Minimize and centralize assumptions about build output

Closes gh-15471

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jPropertiesTests.java

@@ -141,10 +141,10 @@ public class Neo4jPropertiesTests {
 	@Test
 	public void embeddedModeWithRelativeLocation() {
 		Neo4jProperties properties = load(true,
-				"spring.data.neo4j.uri=file:target/neo4j/my.db");
+				"spring.data.neo4j.uri=file:relative/path/to/my.db");
 		Configuration configuration = properties.createConfiguration();
 		assertDriver(configuration, Neo4jProperties.EMBEDDED_DRIVER,
-				"file:target/neo4j/my.db");
+				"file:relative/path/to/my.db");
 	}
 
 	private static void assertDriver(Configuration actual, String driver, String uri) {

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/freemarker/FreeMarkerAutoConfigurationTests.java

@@ -24,6 +24,7 @@ import org.junit.Test;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.boot.testsupport.rule.OutputCapture;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -36,6 +37,8 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class FreeMarkerAutoConfigurationTests {
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
 			.withConfiguration(AutoConfigurations.of(FreeMarkerAutoConfiguration.class));
 
@@ -68,19 +71,24 @@ public class FreeMarkerAutoConfigurationTests {
 
 	@Test
 	public void emptyTemplateLocation() {
-		new File("target/test-classes/templates/empty-directory").mkdir();
+		File emptyDirectory = new File(this.buildOutput.getTestResourcesLocation(),
-		this.contextRunner.withPropertyValues("spring.freemarker.templateLoaderPath:"
+				"empty-templates/empty-directory");
-				+ "classpath:/templates/empty-directory/").run((context) -> {
+		emptyDirectory.mkdirs();
-				});
+		this.contextRunner
+				.withPropertyValues("spring.freemarker.templateLoaderPath:"
+						+ "classpath:/empty-templates/empty-directory/")
+				.run((context) -> assertThat(this.output.toString())
+						.doesNotContain("Cannot find template location"));
 	}
 
 	@Test
 	public void nonExistentLocationAndEmptyLocation() {
-		new File("target/test-classes/templates/empty-directory").mkdir();
+		new File(this.buildOutput.getTestResourcesLocation(),
+				"empty-templates/empty-directory").mkdirs();
 		this.contextRunner.withPropertyValues("spring.freemarker.templateLoaderPath:"
-				+ "classpath:/does-not-exist/,classpath:/templates/empty-directory/")
+				+ "classpath:/does-not-exist/,classpath:/empty-templates/empty-directory/")
-				.run((context) -> {
+				.run((context) -> assertThat(this.output.toString())
-				});
+						.doesNotContain("Cannot find template location"));
 	}
 
 }

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/groovy/template/GroovyTemplateAutoConfigurationTests.java

@@ -31,6 +31,7 @@ import org.junit.Before;
 import org.junit.Test;
 
 import org.springframework.boot.test.util.TestPropertyValues;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.mock.web.MockHttpServletRequest;
@@ -53,6 +54,8 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class GroovyTemplateAutoConfigurationTests {
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	private AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
 
 	@Before
@@ -76,7 +79,8 @@ public class GroovyTemplateAutoConfigurationTests {
 
 	@Test
 	public void emptyTemplateLocation() {
-		new File("target/test-classes/templates/empty-directory").mkdir();
+		new File(this.buildOutput.getTestResourcesLocation(),
+				"empty-templates/empty-directory").mkdirs();
 		registerAndRefreshContext("spring.groovy.template.resource-loader-path:"
 				+ "classpath:/templates/empty-directory/");
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfigurationTests.java

@@ -244,7 +244,7 @@ public class DataSourceAutoConfigurationTests {
 		public DataSource dataSource() {
 			this.pool = new BasicDataSource();
 			this.pool.setDriverClassName("org.hsqldb.jdbcDriver");
-			this.pool.setUrl("jdbc:hsqldb:target/overridedb");
+			this.pool.setUrl("jdbc:hsqldb:mem:overridedb");
 			this.pool.setUsername("sa");
 			return this.pool;
 		}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/embedded/EmbeddedMongoAutoConfigurationTests.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.autoconfigure.mongo.embedded;
 
 import java.io.File;
+import java.io.IOException;
 import java.util.EnumSet;
 import java.util.stream.Collectors;
 
@@ -27,7 +28,9 @@ import de.flapdoodle.embed.mongo.distribution.Feature;
 import de.flapdoodle.embed.mongo.distribution.Version;
 import org.bson.Document;
 import org.junit.After;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
@@ -52,6 +55,9 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class EmbeddedMongoAutoConfigurationTests {
 
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
 	private AnnotationConfigApplicationContext context;
 
 	@After
@@ -143,8 +149,8 @@ public class EmbeddedMongoAutoConfigurationTests {
 	}
 
 	@Test
-	public void mongoWritesToCustomDatabaseDir() {
+	public void mongoWritesToCustomDatabaseDir() throws IOException {
-		File customDatabaseDir = new File("target/custom-database-dir");
+		File customDatabaseDir = this.temp.newFolder("custom-database-dir");
 		FileSystemUtils.deleteRecursively(customDatabaseDir);
 		load("spring.mongodb.embedded.storage.databaseDir="
 				+ customDatabaseDir.getPath());

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafReactiveAutoConfigurationTests.java

@@ -39,6 +39,7 @@ import org.thymeleaf.templateresolver.ITemplateResolver;
 import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
 import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.test.util.TestPropertyValues;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.boot.testsupport.rule.OutputCapture;
 import org.springframework.boot.web.reactive.context.AnnotationConfigReactiveWebApplicationContext;
 import org.springframework.context.annotation.Bean;
@@ -61,6 +62,8 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class ThymeleafReactiveAutoConfigurationTests {
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	@Rule
 	public final OutputCapture output = new OutputCapture();
 
@@ -184,9 +187,10 @@ public class ThymeleafReactiveAutoConfigurationTests {
 
 	@Test
 	public void templateLocationEmpty() {
-		new File("target/test-classes/templates/empty-directory").mkdir();
+		new File(this.buildOutput.getTestResourcesLocation(),
+				"empty-templates/empty-directory").mkdirs();
 		load(BaseConfiguration.class,
-				"spring.thymeleaf.prefix:classpath:/templates/empty-directory/");
+				"spring.thymeleaf.prefix:classpath:/empty-templates/empty-directory/");
 		assertThat(this.output.toString())
 				.doesNotContain("Cannot find template location");
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafServletAutoConfigurationTests.java

@@ -42,6 +42,7 @@ import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
 import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.test.rule.OutputCapture;
 import org.springframework.boot.test.util.TestPropertyValues;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.boot.web.servlet.filter.OrderedCharacterEncodingFilter;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
@@ -75,6 +76,8 @@ import static org.hamcrest.Matchers.containsString;
  */
 public class ThymeleafServletAutoConfigurationTests {
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	@Rule
 	public OutputCapture output = new OutputCapture();
 
@@ -176,9 +179,10 @@ public class ThymeleafServletAutoConfigurationTests {
 
 	@Test
 	public void templateLocationEmpty() {
-		new File("target/test-classes/templates/empty-directory").mkdir();
+		new File(this.buildOutput.getTestResourcesLocation(),
+				"empty-templates/empty-directory").mkdirs();
 		load(BaseConfiguration.class,
-				"spring.thymeleaf.prefix:classpath:/templates/empty-directory/");
+				"spring.thymeleaf.prefix:classpath:/empty-templates/empty-directory/");
 	}
 
 	@Test

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfigurationTests.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.autoconfigure.transaction.jta;
 
 import java.io.File;
+import java.io.IOException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 
@@ -35,8 +36,9 @@ import com.atomikos.icatch.config.UserTransactionService;
 import com.atomikos.icatch.jta.UserTransactionManager;
 import com.atomikos.jms.AtomikosConnectionFactoryBean;
 import org.junit.After;
-import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration;
@@ -55,7 +57,6 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.transaction.jta.JtaTransactionManager;
-import org.springframework.util.FileSystemUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
@@ -72,12 +73,10 @@ import static org.mockito.Mockito.mock;
  */
 public class JtaAutoConfigurationTests {
 
-	private AnnotationConfigApplicationContext context;
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
 
-	@Before
+	private AnnotationConfigApplicationContext context;
-	public void cleanUpLogs() {
-		FileSystemUtils.deleteRecursively(new File("target/transaction-logs"));
-	}
 
 	@After
 	public void closeContext() {
@@ -155,15 +154,16 @@ public class JtaAutoConfigurationTests {
 	}
 
 	@Test
-	public void defaultAtomikosTransactionManagerName() {
+	public void defaultAtomikosTransactionManagerName() throws IOException {
 		this.context = new AnnotationConfigApplicationContext();
-		TestPropertyValues.of("spring.jta.logDir:target/transaction-logs")
+		File logs = this.temp.newFolder("jta");
+		TestPropertyValues.of("spring.jta.logDir:" + logs.getAbsolutePath())
 				.applyTo(this.context);
 		this.context.register(JtaPropertiesConfiguration.class,
 				AtomikosJtaConfiguration.class);
 		this.context.refresh();
 
-		File epochFile = new File("target/transaction-logs/tmlog0.log");
+		File epochFile = new File(logs, "tmlog0.log");
 		assertThat(epochFile.isFile()).isTrue();
 	}
 

spring-boot-project/spring-boot-cli/src/it/java/org/springframework/boot/cli/CommandLineIT.java

@@ -18,7 +18,9 @@ package org.springframework.boot.cli;
 
 import java.io.IOException;
 
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.boot.cli.infrastructure.CommandLineInvoker;
 import org.springframework.boot.cli.infrastructure.CommandLineInvoker.Invocation;
@@ -36,7 +38,10 @@ import static org.junit.Assert.assertThat;
  */
 public class CommandLineIT {
 
-	private final CommandLineInvoker cli = new CommandLineInvoker();
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
+	private final CommandLineInvoker cli = new CommandLineInvoker(this.temp);
 
 	@Test
 	public void hintProducesListOfValidCommands()

spring-boot-project/spring-boot-cli/src/it/java/org/springframework/boot/cli/JarCommandIT.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,9 @@ package org.springframework.boot.cli;
 
 import java.io.File;
 
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.boot.cli.command.archive.JarCommand;
 import org.springframework.boot.cli.infrastructure.CommandLineInvoker;
@@ -43,8 +45,11 @@ public class JarCommandIT {
 	private static final boolean JAVA_9_OR_LATER = isClassPresent(
 			"java.security.cert.URICertStoreParameters");
 
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
 	private final CommandLineInvoker cli = new CommandLineInvoker(
-			new File("src/it/resources/jar-command"));
+			new File("src/it/resources/jar-command"), this.temp);
 
 	@Test
 	public void noArguments() throws Exception {
@@ -66,7 +71,7 @@ public class JarCommandIT {
 
 	@Test
 	public void jarCreationWithGrabResolver() throws Exception {
-		File jar = new File("target/test-app.jar");
+		File jar = new File(this.temp.getRoot(), "test-app.jar");
 		Invocation invocation = this.cli.invoke("run", jar.getAbsolutePath(),
 				"bad.groovy");
 		invocation.await();
@@ -93,7 +98,7 @@ public class JarCommandIT {
 
 	@Test
 	public void jarCreation() throws Exception {
-		File jar = new File("target/test-app.jar");
+		File jar = new File(this.temp.getRoot(), "test-app.jar");
 		Invocation invocation = this.cli.invoke("jar", jar.getAbsolutePath(),
 				"jar.groovy");
 		invocation.await();
@@ -127,7 +132,7 @@ public class JarCommandIT {
 
 	@Test
 	public void jarCreationWithIncludes() throws Exception {
-		File jar = new File("target/test-app.jar");
+		File jar = new File(this.temp.getRoot(), "test-app.jar");
 		Invocation invocation = this.cli.invoke("jar", jar.getAbsolutePath(), "--include",
 				"-public/**,-resources/**", "jar.groovy");
 		invocation.await();

spring-boot-project/spring-boot-cli/src/it/java/org/springframework/boot/cli/WarCommandIT.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,9 @@ package org.springframework.boot.cli;
 
 import java.io.File;
 
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.boot.cli.command.archive.WarCommand;
 import org.springframework.boot.cli.infrastructure.CommandLineInvoker;
@@ -35,12 +37,15 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class WarCommandIT {
 
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
 	private final CommandLineInvoker cli = new CommandLineInvoker(
-			new File("src/it/resources/war-command"));
+			new File("src/it/resources/war-command"), this.temp);
 
 	@Test
 	public void warCreation() throws Exception {
-		File war = new File("target/test-app.war");
+		File war = new File(this.temp.getRoot(), "test-app.war");
 		Invocation invocation = this.cli.invoke("war", war.getAbsolutePath(),
 				"war.groovy");
 		invocation.await();

spring-boot-project/spring-boot-cli/src/it/java/org/springframework/boot/cli/infrastructure/CommandLineInvoker.java

@@ -32,6 +32,9 @@ import java.util.stream.Collectors;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
+import org.junit.rules.TemporaryFolder;
+
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.Assert;
 import org.springframework.util.StreamUtils;
 
@@ -46,12 +49,15 @@ public final class CommandLineInvoker {
 
 	private final File workingDirectory;
 
-	public CommandLineInvoker() {
+	private final TemporaryFolder temp;
-		this(new File("."));
+
+	public CommandLineInvoker(TemporaryFolder temp) {
+		this(new File("."), temp);
 	}
 
-	public CommandLineInvoker(File workingDirectory) {
+	public CommandLineInvoker(File workingDirectory, TemporaryFolder temp) {
 		this.workingDirectory = workingDirectory;
+		this.temp = temp;
 	}
 
 	public Invocation invoke(String... args) throws IOException {
@@ -69,9 +75,9 @@ public final class CommandLineInvoker {
 	}
 
 	private File findLaunchScript() throws IOException {
-		File unpacked = new File("target/unpacked-cli");
+		File unpacked = new File(this.temp.getRoot(), "unpacked-cli");
 		if (!unpacked.isDirectory()) {
-			File zip = new File("target")
+			File zip = new BuildOutput(getClass()).getRootLocation()
 					.listFiles((pathname) -> pathname.getName().endsWith("-bin.zip"))[0];
 			try (ZipInputStream input = new ZipInputStream(new FileInputStream(zip))) {
 				ZipEntry entry;

spring-boot-project/spring-boot-cli/src/test/java/org/springframework/boot/cli/CliTester.java

@@ -32,6 +32,7 @@ import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 
 import org.junit.Assume;
+import org.junit.rules.TemporaryFolder;
 import org.junit.rules.TestRule;
 import org.junit.runner.Description;
 import org.junit.runners.model.Statement;
@@ -42,6 +43,7 @@ import org.springframework.boot.cli.command.archive.JarCommand;
 import org.springframework.boot.cli.command.grab.GrabCommand;
 import org.springframework.boot.cli.command.run.RunCommand;
 import org.springframework.boot.test.rule.OutputCapture;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.util.StringUtils;
 
@@ -54,6 +56,10 @@ import org.springframework.util.StringUtils;
  */
 public class CliTester implements TestRule {
 
+	private final TemporaryFolder temp = new TemporaryFolder();
+
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	private final OutputCapture outputCapture = new OutputCapture();
 
 	private long timeout = TimeUnit.MINUTES.toMillis(6);
@@ -62,6 +68,8 @@ public class CliTester implements TestRule {
 
 	private final String prefix;
 
+	private File serverPortFile;
+
 	public CliTester(String prefix) {
 		this.prefix = prefix;
 	}
@@ -75,14 +83,15 @@ public class CliTester implements TestRule {
 		boolean classpathUpdated = false;
 		for (String arg : args) {
 			if (arg.startsWith("--classpath=")) {
-				arg = arg + ":" + new File("target/test-classes").getAbsolutePath();
+				arg = arg + ":"
+						+ this.buildOutput.getTestClassesLocation().getAbsolutePath();
 				classpathUpdated = true;
 			}
 			updatedArgs.add(arg);
 		}
 		if (!classpathUpdated) {
-			updatedArgs.add(
+			updatedArgs.add("--classpath=.:"
-					"--classpath=.:" + new File("target/test-classes").getAbsolutePath());
+					+ this.buildOutput.getTestClassesLocation().getAbsolutePath());
 		}
 		Future<RunCommand> future = submitCommand(new RunCommand(),
 				StringUtils.toStringArray(updatedArgs));
@@ -111,8 +120,8 @@ public class CliTester implements TestRule {
 			System.setProperty("server.port", "0");
 			System.setProperty("spring.application.class.name",
 					"org.springframework.boot.cli.CliTesterSpringApplication");
-			System.setProperty("portfile",
+			this.serverPortFile = new File(this.temp.newFolder(), "server.port");
-					new File("target/server.port").getAbsolutePath());
+			System.setProperty("portfile", this.serverPortFile.getAbsolutePath());
 			try {
 				command.run(sources);
 				return command;
@@ -168,8 +177,9 @@ public class CliTester implements TestRule {
 
 	@Override
 	public Statement apply(Statement base, Description description) {
-		final Statement statement = CliTester.this.outputCapture
+		final Statement statement = this.temp.apply(
-				.apply(new RunLauncherStatement(base), description);
+				this.outputCapture.apply(new RunLauncherStatement(base), description),
+				description);
 		return new Statement() {
 
 			@Override
@@ -180,6 +190,7 @@ public class CliTester implements TestRule {
 								.contains("integration"));
 				statement.evaluate();
 			}
+
 		};
 	}
 
@@ -190,7 +201,7 @@ public class CliTester implements TestRule {
 	public String getHttpOutput(String uri) {
 		try {
 			int port = Integer.parseInt(
-					FileCopyUtils.copyToString(new FileReader("target/server.port")));
+					FileCopyUtils.copyToString(new FileReader(this.serverPortFile)));
 			InputStream stream = URI.create("http://localhost:" + port + uri).toURL()
 					.openStream();
 			BufferedReader reader = new BufferedReader(new InputStreamReader(stream));

spring-boot-project/spring-boot-cli/src/test/java/org/springframework/boot/cli/GrabCommandIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.boot.cli.command.grab.GrabCommand;
 import org.springframework.util.FileSystemUtils;
@@ -37,13 +38,15 @@ import static org.junit.Assert.fail;
  */
 public class GrabCommandIntegrationTests {
 
+	@Rule
+	public TemporaryFolder temp = new TemporaryFolder();
+
 	@Rule
 	public CliTester cli = new CliTester("src/test/resources/grab-samples/");
 
 	@Before
 	@After
 	public void deleteLocalRepository() {
-		FileSystemUtils.deleteRecursively(new File("target/repository"));
 		System.clearProperty("grape.root");
 		System.clearProperty("groovy.grape.report.downloads");
 	}
@@ -51,13 +54,13 @@ public class GrabCommandIntegrationTests {
 	@Test
 	public void grab() throws Exception {
 
-		System.setProperty("grape.root", "target");
+		System.setProperty("grape.root", this.temp.getRoot().getAbsolutePath());
 		System.setProperty("groovy.grape.report.downloads", "true");
 
 		// Use --autoconfigure=false to limit the amount of downloaded dependencies
 		String output = this.cli.grab("grab.groovy", "--autoconfigure=false");
-		assertThat(new File("target/repository/joda-time/joda-time").isDirectory())
+		assertThat(new File(this.temp.getRoot(), "repository/joda-time/joda-time"))
-				.isTrue();
+				.isDirectory();
 		// Should be resolved from local repository cache
 		assertThat(output.contains("Downloading: file:")).isTrue();
 	}
@@ -76,13 +79,12 @@ public class GrabCommandIntegrationTests {
 
 	@Test
 	public void customMetadata() throws Exception {
-		System.setProperty("grape.root", "target");
+		System.setProperty("grape.root", this.temp.getRoot().getAbsolutePath());
+		File repository = new File(this.temp.getRoot().getAbsolutePath(), "repository");
 		FileSystemUtils.copyRecursively(
-				new File("src/test/resources/grab-samples/repository"),
+				new File("src/test/resources/grab-samples/repository"), repository);
-				new File("target/repository"));
 		this.cli.grab("customDependencyManagement.groovy", "--autoconfigure=false");
-		assertThat(new File("target/repository/javax/ejb/ejb-api/3.0").isDirectory())
+		assertThat(new File(repository, "javax/ejb/ejb-api/3.0")).isDirectory();
-				.isTrue();
 	}
 
 }

spring-boot-project/spring-boot-cli/src/test/java/org/springframework/boot/cli/command/install/InstallerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,8 +28,6 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
 
-import org.springframework.util.FileSystemUtils;
-
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.mock;
@@ -50,9 +48,7 @@ public class InstallerTests {
 
 	@Before
 	public void setUp() throws IOException {
-		System.setProperty("spring.home", "target");
+		System.setProperty("spring.home", this.tempFolder.getRoot().getAbsolutePath());
-		FileSystemUtils.deleteRecursively(new File("target/lib"));
-
 		this.installer = new Installer(this.resolver);
 	}
 
@@ -119,7 +115,7 @@ public class InstallerTests {
 
 	private Set<String> getNamesOfFilesInLibExt() {
 		Set<String> names = new HashSet<>();
-		for (File file : new File("target/lib/ext").listFiles()) {
+		for (File file : new File(this.tempFolder.getRoot(), "lib/ext").listFiles()) {
 			names.add(file.getName());
 		}
 		return names;

spring-boot-project/spring-boot-devtools/src/test/java/org/springframework/boot/devtools/autoconfigure/DevToolsPooledDataSourceAutoConfigurationTests.java

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.devtools.autoconfigure;
 
+import java.io.IOException;
 import java.sql.SQLException;
 import java.sql.Statement;
 
@@ -23,7 +24,9 @@ import javax.sql.DataSource;
 
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -40,9 +43,13 @@ import static org.mockito.Mockito.verify;
 public class DevToolsPooledDataSourceAutoConfigurationTests
 		extends AbstractDevToolsDataSourceAutoConfigurationTests {
 
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
 	@Before
-	public void before() {
+	public void before() throws IOException {
-		System.setProperty("derby.stream.error.file", "target/derby.log");
+		System.setProperty("derby.stream.error.file",
+				this.temp.newFile("derby.log").getAbsolutePath());
 	}
 
 	@After

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/restdocs/MockMvcRestDocsAutoConfigurationAdvancedConfigurationIntegrationTests.java

@@ -26,6 +26,7 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.context.annotation.Bean;
 import org.springframework.restdocs.mockmvc.MockMvcRestDocumentation;
 import org.springframework.restdocs.mockmvc.RestDocumentationResultHandler;
@@ -55,23 +56,26 @@ import static org.springframework.test.web.servlet.request.MockMvcRequestBuilder
 @AutoConfigureRestDocs
 public class MockMvcRestDocsAutoConfigurationAdvancedConfigurationIntegrationTests {
 
-	@Before
-	public void deleteSnippets() {
-		FileSystemUtils.deleteRecursively(new File("target/generated-snippets"));
-	}
-
 	@Autowired
 	private MockMvc mvc;
 
 	@Autowired
 	private RestDocumentationResultHandler documentationHandler;
 
+	private File generatedSnippets;
+
+	@Before
+	public void deleteSnippets() {
+		this.generatedSnippets = new File(new BuildOutput(getClass()).getRootLocation(),
+				"generated-snippets");
+		FileSystemUtils.deleteRecursively(this.generatedSnippets);
+	}
+
 	@Test
 	public void snippetGeneration() throws Exception {
 		this.mvc.perform(get("/")).andDo(this.documentationHandler.document(links(
 				linkWithRel("self").description("Canonical location of this resource"))));
-		File defaultSnippetsDir = new File(
+		File defaultSnippetsDir = new File(this.generatedSnippets, "snippet-generation");
-				"target/generated-snippets/snippet-generation");
 		assertThat(defaultSnippetsDir).exists();
 		assertThat(new File(defaultSnippetsDir, "curl-request.md"))
 				.has(contentContaining("'http://localhost:8080/'"));

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/restdocs/MockMvcRestDocsAutoConfigurationIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import org.junit.runner.RunWith;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.util.FileSystemUtils;
@@ -43,18 +44,22 @@ import static org.springframework.test.web.servlet.request.MockMvcRequestBuilder
 @AutoConfigureRestDocs(uriScheme = "https", uriHost = "api.example.com", uriPort = 443)
 public class MockMvcRestDocsAutoConfigurationIntegrationTests {
 
-	@Before
-	public void deleteSnippets() {
-		FileSystemUtils.deleteRecursively(new File("target/generated-snippets"));
-	}
-
 	@Autowired
 	private MockMvc mvc;
 
+	private File generatedSnippets;
+
+	@Before
+	public void deleteSnippets() {
+		this.generatedSnippets = new File(new BuildOutput(getClass()).getRootLocation(),
+				"generated-snippets");
+		FileSystemUtils.deleteRecursively(this.generatedSnippets);
+	}
+
 	@Test
 	public void defaultSnippetsAreWritten() throws Exception {
 		this.mvc.perform(get("/")).andDo(document("default-snippets"));
-		File defaultSnippetsDir = new File("target/generated-snippets/default-snippets");
+		File defaultSnippetsDir = new File(this.generatedSnippets, "default-snippets");
 		assertThat(defaultSnippetsDir).exists();
 		assertThat(new File(defaultSnippetsDir, "curl-request.adoc"))
 				.has(contentContaining("'https://api.example.com/'"));

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/restdocs/RestAssuredRestDocsAutoConfigurationAdvancedConfigurationIntegrationTests.java

@@ -28,6 +28,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.boot.web.server.LocalServerPort;
 import org.springframework.context.annotation.Bean;
 import org.springframework.restdocs.mockmvc.MockMvcRestDocumentation;
@@ -59,14 +60,18 @@ public class RestAssuredRestDocsAutoConfigurationAdvancedConfigurationIntegratio
 	@LocalServerPort
 	private int port;
 
-	@Before
-	public void deleteSnippets() {
-		FileSystemUtils.deleteRecursively(new File("target/generated-snippets"));
-	}
-
 	@Autowired
 	private RequestSpecification documentationSpec;
 
+	private File generatedSnippets;
+
+	@Before
+	public void deleteSnippets() {
+		this.generatedSnippets = new File(new BuildOutput(getClass()).getRootLocation(),
+				"generated-snippets");
+		FileSystemUtils.deleteRecursively(this.generatedSnippets);
+	}
+
 	@Test
 	public void snippetGeneration() {
 		given(this.documentationSpec)
@@ -74,7 +79,7 @@ public class RestAssuredRestDocsAutoConfigurationAdvancedConfigurationIntegratio
 						preprocessRequest(modifyUris().scheme("https")
 								.host("api.example.com").removePort())))
 				.when().port(this.port).get("/").then().assertThat().statusCode(is(200));
-		File defaultSnippetsDir = new File("target/generated-snippets/default-snippets");
+		File defaultSnippetsDir = new File(this.generatedSnippets, "default-snippets");
 		assertThat(defaultSnippetsDir).exists();
 		assertThat(new File(defaultSnippetsDir, "curl-request.md"))
 				.has(contentContaining("'https://api.example.com/'"));

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/restdocs/RestAssuredRestDocsAutoConfigurationIntegrationTests.java

@@ -27,6 +27,7 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.boot.web.server.LocalServerPort;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.util.FileSystemUtils;
@@ -51,14 +52,18 @@ public class RestAssuredRestDocsAutoConfigurationIntegrationTests {
 	@LocalServerPort
 	private int port;
 
-	@Before
-	public void deleteSnippets() {
-		FileSystemUtils.deleteRecursively(new File("target/generated-snippets"));
-	}
-
 	@Autowired
 	private RequestSpecification documentationSpec;
 
+	private File generatedSnippets;
+
+	@Before
+	public void deleteSnippets() {
+		this.generatedSnippets = new File(new BuildOutput(getClass()).getRootLocation(),
+				"generated-snippets");
+		FileSystemUtils.deleteRecursively(this.generatedSnippets);
+	}
+
 	@Test
 	public void defaultSnippetsAreWritten() {
 		given(this.documentationSpec)
@@ -66,7 +71,7 @@ public class RestAssuredRestDocsAutoConfigurationIntegrationTests {
 						preprocessRequest(modifyUris().scheme("https")
 								.host("api.example.com").removePort())))
 				.when().port(this.port).get("/").then().assertThat().statusCode(is(200));
-		File defaultSnippetsDir = new File("target/generated-snippets/default-snippets");
+		File defaultSnippetsDir = new File(this.generatedSnippets, "default-snippets");
 		assertThat(defaultSnippetsDir).exists();
 		assertThat(new File(defaultSnippetsDir, "curl-request.adoc"))
 				.has(contentContaining("'https://api.example.com/'"));

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/restdocs/WebTestClientRestDocsAutoConfigurationAdvancedConfigurationIntegrationTests.java

@@ -26,6 +26,7 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.reactive.WebFluxTest;
 import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.context.annotation.Bean;
 import org.springframework.restdocs.mockmvc.MockMvcRestDocumentation;
 import org.springframework.restdocs.mockmvc.RestDocumentationResultHandler;
@@ -51,19 +52,23 @@ import static org.springframework.restdocs.webtestclient.WebTestClientRestDocume
 @AutoConfigureRestDocs(uriScheme = "https", uriHost = "api.example.com", uriPort = 443)
 public class WebTestClientRestDocsAutoConfigurationAdvancedConfigurationIntegrationTests {
 
-	@Before
-	public void deleteSnippets() {
-		FileSystemUtils.deleteRecursively(new File("target/generated-snippets"));
-	}
-
 	@Autowired
 	private WebTestClient webTestClient;
 
+	private File generatedSnippets;
+
+	@Before
+	public void deleteSnippets() {
+		this.generatedSnippets = new File(new BuildOutput(getClass()).getRootLocation(),
+				"generated-snippets");
+		FileSystemUtils.deleteRecursively(this.generatedSnippets);
+	}
+
 	@Test
 	public void defaultSnippetsAreWritten() throws Exception {
 		this.webTestClient.get().uri("/").exchange().expectStatus().is2xxSuccessful()
 				.expectBody().consumeWith(document("default-snippets"));
-		File defaultSnippetsDir = new File("target/generated-snippets/default-snippets");
+		File defaultSnippetsDir = new File(this.generatedSnippets, "default-snippets");
 		assertThat(defaultSnippetsDir).exists();
 		assertThat(new File(defaultSnippetsDir, "curl-request.md"))
 				.has(contentContaining("'https://api.example.com/'"));

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/restdocs/WebTestClientRestDocsAutoConfigurationIntegrationTests.java

@@ -25,6 +25,7 @@ import org.junit.runner.RunWith;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.reactive.WebFluxTest;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
@@ -44,19 +45,23 @@ import static org.springframework.restdocs.webtestclient.WebTestClientRestDocume
 @AutoConfigureRestDocs(uriScheme = "https", uriHost = "api.example.com", uriPort = 443)
 public class WebTestClientRestDocsAutoConfigurationIntegrationTests {
 
-	@Before
-	public void deleteSnippets() {
-		FileSystemUtils.deleteRecursively(new File("target/generated-snippets"));
-	}
-
 	@Autowired
 	private WebTestClient webTestClient;
 
+	private File generatedSnippets;
+
+	@Before
+	public void deleteSnippets() {
+		this.generatedSnippets = new File(new BuildOutput(getClass()).getRootLocation(),
+				"generated-snippets");
+		FileSystemUtils.deleteRecursively(this.generatedSnippets);
+	}
+
 	@Test
 	public void defaultSnippetsAreWritten() throws Exception {
 		this.webTestClient.get().uri("/").exchange().expectStatus().is2xxSuccessful()
 				.expectBody().consumeWith(document("default-snippets"));
-		File defaultSnippetsDir = new File("target/generated-snippets/default-snippets");
+		File defaultSnippetsDir = new File(this.generatedSnippets, "default-snippets");
 		assertThat(defaultSnippetsDir).exists();
 		assertThat(new File(defaultSnippetsDir, "curl-request.adoc"))
 				.has(contentContaining("'https://api.example.com/'"));

spring-boot-project/spring-boot-tools/spring-boot-loader-tools/src/test/java/org/springframework/boot/loader/tools/FileUtilsTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,9 +46,9 @@ public class FileUtilsTests {
 	private File originDirectory;
 
 	@Before
-	public void init() {
+	public void init() throws IOException {
-		this.outputDirectory = new File("target/test/remove");
+		this.outputDirectory = this.temporaryFolder.newFolder("remove");
-		this.originDirectory = new File("target/test/keep");
+		this.originDirectory = this.temporaryFolder.newFolder("keep");
 		FileSystemUtils.deleteRecursively(this.outputDirectory);
 		FileSystemUtils.deleteRecursively(this.originDirectory);
 		this.outputDirectory.mkdirs();

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/BuildOutput.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2012-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.testsupport;
+
+import java.io.File;
+import java.net.URISyntaxException;
+
+/**
+ * Provides access to build output locations in a build system and IDE agnostic manner.
+ *
+ * @author Andy Wilkinson
+ */
+public class BuildOutput {
+
+	private final Class<?> testClass;
+
+	public BuildOutput(Class<?> testClass) {
+		this.testClass = testClass;
+	}
+
+	/**
+	 * Returns the location into which test classes have been built.
+	 * @return test classes location
+	 */
+	public File getTestClassesLocation() {
+		try {
+			File location = new File(this.testClass.getProtectionDomain().getCodeSource()
+					.getLocation().toURI());
+			if (location.getPath().endsWith(path("target", "test-classes"))) {
+				return location;
+			}
+			throw new IllegalStateException(
+					"Unexpected test classes location '" + location + "'");
+		}
+		catch (URISyntaxException ex) {
+			throw new IllegalStateException("Invalid test class code source location",
+					ex);
+		}
+	}
+
+	/**
+	 * Returns the location into which test resources have been built.
+	 * @return test resources location
+	 */
+	public File getTestResourcesLocation() {
+		File testClassesLocation = getTestClassesLocation();
+		if (testClassesLocation.getPath().endsWith(path("target", "test-classes"))) {
+			return testClassesLocation;
+		}
+		throw new IllegalStateException(
+				"Cannot determine test resources location from classes location '"
+						+ testClassesLocation + "'");
+	}
+
+	/**
+	 * Returns the root location into which build output is written.
+	 * @return root location
+	 */
+	public File getRootLocation() {
+		return getTestClassesLocation().getParentFile();
+	}
+
+	private String path(String... components) {
+		return File.separator + String.join(File.separator, components);
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/context/AbstractConfigurationClassTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,7 +16,6 @@
 
 package org.springframework.boot.testsupport.context;
 
-import java.io.File;
 import java.io.IOException;
 import java.util.HashSet;
 import java.util.Set;
@@ -25,6 +24,7 @@ import org.junit.Test;
 
 import org.springframework.asm.Opcodes;
 import org.springframework.beans.DirectFieldAccessor;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.io.Resource;
@@ -44,6 +44,8 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public abstract class AbstractConfigurationClassTests {
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	private ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
 
 	@Test
@@ -83,7 +85,7 @@ public abstract class AbstractConfigurationClassTests {
 
 	private boolean isTestClass(Resource resource) throws IOException {
 		return resource.getFile().getAbsolutePath()
-				.contains("target" + File.separator + "test-classes");
+				.startsWith(this.buildOutput.getTestClassesLocation().getAbsolutePath());
 	}
 
 	private boolean isPublic(MethodMetadata methodMetadata) {

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/config/ConfigFileApplicationListenerTests.java

@@ -43,6 +43,7 @@ import org.springframework.boot.WebApplicationType;
 import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
 import org.springframework.boot.env.EnvironmentPostProcessor;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.boot.testsupport.rule.OutputCapture;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
@@ -73,6 +74,8 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class ConfigFileApplicationListenerTests {
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	private final StandardEnvironment environment = new StandardEnvironment();
 
 	private final SpringApplication application = new SpringApplication();
@@ -486,8 +489,9 @@ public class ConfigFileApplicationListenerTests {
 		String suffix = (profile != null) ? "-" + profile : "";
 		String string = ".properties)";
 		return "Loaded config file '"
-				+ new File("target/test-classes/application" + suffix + ".properties")
+				+ new File(this.buildOutput.getTestResourcesLocation(),
-						.getAbsoluteFile().toURI().toString()
+						"application" + suffix + ".properties").getAbsoluteFile().toURI()
+								.toString()
 				+ "' (classpath:/application" + suffix + string;
 	}
 

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/logging/LoggingApplicationListenerTests.java

@@ -33,6 +33,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;
 import org.slf4j.bridge.SLF4JBridgeHandler;
 import org.slf4j.impl.StaticLoggerBinder;
@@ -88,6 +89,9 @@ public class LoggingApplicationListenerTests {
 	@Rule
 	public OutputCapture outputCapture = new OutputCapture();
 
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
 	private final LoggingApplicationListener initializer = new LoggingApplicationListener();
 
 	private final LoggerContext loggerContext = (LoggerContext) StaticLoggerBinder
@@ -100,12 +104,14 @@ public class LoggingApplicationListenerTests {
 
 	private final GenericApplicationContext context = new GenericApplicationContext();
 
+	private File logFile;
+
 	@Before
 	public void init() throws SecurityException, IOException {
 		LogManager.getLogManager().readConfiguration(
 				JavaLoggingSystem.class.getResourceAsStream("logging.properties"));
 		multicastEvent(new ApplicationStartingEvent(new SpringApplication(), NO_ARGS));
-		new File("target/foo.log").delete();
+		this.logFile = new File(this.temp.getRoot(), "foo.log");
 		new File(tmpDir() + "/spring.log").delete();
 		ConfigurableEnvironment environment = this.context.getEnvironment();
 		ConfigurationPropertySources.attach(environment);
@@ -216,7 +222,7 @@ public class LoggingApplicationListenerTests {
 	public void addLogFileProperty() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
 				"logging.config=classpath:logback-nondefault.xml",
-				"logging.file.name=target/foo.log");
+				"logging.file.name=" + this.logFile);
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		Log logger = LogFactory.getLog(LoggingApplicationListenerTests.class);
@@ -224,7 +230,7 @@ public class LoggingApplicationListenerTests {
 		logger.info("Hello world");
 		String output = this.outputCapture.toString().substring(existingOutput.length())
 				.trim();
-		assertThat(output).startsWith("target/foo.log");
+		assertThat(output).startsWith(this.logFile.getAbsolutePath());
 	}
 
 	@Test
@@ -232,7 +238,7 @@ public class LoggingApplicationListenerTests {
 	public void addLogFilePropertyWithDeprecatedProperty() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
 				"logging.config=classpath:logback-nondefault.xml",
-				"logging.file=target/foo.log");
+				"logging.file=" + this.logFile);
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		Log logger = LogFactory.getLog(LoggingApplicationListenerTests.class);
@@ -240,39 +246,39 @@ public class LoggingApplicationListenerTests {
 		logger.info("Hello world");
 		String output = this.outputCapture.toString().substring(existingOutput.length())
 				.trim();
-		assertThat(output).startsWith("target/foo.log");
+		assertThat(output).startsWith(this.logFile.getAbsolutePath());
 	}
 
 	@Test
 	public void addLogFilePropertyWithDefault() {
-		assertThat(new File("target/foo.log").exists()).isFalse();
+		assertThat(this.logFile).doesNotExist();
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
-				"logging.file.name=target/foo.log");
+				"logging.file.name=" + this.logFile);
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		Log logger = LogFactory.getLog(LoggingApplicationListenerTests.class);
 		logger.info("Hello world");
-		assertThat(new File("target/foo.log").exists()).isTrue();
+		assertThat(this.logFile).isFile();
 	}
 
 	@Test
 	@Deprecated
 	public void addLogFilePropertyWithDefaultAndDeprecatedProperty() {
-		assertThat(new File("target/foo.log").exists()).isFalse();
+		assertThat(this.logFile).doesNotExist();
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
-				"logging.file=target/foo.log");
+				"logging.file=" + this.logFile);
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		Log logger = LogFactory.getLog(LoggingApplicationListenerTests.class);
 		logger.info("Hello world");
-		assertThat(new File("target/foo.log").exists()).isTrue();
+		assertThat(this.logFile).isFile();
 	}
 
 	@Test
 	public void addLogPathProperty() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
 				"logging.config=classpath:logback-nondefault.xml",
-				"logging.file.path=target/foo/");
+				"logging.file.path=" + this.logFile);
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		Log logger = LogFactory.getLog(LoggingApplicationListenerTests.class);
@@ -280,14 +286,14 @@ public class LoggingApplicationListenerTests {
 		logger.info("Hello world");
 		String output = this.outputCapture.toString().substring(existingOutput.length())
 				.trim();
-		assertThat(output).startsWith("target/foo/spring.log");
+		assertThat(output).startsWith(this.logFile.getAbsolutePath());
 	}
 
 	@Test
 	public void addLogPathPropertyWithDeprecatedProperty() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
 				"logging.config=classpath:logback-nondefault.xml",
-				"logging.path=target/foo/");
+				"logging.path=" + this.temp.getRoot());
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		Log logger = LogFactory.getLog(LoggingApplicationListenerTests.class);
@@ -295,7 +301,8 @@ public class LoggingApplicationListenerTests {
 		logger.info("Hello world");
 		String output = this.outputCapture.toString().substring(existingOutput.length())
 				.trim();
-		assertThat(output).startsWith("target/foo/spring.log");
+		assertThat(output).startsWith(
+				new File(this.temp.getRoot(), "spring.log").getAbsolutePath());
 	}
 
 	@Test
@@ -539,7 +546,7 @@ public class LoggingApplicationListenerTests {
 	public void systemPropertiesAreSetForLoggingConfiguration() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
 				"logging.exception-conversion-word=conversion",
-				"logging.file.name=target/log", "logging.file.path=path",
+				"logging.file.name=" + this.logFile, "logging.file.path=path",
 				"logging.pattern.console=console", "logging.pattern.file=file",
 				"logging.pattern.level=level");
 		this.initializer.initialize(this.context.getEnvironment(),
@@ -551,7 +558,7 @@ public class LoggingApplicationListenerTests {
 		assertThat(System.getProperty(LoggingSystemProperties.EXCEPTION_CONVERSION_WORD))
 				.isEqualTo("conversion");
 		assertThat(System.getProperty(LoggingSystemProperties.LOG_FILE))
-				.isEqualTo("target/log");
+				.isEqualTo(this.logFile.getAbsolutePath());
 		assertThat(System.getProperty(LoggingSystemProperties.LOG_LEVEL_PATTERN))
 				.isEqualTo("level");
 		assertThat(System.getProperty(LoggingSystemProperties.LOG_PATH))
@@ -563,11 +570,11 @@ public class LoggingApplicationListenerTests {
 	@Deprecated
 	public void systemPropertiesAreSetForLoggingConfigurationWithDeprecatedProperties() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
-				"logging.file=target/log", "logging.path=path");
+				"logging.file=" + this.logFile, "logging.path=path");
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		assertThat(System.getProperty(LoggingSystemProperties.LOG_FILE))
-				.isEqualTo("target/log");
+				.isEqualTo(this.logFile.getAbsolutePath());
 		assertThat(System.getProperty(LoggingSystemProperties.LOG_PATH))
 				.isEqualTo("path");
 	}
@@ -597,11 +604,13 @@ public class LoggingApplicationListenerTests {
 	@Test
 	public void logFilePropertiesCanReferenceSystemProperties() {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
-				"logging.file.name=target/${PID}.log");
+				"logging.file.name=" + this.temp.getRoot().getAbsolutePath()
+						+ "${PID}.log");
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
 		assertThat(System.getProperty(LoggingSystemProperties.LOG_FILE))
-				.isEqualTo("target/" + new ApplicationPid().toString() + ".log");
+				.isEqualTo(this.temp.getRoot().getAbsolutePath()
+						+ new ApplicationPid().toString() + ".log");
 	}
 
 	@Test

spring-boot-samples/spring-boot-sample-integration/src/main/java/sample/integration/SampleApplicationRunner.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,21 +16,22 @@
 
 package sample.integration;
 
-import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
 import org.springframework.stereotype.Component;
 
 @Component
-public class SampleCommandLineRunner implements CommandLineRunner {
+public class SampleApplicationRunner implements ApplicationRunner {
 
 	private final SampleMessageGateway gateway;
 
-	public SampleCommandLineRunner(SampleMessageGateway gateway) {
+	public SampleApplicationRunner(SampleMessageGateway gateway) {
 		this.gateway = gateway;
 	}
 
 	@Override
-	public void run(String... args) throws Exception {
+	public void run(ApplicationArguments args) throws Exception {
-		for (String arg : args) {
+		for (String arg : args.getNonOptionArgs()) {
 			this.gateway.echo(arg);
 		}
 	}

spring-boot-samples/spring-boot-sample-integration/src/main/java/sample/integration/SampleIntegrationApplication.java

@@ -16,7 +16,6 @@
 
 package sample.integration;
 
-import java.io.File;
 import java.util.function.Consumer;
 
 import org.springframework.boot.SpringApplication;
@@ -35,10 +34,16 @@ import org.springframework.integration.file.FileWritingMessageHandler;
 @EnableConfigurationProperties(ServiceProperties.class)
 public class SampleIntegrationApplication {
 
+	private final ServiceProperties serviceProperties;
+
+	public SampleIntegrationApplication(ServiceProperties serviceProperties) {
+		this.serviceProperties = serviceProperties;
+	}
+
 	@Bean
 	public FileReadingMessageSource fileReader() {
 		FileReadingMessageSource reader = new FileReadingMessageSource();
-		reader.setDirectory(new File("target/input"));
+		reader.setDirectory(this.serviceProperties.getInputDir());
 		return reader;
 	}
 
@@ -55,7 +60,7 @@ public class SampleIntegrationApplication {
 	@Bean
 	public FileWritingMessageHandler fileWriter() {
 		FileWritingMessageHandler writer = new FileWritingMessageHandler(
-				new File("target/output"));
+				this.serviceProperties.getOutputDir());
 		writer.setExpectReply(false);
 		return writer;
 	}

spring-boot-samples/spring-boot-sample-integration/src/main/java/sample/integration/ServiceProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@
 
 package sample.integration;
 
+import java.io.File;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.jmx.export.annotation.ManagedAttribute;
 import org.springframework.jmx.export.annotation.ManagedResource;
@@ -26,6 +28,10 @@ public class ServiceProperties {
 
 	private String greeting = "Hello";
 
+	private File inputDir;
+
+	private File outputDir;
+
 	@ManagedAttribute
 	public String getGreeting() {
 		return this.greeting;
@@ -35,4 +41,20 @@ public class ServiceProperties {
 		this.greeting = greeting;
 	}
 
+	public File getInputDir() {
+		return this.inputDir;
+	}
+
+	public void setInputDir(File inputDir) {
+		this.inputDir = inputDir;
+	}
+
+	public File getOutputDir() {
+		return this.outputDir;
+	}
+
+	public void setOutputDir(File outputDir) {
+		this.outputDir = outputDir;
+	}
+
 }

spring-boot-samples/spring-boot-sample-integration/src/main/resources/application.properties

@@ -1,2 +1,4 @@
 logging.level.org.springframework.integration.file=DEBUG
 service.greeting=Hello
+service.input-dir=input
+service.output-dir=output

spring-boot-samples/spring-boot-sample-integration/src/test/java/sample/integration/consumer/SampleIntegrationApplicationTests.java

@@ -25,9 +25,11 @@ import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
 
 import org.junit.After;
-import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import sample.integration.SampleIntegrationApplication;
+import sample.integration.ServiceProperties;
 import sample.integration.producer.ProducerApplication;
 
 import org.springframework.boot.SpringApplication;
@@ -35,7 +37,6 @@ import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.core.io.DefaultResourceLoader;
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.support.ResourcePatternUtils;
-import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StreamUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -48,20 +49,11 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class SampleIntegrationApplicationTests {
 
+	@Rule
+	public final TemporaryFolder temp = new TemporaryFolder();
+
 	private ConfigurableApplicationContext context;
 
-	@Before
-	public void deleteInputAndOutput() {
-		deleteIfExists(new File("target/input"));
-		deleteIfExists(new File("target/output"));
-	}
-
-	private void deleteIfExists(File directory) {
-		if (directory.exists()) {
-			assertThat(FileSystemUtils.deleteRecursively(directory)).isTrue();
-		}
-	}
-
 	@After
 	public void stop() {
 		if (this.context != null) {
@@ -71,29 +63,37 @@ public class SampleIntegrationApplicationTests {
 
 	@Test
 	public void testVanillaExchange() throws Exception {
-		this.context = SpringApplication.run(SampleIntegrationApplication.class);
+		File inputDir = new File(this.temp.getRoot(), "input");
-		SpringApplication.run(ProducerApplication.class, "World");
+		File outputDir = new File(this.temp.getRoot(), "output");
-		String output = getOutput();
+		this.context = SpringApplication.run(SampleIntegrationApplication.class,
+				"--service.input-dir=" + inputDir, "--service.output-dir=" + outputDir);
+		SpringApplication.run(ProducerApplication.class, "World",
+				"--service.input-dir=" + inputDir, "--service.output-dir=" + outputDir);
+		String output = getOutput(outputDir);
 		assertThat(output).contains("Hello World");
 	}
 
 	@Test
 	public void testMessageGateway() throws Exception {
+		File inputDir = new File(this.temp.getRoot(), "input");
+		File outputDir = new File(this.temp.getRoot(), "output");
 		this.context = SpringApplication.run(SampleIntegrationApplication.class,
-				"testviamg");
+				"testviamg", "--service.input-dir=" + inputDir,
-		String output = getOutput();
+				"--service.output-dir=" + outputDir);
+		String output = getOutput(
+				this.context.getBean(ServiceProperties.class).getOutputDir());
 		assertThat(output).contains("testviamg");
 	}
 
-	private String getOutput() throws Exception {
+	private String getOutput(File outputDir) throws Exception {
 		Future<String> future = Executors.newSingleThreadExecutor()
 				.submit(new Callable<String>() {
 					@Override
 					public String call() throws Exception {
-						Resource[] resources = getResourcesWithContent();
+						Resource[] resources = getResourcesWithContent(outputDir);
 						while (resources.length == 0) {
 							Thread.sleep(200);
-							resources = getResourcesWithContent();
+							resources = getResourcesWithContent(outputDir);
 						}
 						StringBuilder builder = new StringBuilder();
 						for (Resource resource : resources) {
@@ -108,10 +108,10 @@ public class SampleIntegrationApplicationTests {
 		return future.get(30, TimeUnit.SECONDS);
 	}
 
-	private Resource[] getResourcesWithContent() throws IOException {
+	private Resource[] getResourcesWithContent(File outputDir) throws IOException {
 		Resource[] candidates = ResourcePatternUtils
 				.getResourcePatternResolver(new DefaultResourceLoader())
-				.getResources("file:target/output/**");
+				.getResources("file:" + outputDir.getAbsolutePath() + "/**");
 		for (Resource candidate : candidates) {
 			if ((candidate.getFilename() != null
 					&& candidate.getFilename().endsWith(".writing"))

spring-boot-samples/spring-boot-sample-integration/src/test/java/sample/integration/producer/ProducerApplication.java

@@ -19,20 +19,32 @@ package sample.integration.producer;
 import java.io.File;
 import java.io.FileOutputStream;
 
-import org.springframework.boot.CommandLineRunner;
+import sample.integration.ServiceProperties;
+
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.SpringApplication;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Configuration;
 
 @Configuration
-public class ProducerApplication implements CommandLineRunner {
+@EnableConfigurationProperties(ServiceProperties.class)
+public class ProducerApplication implements ApplicationRunner {
+
+	private final ServiceProperties serviceProperties;
+
+	public ProducerApplication(ServiceProperties serviceProperties) {
+		this.serviceProperties = serviceProperties;
+	}
 
 	@Override
-	public void run(String... args) throws Exception {
+	public void run(ApplicationArguments args) throws Exception {
-		new File("target/input").mkdirs();
+		this.serviceProperties.getInputDir().mkdirs();
-		if (args.length > 0) {
+		if (args.getNonOptionArgs().size() > 0) {
 			FileOutputStream stream = new FileOutputStream(
-					"target/input/data" + System.currentTimeMillis() + ".txt");
+					new File(this.serviceProperties.getInputDir(),
-			for (String arg : args) {
+							"data" + System.currentTimeMillis() + ".txt"));
+			for (String arg : args.getNonOptionArgs()) {
 				stream.write(arg.getBytes());
 			}
 			stream.flush();

spring-boot-samples/spring-boot-sample-parent-context/src/main/java/sample/parent/SampleParentContextApplication.java

@@ -16,7 +16,6 @@
 
 package sample.parent;
 
-import java.io.File;
 import java.util.function.Consumer;
 
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -33,7 +32,6 @@ import org.springframework.integration.file.FileReadingMessageSource;
 import org.springframework.integration.file.FileWritingMessageHandler;
 
 @SpringBootApplication
-@EnableConfigurationProperties(ServiceProperties.class)
 public class SampleParentContextApplication {
 
 	public static void main(String[] args) throws Exception {
@@ -42,12 +40,19 @@ public class SampleParentContextApplication {
 	}
 
 	@EnableAutoConfiguration
+	@EnableConfigurationProperties(ServiceProperties.class)
 	protected static class Parent {
 
+		private final ServiceProperties serviceProperties;
+
+		public Parent(ServiceProperties serviceProperties) {
+			this.serviceProperties = serviceProperties;
+		}
+
 		@Bean
 		public FileReadingMessageSource fileReader() {
 			FileReadingMessageSource reader = new FileReadingMessageSource();
-			reader.setDirectory(new File("target/input"));
+			reader.setDirectory(this.serviceProperties.getInputDir());
 			return reader;
 		}
 
@@ -64,7 +69,7 @@ public class SampleParentContextApplication {
 		@Bean
 		public FileWritingMessageHandler fileWriter() {
 			FileWritingMessageHandler writer = new FileWritingMessageHandler(
-					new File("target/output"));
+					this.serviceProperties.getOutputDir());
 			writer.setExpectReply(false);
 			return writer;
 		}

spring-boot-samples/spring-boot-sample-parent-context/src/main/java/sample/parent/ServiceProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@
 
 package sample.parent;
 
+import java.io.File;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.jmx.export.annotation.ManagedAttribute;
 import org.springframework.jmx.export.annotation.ManagedResource;
@@ -26,6 +28,10 @@ public class ServiceProperties {
 
 	private String greeting = "Hello";
 
+	private File inputDir;
+
+	private File outputDir;
+
 	@ManagedAttribute
 	public String getGreeting() {
 		return this.greeting;
@@ -35,4 +41,20 @@ public class ServiceProperties {
 		this.greeting = greeting;
 	}
 
+	public File getInputDir() {
+		return this.inputDir;
+	}
+
+	public void setInputDir(File inputDir) {
+		this.inputDir = inputDir;
+	}
+
+	public File getOutputDir() {
+		return this.outputDir;
+	}
+
+	public void setOutputDir(File outputDir) {
+		this.outputDir = outputDir;
+	}
+
 }

spring-boot-samples/spring-boot-sample-parent-context/src/main/resources/application.properties

@@ -1 +1,3 @@
 service.greeting=Hello
+service.input-dir=input
+service.output-dir=output

spring-boot-samples/spring-boot-sample-parent-context/src/test/java/sample/parent/consumer/SampleIntegrationParentApplicationTests.java

@@ -16,11 +16,12 @@
 
 package sample.parent.consumer;
 
+import java.io.File;
 import java.io.IOException;
 
-import org.junit.AfterClass;
+import org.junit.Rule;
-import org.junit.BeforeClass;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import sample.parent.SampleParentContextApplication;
 import sample.parent.producer.ProducerApplication;
 
@@ -41,34 +42,41 @@ import static org.junit.Assert.fail;
  */
 public class SampleIntegrationParentApplicationTests {
 
-	private static ConfigurableApplicationContext context;
+	@Rule
-
+	public final TemporaryFolder temp = new TemporaryFolder();
-	@BeforeClass
-	public static void start() {
-		context = SpringApplication.run(SampleParentContextApplication.class);
-	}
-
-	@AfterClass
-	public static void stop() {
-		if (context != null) {
-			context.close();
-		}
-	}
 
 	@Test
 	public void testVanillaExchange() throws Exception {
-		SpringApplication.run(ProducerApplication.class, "World");
+		File inputDir = new File(this.temp.getRoot(), "input");
-		awaitOutputContaining("Hello World");
+		File outputDir = new File(this.temp.getRoot(), "output");
+		ConfigurableApplicationContext app = SpringApplication.run(
+				SampleParentContextApplication.class, "--service.input-dir=" + inputDir,
+				"--service.output-dir=" + outputDir);
+		try {
+			ConfigurableApplicationContext producer = SpringApplication.run(
+					ProducerApplication.class, "--service.input-dir=" + inputDir,
+					"--service.output-dir=" + outputDir, "World");
+			try {
+				awaitOutputContaining(outputDir, "Hello World");
+			}
+			finally {
+				producer.close();
+			}
+		}
+		finally {
+			app.close();
+		}
 	}
 
-	private void awaitOutputContaining(String requiredContents) throws Exception {
+	private void awaitOutputContaining(File outputDir, String requiredContents)
+			throws Exception {
 		long endTime = System.currentTimeMillis() + 30000;
 		String output = null;
 		while (System.currentTimeMillis() < endTime) {
-			Resource[] resources = findResources();
+			Resource[] resources = findResources(outputDir);
 			if (resources.length == 0) {
 				Thread.sleep(200);
-				resources = findResources();
+				resources = findResources(outputDir);
 			}
 			else {
 				output = readResources(resources);
@@ -85,10 +93,10 @@ public class SampleIntegrationParentApplicationTests {
 				+ "'. Output was '" + output + "'");
 	}
 
-	private Resource[] findResources() throws IOException {
+	private Resource[] findResources(File outputDir) throws IOException {
 		return ResourcePatternUtils
 				.getResourcePatternResolver(new DefaultResourceLoader())
-				.getResources("file:target/output/*.txt");
+				.getResources("file:" + outputDir.getAbsolutePath() + "/*.txt");
 	}
 
 	private String readResources(Resource[] resources) throws IOException {

spring-boot-samples/spring-boot-sample-parent-context/src/test/java/sample/parent/producer/ProducerApplication.java

@@ -19,20 +19,32 @@ package sample.parent.producer;
 import java.io.File;
 import java.io.FileOutputStream;
 
-import org.springframework.boot.CommandLineRunner;
+import sample.parent.ServiceProperties;
+
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.SpringApplication;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Configuration;
 
 @Configuration
-public class ProducerApplication implements CommandLineRunner {
+@EnableConfigurationProperties(ServiceProperties.class)
+public class ProducerApplication implements ApplicationRunner {
+
+	private final ServiceProperties serviceProperties;
+
+	public ProducerApplication(ServiceProperties serviceProperties) {
+		this.serviceProperties = serviceProperties;
+	}
 
 	@Override
-	public void run(String... args) throws Exception {
+	public void run(ApplicationArguments args) throws Exception {
-		new File("target/input").mkdirs();
+		this.serviceProperties.getInputDir().mkdirs();
-		if (args.length > 0) {
+		if (args.getNonOptionArgs().size() > 0) {
 			FileOutputStream stream = new FileOutputStream(
-					"target/input/data" + System.currentTimeMillis() + ".txt");
+					new File(this.serviceProperties.getInputDir(),
-			for (String arg : args) {
+							"data" + System.currentTimeMillis() + ".txt"));
+			for (String arg : args.getNonOptionArgs()) {
 				stream.write(arg.getBytes());
 			}
 			stream.flush();

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/pom.xml

@@ -26,6 +26,11 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-test-support</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>net.bytebuddy</groupId>
 			<artifactId>byte-buddy</artifactId>

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/com/example/DevToolsTestApplication.java

@@ -25,7 +25,7 @@ public class DevToolsTestApplication {
 
 	public static void main(String[] args) {
 		new SpringApplicationBuilder(DevToolsTestApplication.class)
-				.listeners(new WebServerPortFileWriter("target/server.port")).run(args);
+				.listeners(new WebServerPortFileWriter(args[0])).run(args);
 	}
 
 }

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/AbstractApplicationLauncher.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2012-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.devtools.tests;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.springframework.util.FileSystemUtils;
+
+/**
+ * Base class for all {@link ApplicationLauncher} implementations.
+ *
+ * @author Andy Wilkinson
+ */
+abstract class AbstractApplicationLauncher implements ApplicationLauncher {
+
+	private final Directories directories;
+
+	AbstractApplicationLauncher(Directories directories) {
+		this.directories = directories;
+	}
+
+	protected final void copyApplicationTo(File location) throws IOException {
+		FileSystemUtils.deleteRecursively(location);
+		location.mkdirs();
+		FileSystemUtils.copyRecursively(
+				new File(this.directories.getTestClassesDirectory(), "com"),
+				new File(location, "com"));
+	}
+
+	protected final List<String> getDependencyJarPaths() {
+		return Stream.of(this.directories.getDependenciesDirectory().listFiles())
+				.map(File::getAbsolutePath).collect(Collectors.toList());
+	}
+
+	protected final Directories getDirectories() {
+		return this.directories;
+	}
+
+}

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/ApplicationLauncher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@
 
 package org.springframework.boot.devtools.tests;
 
+import java.io.File;
+
 /**
  * Launches an application with DevTools.
  *
@@ -23,6 +25,7 @@ package org.springframework.boot.devtools.tests;
  */
 public interface ApplicationLauncher {
 
-	LaunchedApplication launchApplication(JvmLauncher javaLauncher) throws Exception;
+	LaunchedApplication launchApplication(JvmLauncher javaLauncher, File serverPortFile)
+			throws Exception;
 
 }

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/DevToolsIntegrationTests.java

@@ -18,6 +18,8 @@ package org.springframework.boot.devtools.tests;
 
 import java.io.File;
 import java.io.FileReader;
+import java.io.IOException;
+import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -28,13 +30,16 @@ import net.bytebuddy.dynamic.DynamicType.Builder;
 import net.bytebuddy.implementation.FixedValue;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 import org.junit.runners.Parameterized.Parameters;
 
 import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.http.HttpStatus;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -50,9 +55,15 @@ import static org.assertj.core.api.Assertions.assertThat;
 @RunWith(Parameterized.class)
 public class DevToolsIntegrationTests {
 
+	@ClassRule
+	public static final TemporaryFolder temp = new TemporaryFolder();
+
+	private static final BuildOutput buildOutput = new BuildOutput(
+			DevToolsIntegrationTests.class);
+
 	private LaunchedApplication launchedApplication;
 
-	private final File serverPortFile = new File("target/server.port");
+	private final File serverPortFile;
 
 	private final ApplicationLauncher applicationLauncher;
 
@@ -61,14 +72,15 @@ public class DevToolsIntegrationTests {
 
 	public DevToolsIntegrationTests(ApplicationLauncher applicationLauncher) {
 		this.applicationLauncher = applicationLauncher;
+		this.serverPortFile = new File(
+				DevToolsIntegrationTests.buildOutput.getRootLocation(), "server.port");
 	}
 
 	@Before
 	public void launchApplication() throws Exception {
 		this.serverPortFile.delete();
-		System.out.println("Launching " + this.javaLauncher.getClass());
 		this.launchedApplication = this.applicationLauncher
-				.launchApplication(this.javaLauncher);
+				.launchApplication(this.javaLauncher, this.serverPortFile);
 	}
 
 	@After
@@ -205,13 +217,15 @@ public class DevToolsIntegrationTests {
 	}
 
 	private int awaitServerPort() throws Exception {
-		long end = System.currentTimeMillis() + 40000;
+		Duration timeToWait = Duration.ofSeconds(40);
+		long end = System.currentTimeMillis() + timeToWait.toMillis();
+		System.out.println("Reading server port from '" + this.serverPortFile + "'");
 		while (this.serverPortFile.length() == 0) {
-			System.out.println("Getting server port " + this.serverPortFile.length());
 			if (System.currentTimeMillis() > end) {
 				throw new IllegalStateException(String.format(
-						"server.port file was not written within 30 seconds. "
+						"server.port file '" + this.serverPortFile
-								+ "Application output:%n%s%s",
+								+ "' was not written within " + timeToWait.toMillis()
+								+ "ms. " + "Application output:%n%s%s",
 						FileCopyUtils.copyToString(new FileReader(
 								this.launchedApplication.getStandardOut())),
 						FileCopyUtils.copyToString(new FileReader(
@@ -234,10 +248,11 @@ public class DevToolsIntegrationTests {
 	}
 
 	@Parameters(name = "{0}")
-	public static Object[] parameters() {
+	public static Object[] parameters() throws IOException {
-		return new Object[] { new Object[] { new LocalApplicationLauncher() },
+		Directories directories = new Directories(buildOutput, temp);
-				new Object[] { new ExplodedRemoteApplicationLauncher() },
+		return new Object[] { new Object[] { new LocalApplicationLauncher(directories) },
-				new Object[] { new JarFileRemoteApplicationLauncher() } };
+				new Object[] { new ExplodedRemoteApplicationLauncher(directories) },
+				new Object[] { new JarFileRemoteApplicationLauncher(directories) } };
 	}
 
 	private static final class ControllerBuilder {

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/Directories.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2012-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.devtools.tests;
+
+import java.io.File;
+
+import org.junit.rules.TemporaryFolder;
+
+import org.springframework.boot.testsupport.BuildOutput;
+
+/**
+ * Various directories used by the {@link ApplicationLauncher ApplicationLaunchers}.
+ *
+ * @author Andy Wilkinson
+ */
+class Directories {
+
+	private final BuildOutput buildOutput;
+
+	private final TemporaryFolder temp;
+
+	Directories(BuildOutput buildOutput, TemporaryFolder temp) {
+		this.buildOutput = buildOutput;
+		this.temp = temp;
+	}
+
+	File getTestClassesDirectory() {
+		return this.buildOutput.getTestClassesLocation();
+	}
+
+	File getRemoteAppDirectory() {
+		return new File(this.temp.getRoot(), "remote");
+	}
+
+	File getDependenciesDirectory() {
+		return new File(this.buildOutput.getRootLocation(), "dependencies");
+	}
+
+	File getAppDirectory() {
+		return new File(this.temp.getRoot(), "app");
+	}
+
+}

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/ExplodedRemoteApplicationLauncher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@ import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StringUtils;
 
 /**
@@ -31,18 +30,17 @@ import org.springframework.util.StringUtils;
  */
 public class ExplodedRemoteApplicationLauncher extends RemoteApplicationLauncher {
 
+	public ExplodedRemoteApplicationLauncher(Directories directories) {
+		super(directories);
+	}
+
 	@Override
 	protected String createApplicationClassPath() throws Exception {
-		File appDirectory = new File("target/app");
+		File appDirectory = getDirectories().getAppDirectory();
-		FileSystemUtils.deleteRecursively(appDirectory);
+		copyApplicationTo(appDirectory);
-		appDirectory.mkdirs();
-		FileSystemUtils.copyRecursively(new File("target/test-classes/com"),
-				new File("target/app/com"));
 		List<String> entries = new ArrayList<>();
-		entries.add("target/app");
+		entries.add(appDirectory.getAbsolutePath());
-		for (File jar : new File("target/dependencies").listFiles()) {
+		entries.addAll(getDependencyJarPaths());
-			entries.add(jar.getAbsolutePath());
-		}
 		return StringUtils.collectionToDelimitedString(entries, File.pathSeparator);
 	}
 

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/JarFileRemoteApplicationLauncher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,7 +27,6 @@ import java.util.jar.JarOutputStream;
 import java.util.jar.Manifest;
 import java.util.zip.ZipEntry;
 
-import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StreamUtils;
 import org.springframework.util.StringUtils;
 
@@ -39,28 +38,24 @@ import org.springframework.util.StringUtils;
  */
 public class JarFileRemoteApplicationLauncher extends RemoteApplicationLauncher {
 
+	public JarFileRemoteApplicationLauncher(Directories directories) {
+		super(directories);
+	}
+
 	@Override
 	protected String createApplicationClassPath() throws Exception {
-		File appDirectory = new File("target/app");
+		File appDirectory = getDirectories().getAppDirectory();
-		if (appDirectory.isDirectory()
+		copyApplicationTo(appDirectory);
-				&& !FileSystemUtils.deleteRecursively(appDirectory.toPath())) {
-			throw new IllegalStateException(
-					"Failed to delete '" + appDirectory.getAbsolutePath() + "'");
-		}
-		appDirectory.mkdirs();
 		Manifest manifest = new Manifest();
 		manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
-		JarOutputStream output = new JarOutputStream(
+		File appJar = new File(appDirectory, "app.jar");
-				new FileOutputStream(new File(appDirectory, "app.jar")), manifest);
+		JarOutputStream output = new JarOutputStream(new FileOutputStream(appJar),
-		FileSystemUtils.copyRecursively(new File("target/test-classes/com"),
+				manifest);
-				new File("target/app/com"));
+		addToJar(output, appDirectory, appDirectory);
-		addToJar(output, new File("target/app/"), new File("target/app/"));
 		output.close();
 		List<String> entries = new ArrayList<>();
-		entries.add("target/app/app.jar");
+		entries.add(appJar.getAbsolutePath());
-		for (File jar : new File("target/dependencies").listFiles()) {
+		entries.addAll(getDependencyJarPaths());
-			entries.add(jar.getAbsolutePath());
-		}
 		String classpath = StringUtils.collectionToDelimitedString(entries,
 				File.pathSeparator);
 		return classpath;

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/JvmLauncher.java

@@ -27,6 +27,7 @@ import org.junit.rules.TestRule;
 import org.junit.runner.Description;
 import org.junit.runners.model.Statement;
 
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.StringUtils;
 
 /**
@@ -39,12 +40,15 @@ class JvmLauncher implements TestRule {
 
 	private static final Pattern NON_ALPHABET_PATTERN = Pattern.compile("[^A-Za-z]+");
 
+	private final BuildOutput buildOutput = new BuildOutput(getClass());
+
 	private File outputDirectory;
 
 	@Override
 	public Statement apply(Statement base, Description description) {
-		this.outputDirectory = new File("target/output/" + NON_ALPHABET_PATTERN
+		this.outputDirectory = new File(this.buildOutput.getRootLocation(),
-				.matcher(description.getMethodName()).replaceAll(""));
+				"output/" + NON_ALPHABET_PATTERN.matcher(description.getMethodName())
+						.replaceAll(""));
 		this.outputDirectory.mkdirs();
 		return base;
 	}

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/LocalApplicationLauncher.java

@@ -21,7 +21,6 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.springframework.boot.devtools.tests.JvmLauncher.LaunchedJvm;
-import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StringUtils;
 
 /**
@@ -29,28 +28,29 @@ import org.springframework.util.StringUtils;
  *
  * @author Andy Wilkinson
  */
-public class LocalApplicationLauncher implements ApplicationLauncher {
+public class LocalApplicationLauncher extends AbstractApplicationLauncher {
+
+	LocalApplicationLauncher(Directories directories) {
+		super(directories);
+	}
 
 	@Override
-	public LaunchedApplication launchApplication(JvmLauncher jvmLauncher)
+	public LaunchedApplication launchApplication(JvmLauncher jvmLauncher,
-			throws Exception {
+			File serverPortFile) throws Exception {
 		LaunchedJvm jvm = jvmLauncher.launch("local", createApplicationClassPath(),
-				"com.example.DevToolsTestApplication", "--server.port=0");
+				"com.example.DevToolsTestApplication", serverPortFile.getAbsolutePath(),
-		return new LaunchedApplication(new File("target/app"), jvm.getStandardOut(),
+				"--server.port=0");
-				jvm.getStandardError(), jvm.getProcess(), null, null);
+		return new LaunchedApplication(getDirectories().getAppDirectory(),
+				jvm.getStandardOut(), jvm.getStandardError(), jvm.getProcess(), null,
+				null);
 	}
 
 	protected String createApplicationClassPath() throws Exception {
-		File appDirectory = new File("target/app");
+		File appDirectory = getDirectories().getAppDirectory();
-		FileSystemUtils.deleteRecursively(appDirectory);
+		copyApplicationTo(appDirectory);
-		appDirectory.mkdirs();
-		FileSystemUtils.copyRecursively(new File("target/test-classes/com"),
-				new File("target/app/com"));
 		List<String> entries = new ArrayList<>();
-		entries.add("target/app");
+		entries.add(appDirectory.getAbsolutePath());
-		for (File jar : new File("target/dependencies").listFiles()) {
+		entries.addAll(getDependencyJarPaths());
-			entries.add(jar.getAbsolutePath());
-		}
 		return StringUtils.collectionToDelimitedString(entries, File.pathSeparator);
 	}
 

spring-boot-tests/spring-boot-integration-tests/spring-boot-devtools-tests/src/test/java/org/springframework/boot/devtools/tests/RemoteApplicationLauncher.java

@@ -25,7 +25,6 @@ import java.util.function.BiFunction;
 import org.springframework.boot.devtools.RemoteSpringApplication;
 import org.springframework.boot.devtools.tests.JvmLauncher.LaunchedJvm;
 import org.springframework.util.FileCopyUtils;
-import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StringUtils;
 
 /**
@@ -34,18 +33,23 @@ import org.springframework.util.StringUtils;
  *
  * @author Andy Wilkinson
  */
-abstract class RemoteApplicationLauncher implements ApplicationLauncher {
+abstract class RemoteApplicationLauncher extends AbstractApplicationLauncher {
+
+	RemoteApplicationLauncher(Directories directories) {
+		super(directories);
+	}
 
 	@Override
-	public LaunchedApplication launchApplication(JvmLauncher javaLauncher)
+	public LaunchedApplication launchApplication(JvmLauncher javaLauncher,
-			throws Exception {
+			File serverPortFile) throws Exception {
 		LaunchedJvm applicationJvm = javaLauncher.launch("app",
 				createApplicationClassPath(), "com.example.DevToolsTestApplication",
-				"--server.port=0", "--spring.devtools.remote.secret=secret");
+				serverPortFile.getAbsolutePath(), "--server.port=0",
-		int port = awaitServerPort(applicationJvm.getStandardOut());
+				"--spring.devtools.remote.secret=secret");
+		int port = awaitServerPort(applicationJvm.getStandardOut(), serverPortFile);
 		BiFunction<Integer, File, Process> remoteRestarter = getRemoteRestarter(
 				javaLauncher);
-		return new LaunchedApplication(new File("target/remote"),
+		return new LaunchedApplication(getDirectories().getRemoteAppDirectory(),
 				applicationJvm.getStandardOut(), applicationJvm.getStandardError(),
 				applicationJvm.getProcess(), remoteRestarter.apply(port, null),
 				remoteRestarter);
@@ -74,24 +78,18 @@ abstract class RemoteApplicationLauncher implements ApplicationLauncher {
 
 	private String createRemoteSpringApplicationClassPath(File classesDirectory)
 			throws Exception {
+		File remoteAppDirectory = getDirectories().getRemoteAppDirectory();
 		if (classesDirectory == null) {
-			File remoteDirectory = new File("target/remote");
+			copyApplicationTo(remoteAppDirectory);
-			FileSystemUtils.deleteRecursively(remoteDirectory);
-			remoteDirectory.mkdirs();
-			FileSystemUtils.copyRecursively(new File("target/test-classes/com"),
-					new File("target/remote/com"));
 		}
 		List<String> entries = new ArrayList<>();
-		entries.add("target/remote");
+		entries.add(remoteAppDirectory.getAbsolutePath());
-		for (File jar : new File("target/dependencies").listFiles()) {
+		entries.addAll(getDependencyJarPaths());
-			entries.add(jar.getAbsolutePath());
-		}
 		return StringUtils.collectionToDelimitedString(entries, File.pathSeparator);
 	}
 
-	private int awaitServerPort(File standardOut) throws Exception {
+	private int awaitServerPort(File standardOut, File serverPortFile) throws Exception {
 		long end = System.currentTimeMillis() + 30000;
-		File serverPortFile = new File("target/server.port");
 		while (serverPortFile.length() == 0) {
 			if (System.currentTimeMillis() > end) {
 				throw new IllegalStateException(String.format(

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/pom.xml

@@ -24,6 +24,11 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-test-support</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>com.samskivert</groupId>
 			<artifactId>jmustache</artifactId>

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/com/example/ResourceHandlingApplication.java

@@ -41,7 +41,7 @@ public class ResourceHandlingApplication {
 	public static void main(String[] args) {
 		new SpringApplicationBuilder(ResourceHandlingApplication.class)
 				.properties("server.port:0")
-				.listeners(new WebServerPortFileWriter("target/server.port")).run(args);
+				.listeners(new WebServerPortFileWriter(args[0])).run(args);
 	}
 
 	@Bean

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/AbstractApplicationLauncher.java

@@ -26,6 +26,7 @@ import java.util.List;
 
 import org.junit.rules.ExternalResource;
 
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.util.StreamUtils;
 import org.springframework.util.StringUtils;
@@ -40,12 +41,16 @@ abstract class AbstractApplicationLauncher extends ExternalResource {
 
 	private final ApplicationBuilder applicationBuilder;
 
+	private final BuildOutput buildOutput;
+
 	private Process process;
 
 	private int httpPort;
 
-	protected AbstractApplicationLauncher(ApplicationBuilder applicationBuilder) {
+	protected AbstractApplicationLauncher(ApplicationBuilder applicationBuilder,
+			BuildOutput buildOutput) {
 		this.applicationBuilder = applicationBuilder;
+		this.buildOutput = buildOutput;
 	}
 
 	@Override
@@ -62,7 +67,7 @@ abstract class AbstractApplicationLauncher extends ExternalResource {
 		return this.httpPort;
 	}
 
-	protected abstract List<String> getArguments(File archive);
+	protected abstract List<String> getArguments(File archive, File serverPortFile);
 
 	protected abstract File getWorkingDirectory();
 
@@ -70,14 +75,12 @@ abstract class AbstractApplicationLauncher extends ExternalResource {
 
 	private Process startApplication() throws Exception {
 		File workingDirectory = getWorkingDirectory();
-		File serverPortFile = (workingDirectory != null)
+		File serverPortFile = new File(this.buildOutput.getRootLocation(), "server.port");
-				? new File(workingDirectory, "target/server.port")
-				: new File("target/server.port");
 		serverPortFile.delete();
 		File archive = this.applicationBuilder.buildApplication();
 		List<String> arguments = new ArrayList<>();
 		arguments.add(System.getProperty("java.home") + "/bin/java");
-		arguments.addAll(getArguments(archive));
+		arguments.addAll(getArguments(archive, serverPortFile));
 		ProcessBuilder processBuilder = new ProcessBuilder(
 				StringUtils.toStringArray(arguments));
 		if (workingDirectory != null) {

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/AbstractEmbeddedServletContainerIntegrationTests.java

@@ -26,6 +26,7 @@ import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.rules.TemporaryFolder;
 
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.util.StringUtils;
 import org.springframework.web.client.ResponseErrorHandler;
@@ -48,6 +49,9 @@ public abstract class AbstractEmbeddedServletContainerIntegrationTests {
 
 	};
 
+	public static final BuildOutput buildOutput = new BuildOutput(
+			AbstractEmbeddedServletContainerIntegrationTests.class);
+
 	@Rule
 	public final AbstractApplicationLauncher launcher;
 
@@ -70,8 +74,9 @@ public abstract class AbstractEmbeddedServletContainerIntegrationTests {
 		for (Class<? extends AbstractApplicationLauncher> launcherClass : applicationLaunchers) {
 			try {
 				AbstractApplicationLauncher launcher = launcherClass
-						.getDeclaredConstructor(ApplicationBuilder.class)
+						.getDeclaredConstructor(ApplicationBuilder.class,
-						.newInstance(applicationBuilder);
+								BuildOutput.class)
+						.newInstance(applicationBuilder, buildOutput);
 				String name = StringUtils.capitalize(container) + ": "
 						+ launcher.getDescription(packaging);
 				parameters.add(new Object[] { name, launcher });

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/BootRunApplicationLauncher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@ import java.util.List;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StreamUtils;
@@ -40,14 +41,16 @@ import org.springframework.util.StringUtils;
  */
 class BootRunApplicationLauncher extends AbstractApplicationLauncher {
 
-	private final File exploded = new File("target/run");
+	private final File exploded;
 
-	BootRunApplicationLauncher(ApplicationBuilder applicationBuilder) {
+	BootRunApplicationLauncher(ApplicationBuilder applicationBuilder,
-		super(applicationBuilder);
+			BuildOutput buildOutput) {
+		super(applicationBuilder, buildOutput);
+		this.exploded = new File(buildOutput.getRootLocation(), "run");
 	}
 
 	@Override
-	protected List<String> getArguments(File archive) {
+	protected List<String> getArguments(File archive, File serverPortFile) {
 		try {
 			explodeArchive(archive);
 			deleteLauncherClasses();
@@ -64,7 +67,8 @@ class BootRunApplicationLauncher extends AbstractApplicationLauncher {
 			return Arrays.asList("-cp",
 					StringUtils.collectionToDelimitedString(classpath,
 							File.pathSeparator),
-					"com.example.ResourceHandlingApplication");
+					"com.example.ResourceHandlingApplication",
+					serverPortFile.getAbsolutePath());
 		}
 		catch (IOException ex) {
 			throw new RuntimeException(ex);
@@ -76,12 +80,12 @@ class BootRunApplicationLauncher extends AbstractApplicationLauncher {
 	}
 
 	private File populateTargetClasses(File archive) throws IOException {
-		File targetClasses = new File(this.exploded, "target/classes");
+		File builtClasses = new File(this.exploded, "built/classes");
-		targetClasses.mkdirs();
+		builtClasses.mkdirs();
 		File source = new File(this.exploded, getClassesPath(archive));
-		FileSystemUtils.copyRecursively(source, targetClasses);
+		FileSystemUtils.copyRecursively(source, builtClasses);
 		FileSystemUtils.deleteRecursively(source);
-		return targetClasses;
+		return builtClasses;
 	}
 
 	private File populateDependencies(File archive) throws IOException {

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/ExplodedApplicationLauncher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,9 +22,11 @@ import java.io.IOException;
 import java.util.Arrays;
 import java.util.Enumeration;
 import java.util.List;
+import java.util.function.Supplier;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StreamUtils;
 
@@ -36,15 +38,17 @@ import org.springframework.util.StreamUtils;
  */
 class ExplodedApplicationLauncher extends AbstractApplicationLauncher {
 
-	private final File exploded = new File("target/exploded");
+	private final Supplier<File> exploded;
 
-	ExplodedApplicationLauncher(ApplicationBuilder applicationBuilder) {
+	ExplodedApplicationLauncher(ApplicationBuilder applicationBuilder,
-		super(applicationBuilder);
+			BuildOutput buildOutput) {
+		super(applicationBuilder, buildOutput);
+		this.exploded = () -> new File(buildOutput.getRootLocation(), "exploded");
 	}
 
 	@Override
 	protected File getWorkingDirectory() {
-		return this.exploded;
+		return this.exploded.get();
 	}
 
 	@Override
@@ -53,13 +57,14 @@ class ExplodedApplicationLauncher extends AbstractApplicationLauncher {
 	}
 
 	@Override
-	protected List<String> getArguments(File archive) {
+	protected List<String> getArguments(File archive, File serverPortFile) {
 		String mainClass = (archive.getName().endsWith(".war")
 				? "org.springframework.boot.loader.WarLauncher"
 				: "org.springframework.boot.loader.JarLauncher");
 		try {
 			explodeArchive(archive);
-			return Arrays.asList("-cp", this.exploded.getAbsolutePath(), mainClass);
+			return Arrays.asList("-cp", this.exploded.get().getAbsolutePath(), mainClass,
+					serverPortFile.getAbsolutePath());
 		}
 		catch (IOException ex) {
 			throw new RuntimeException(ex);
@@ -67,12 +72,12 @@ class ExplodedApplicationLauncher extends AbstractApplicationLauncher {
 	}
 
 	private void explodeArchive(File archive) throws IOException {
-		FileSystemUtils.deleteRecursively(this.exploded);
+		FileSystemUtils.deleteRecursively(this.exploded.get());
 		JarFile jarFile = new JarFile(archive);
 		Enumeration<JarEntry> entries = jarFile.entries();
 		while (entries.hasMoreElements()) {
 			JarEntry jarEntry = entries.nextElement();
-			File extracted = new File(this.exploded, jarEntry.getName());
+			File extracted = new File(this.exploded.get(), jarEntry.getName());
 			if (jarEntry.isDirectory()) {
 				extracted.mkdirs();
 			}

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/IdeApplicationLauncher.java

@@ -27,6 +27,7 @@ import java.util.List;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
+import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.util.FileSystemUtils;
 import org.springframework.util.StreamUtils;
@@ -40,10 +41,12 @@ import org.springframework.util.StringUtils;
  */
 class IdeApplicationLauncher extends AbstractApplicationLauncher {
 
-	private final File exploded = new File("target/the+ide application");
+	private final File exploded;
 
-	IdeApplicationLauncher(ApplicationBuilder applicationBuilder) {
+	IdeApplicationLauncher(ApplicationBuilder applicationBuilder,
-		super(applicationBuilder);
+			BuildOutput buildOutput) {
+		super(applicationBuilder, buildOutput);
+		this.exploded = new File(buildOutput.getRootLocation(), "the+ide application");
 	}
 
 	@Override
@@ -57,18 +60,18 @@ class IdeApplicationLauncher extends AbstractApplicationLauncher {
 	}
 
 	@Override
-	protected List<String> getArguments(File archive) {
+	protected List<String> getArguments(File archive, File serverPortFile) {
 		try {
 			explodeArchive(archive, this.exploded);
 			deleteLauncherClasses();
-			File targetClasses = populateTargetClasses(archive);
+			File builtClasses = populateBuiltClasses(archive);
 			File dependencies = populateDependencies(archive);
 			File resourcesProject = explodedResourcesProject(dependencies);
 			if (archive.getName().endsWith(".war")) {
 				populateSrcMainWebapp();
 			}
 			List<String> classpath = new ArrayList<>();
-			classpath.add(targetClasses.getAbsolutePath());
+			classpath.add(builtClasses.getAbsolutePath());
 			for (File dependency : dependencies.listFiles()) {
 				classpath.add(dependency.getAbsolutePath());
 			}
@@ -76,20 +79,21 @@ class IdeApplicationLauncher extends AbstractApplicationLauncher {
 			return Arrays.asList("-cp",
 					StringUtils.collectionToDelimitedString(classpath,
 							File.pathSeparator),
-					"com.example.ResourceHandlingApplication");
+					"com.example.ResourceHandlingApplication",
+					serverPortFile.getAbsolutePath());
 		}
 		catch (IOException ex) {
 			throw new RuntimeException(ex);
 		}
 	}
 
-	private File populateTargetClasses(File archive) throws IOException {
+	private File populateBuiltClasses(File archive) throws IOException {
-		File targetClasses = new File(this.exploded, "target/classes");
+		File builtClasses = new File(this.exploded, "built/classes");
-		targetClasses.mkdirs();
+		builtClasses.mkdirs();
 		File source = new File(this.exploded, getClassesPath(archive));
-		FileSystemUtils.copyRecursively(source, targetClasses);
+		FileSystemUtils.copyRecursively(source, builtClasses);
 		FileSystemUtils.deleteRecursively(source);
-		return targetClasses;
+		return builtClasses;
 	}
 
 	private File populateDependencies(File archive) throws IOException {
@@ -108,7 +112,7 @@ class IdeApplicationLauncher extends AbstractApplicationLauncher {
 
 	private File explodedResourcesProject(File dependencies) throws IOException {
 		File resourcesProject = new File(this.exploded,
-				"resources-project/target/classes");
+				"resources-project/built/classes");
 		File resourcesJar = new File(dependencies, "resources-1.0.jar");
 		explodeArchive(resourcesJar, resourcesProject);
 		resourcesJar.delete();

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/PackagedApplicationLauncher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,8 @@ import java.io.File;
 import java.util.Arrays;
 import java.util.List;
 
+import org.springframework.boot.testsupport.BuildOutput;
+
 /**
  * {@link AbstractApplicationLauncher} that launches a packaged Spring Boot application
  * using {@code java -jar}.
@@ -28,8 +30,9 @@ import java.util.List;
  */
 class PackagedApplicationLauncher extends AbstractApplicationLauncher {
 
-	PackagedApplicationLauncher(ApplicationBuilder applicationBuilder) {
+	PackagedApplicationLauncher(ApplicationBuilder applicationBuilder,
-		super(applicationBuilder);
+			BuildOutput buildOutput) {
+		super(applicationBuilder, buildOutput);
 	}
 
 	@Override
@@ -43,8 +46,9 @@ class PackagedApplicationLauncher extends AbstractApplicationLauncher {
 	}
 
 	@Override
-	protected List<String> getArguments(File archive) {
+	protected List<String> getArguments(File archive, File serverPortFile) {
-		return Arrays.asList("-jar", archive.getAbsolutePath());
+		return Arrays.asList("-jar", archive.getAbsolutePath(),
+				serverPortFile.getAbsolutePath());
 	}
 
 }