Allow build info properties to be excluded

Update Maven and Gradle plugins to allow build info properties to be
excluded.

Prior to this commit, the `BuildPropertiesWriter` would fail with an
NPE if the group, artifact, name or version properties were `null`.

This was specifically problematic with the Gradle plugin, since its
DSL allows `null` properties which would either be passed to the writer
or, in the case of `artifact`, converted into a string value of
"unspecified".

See gh-27412

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/asciidoc/integrating-with-actuator.adoc

@@ -30,8 +30,7 @@ By default, the generated build information is derived from the project:
 | Property | Default value
 
 | `build.artifact`
-| The base name of the `bootJar` or `bootWar` task, or `unspecified` if no such task
-  exists
+| The base name of the `bootJar` or `bootWar` task
 
 | `build.group`
 | The group of the project
@@ -61,6 +60,8 @@ include::../gradle/integrating-with-actuator/build-info-custom-values.gradle[tag
 include::../gradle/integrating-with-actuator/build-info-custom-values.gradle.kts[tags=custom-values]
 ----
 
+NOTE: To omit any of the default properties from the generated build information, set its value to `null`.
+
 The default value for `build.time` is the instant at which the project is being built.
 A side-effect of this is that the task will never be up-to-date.
 As a result, builds will take longer as more tasks, including the project's tests, will have to be executed.

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/buildinfo/BuildInfo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 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.
@@ -60,12 +60,9 @@ public class BuildInfo extends ConventionTask {
 	public void generateBuildProperties() {
 		try {
 			new BuildPropertiesWriter(new File(getDestinationDir(), "build-info.properties"))
-					.writeBuildProperties(
-							new ProjectDetails(this.properties.getGroup(),
-									(this.properties.getArtifact() != null) ? this.properties.getArtifact()
-											: "unspecified",
-									this.properties.getVersion(), this.properties.getName(), this.properties.getTime(),
-									coerceToStringValues(this.properties.getAdditional())));
+					.writeBuildProperties(new ProjectDetails(this.properties.getGroup(), this.properties.getArtifact(),
+							this.properties.getVersion(), this.properties.getName(), this.properties.getTime(),
+							coerceToStringValues(this.properties.getAdditional())));
 		}
 		catch (IOException ex) {
 			throw new TaskExecutionException(this, ex);

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoIntegrationTests.java

@@ -39,6 +39,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Integration tests for the {@link BuildInfo} task.
  *
  * @author Andy Wilkinson
+ * @author Vedran Pavic
  */
 @GradleCompatibility(configurationCache = true)
 class BuildInfoIntegrationTests {
@@ -50,8 +51,8 @@ class BuildInfoIntegrationTests {
 		assertThat(this.gradleBuild.build("buildInfo").task(":buildInfo").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
 		Properties buildInfoProperties = buildInfoProperties();
 		assertThat(buildInfoProperties).containsKey("build.time");
-		assertThat(buildInfoProperties).containsEntry("build.artifact", "unspecified");
-		assertThat(buildInfoProperties).containsEntry("build.group", "");
+		assertThat(buildInfoProperties).doesNotContainKey("build.artifact");
+		assertThat(buildInfoProperties).doesNotContainKey("build.group");
 		assertThat(buildInfoProperties).containsEntry("build.name", this.gradleBuild.getProjectDir().getName());
 		assertThat(buildInfoProperties).containsEntry("build.version", "unspecified");
 	}
@@ -122,6 +123,26 @@ class BuildInfoIntegrationTests {
 		assertThat(firstHash).isEqualTo(secondHash);
 	}
 
+	@TestTemplate
+	void removePropertiesUsingNulls() {
+		assertThat(this.gradleBuild.build("buildInfo").task(":buildInfo").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		Properties buildInfoProperties = buildInfoProperties();
+		assertThat(buildInfoProperties).doesNotContainKey("build.group");
+		assertThat(buildInfoProperties).doesNotContainKey("build.artifact");
+		assertThat(buildInfoProperties).doesNotContainKey("build.version");
+		assertThat(buildInfoProperties).doesNotContainKey("build.name");
+	}
+
+	@TestTemplate
+	void removePropertiesUsingEmptyStrings() {
+		assertThat(this.gradleBuild.build("buildInfo").task(":buildInfo").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		Properties buildInfoProperties = buildInfoProperties();
+		assertThat(buildInfoProperties).doesNotContainKey("build.group");
+		assertThat(buildInfoProperties).doesNotContainKey("build.artifact");
+		assertThat(buildInfoProperties).doesNotContainKey("build.version");
+		assertThat(buildInfoProperties).doesNotContainKey("build.name");
+	}
+
 	private Properties buildInfoProperties() {
 		File file = new File(this.gradleBuild.getProjectDir(), "build/build-info.properties");
 		assertThat(file).isFile();

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoTests.java

@@ -38,6 +38,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@link BuildInfo}.
  *
  * @author Andy Wilkinson
+ * @author Vedran Pavic
  */
 @ClassPathExclusions("kotlin-daemon-client-*")
 class BuildInfoTests {
@@ -49,8 +50,8 @@ class BuildInfoTests {
 	void basicExecution() {
 		Properties properties = buildInfoProperties(createTask(createProject("test")));
 		assertThat(properties).containsKey("build.time");
-		assertThat(properties).containsEntry("build.artifact", "unspecified");
-		assertThat(properties).containsEntry("build.group", "");
+		assertThat(properties).doesNotContainKey("build.artifact");
+		assertThat(properties).doesNotContainKey("build.group");
 		assertThat(properties).containsEntry("build.name", "test");
 		assertThat(properties).containsEntry("build.version", "unspecified");
 	}
@@ -62,6 +63,20 @@ class BuildInfoTests {
 		assertThat(buildInfoProperties(task)).containsEntry("build.artifact", "custom");
 	}
 
+	@Test
+	void artifactCanBeRemovedFromPropertiesUsingNull() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setArtifact(null);
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.artifact");
+	}
+
+	@Test
+	void artifactCanBeRemovedFromPropertiesUsingEmptyString() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setArtifact("");
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.artifact");
+	}
+
 	@Test
 	void projectGroupIsReflectedInProperties() {
 		BuildInfo task = createTask(createProject("test"));
@@ -76,6 +91,20 @@ class BuildInfoTests {
 		assertThat(buildInfoProperties(task)).containsEntry("build.group", "com.example");
 	}
 
+	@Test
+	void groupCanBeRemovedFromPropertiesUsingNull() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setGroup(null);
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.group");
+	}
+
+	@Test
+	void groupCanBeRemovedFromPropertiesUsingEmptyString() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setGroup("");
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.group");
+	}
+
 	@Test
 	void customNameIsReflectedInProperties() {
 		BuildInfo task = createTask(createProject("test"));
@@ -83,6 +112,20 @@ class BuildInfoTests {
 		assertThat(buildInfoProperties(task)).containsEntry("build.name", "Example");
 	}
 
+	@Test
+	void nameCanBeRemovedFromPropertiesUsingNull() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setName(null);
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.name");
+	}
+
+	@Test
+	void nameCanBeRemovedFromPropertiesUsingEmptyString() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setName("");
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.name");
+	}
+
 	@Test
 	void projectVersionIsReflectedInProperties() {
 		BuildInfo task = createTask(createProject("test"));
@@ -97,6 +140,20 @@ class BuildInfoTests {
 		assertThat(buildInfoProperties(task)).containsEntry("build.version", "2.3.4");
 	}
 
+	@Test
+	void versionCanBeRemovedFromPropertiesUsingNull() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setVersion(null);
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.version");
+	}
+
+	@Test
+	void versionCanBeRemovedFromPropertiesUsingEmptyString() {
+		BuildInfo task = createTask(createProject("test"));
+		task.getProperties().setVersion("");
+		assertThat(buildInfoProperties(task)).doesNotContainKey("build.version");
+	}
+
 	@Test
 	void timeIsSetInProperties() {
 		BuildInfo task = createTask(createProject("test"));

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoIntegrationTests-removePropertiesUsingEmptyStrings.gradle

@@ -0,0 +1,16 @@
+plugins {
+	id 'org.springframework.boot' version '{version}' apply false
+}
+
+group = 'foo'
+version = '0.1.0'
+
+task buildInfo(type: org.springframework.boot.gradle.tasks.buildinfo.BuildInfo) {
+	destinationDir project.buildDir
+	properties {
+		group = ''
+		artifact = ''
+		version = ''
+		name = ''
+	}
+}

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoIntegrationTests-removePropertiesUsingNulls.gradle

@@ -0,0 +1,16 @@
+plugins {
+	id 'org.springframework.boot' version '{version}' apply false
+}
+
+group = 'foo'
+version = '0.1.0'
+
+task buildInfo(type: org.springframework.boot.gradle.tasks.buildinfo.BuildInfo) {
+	destinationDir project.buildDir
+	properties {
+		group = null
+		artifact = null
+		version = null
+		name = null
+	}
+}

spring-boot-project/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/BuildPropertiesWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 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 java.util.Map;
 import java.util.Properties;
 
 import org.springframework.core.CollectionFactory;
+import org.springframework.util.StringUtils;
 
 /**
  * A {@code BuildPropertiesWriter} writes the {@code build-info.properties} for
@@ -32,6 +33,7 @@ import org.springframework.core.CollectionFactory;
  *
  * @author Andy Wilkinson
  * @author Stephane Nicoll
+ * @author Vedran Pavic
  * @since 1.0.0
  */
 public final class BuildPropertiesWriter {
@@ -71,10 +73,18 @@ public final class BuildPropertiesWriter {
 
 	protected Properties createBuildInfo(ProjectDetails project) {
 		Properties properties = CollectionFactory.createSortedProperties(true);
-		properties.put("build.group", project.getGroup());
-		properties.put("build.artifact", project.getArtifact());
-		properties.put("build.name", project.getName());
-		properties.put("build.version", project.getVersion());
+		if (StringUtils.hasText(project.getGroup())) {
+			properties.put("build.group", project.getGroup());
+		}
+		if (StringUtils.hasText(project.getArtifact())) {
+			properties.put("build.artifact", project.getArtifact());
+		}
+		if (StringUtils.hasText(project.getName())) {
+			properties.put("build.name", project.getName());
+		}
+		if (StringUtils.hasText(project.getVersion())) {
+			properties.put("build.version", project.getVersion());
+		}
 		if (project.getTime() != null) {
 			properties.put("build.time", DateTimeFormatter.ISO_INSTANT.format(project.getTime()));
 		}

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/BuildInfoIntegrationTests.java

@@ -35,6 +35,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Integration tests for the Maven plugin's build info support.
  *
  * @author Andy Wilkinson
+ * @author Vedran Pavic
  */
 @ExtendWith(MavenBuildExtension.class)
 class BuildInfoIntegrationTests {
@@ -63,6 +64,14 @@ class BuildInfoIntegrationTests {
 				.hasBuildTime("2019-07-08T08:00:00Z")));
 	}
 
+	@TestTemplate
+	void generatedBuildInfoUsesCustomBuildProperties(MavenBuild mavenBuild) {
+		mavenBuild.project("build-info-custom-build-properties")
+				.execute(buildInfo((buildInfo) -> assertThat(buildInfo).hasBuildGroup("test-group")
+						.hasBuildArtifact("test-artifact").hasBuildName("test-name").hasBuildVersion("test-version")
+						.containsBuildTime()));
+	}
+
 	@TestTemplate
 	void generatedBuildInfoReproducible(MavenBuild mavenBuild) {
 		mavenBuild.project("build-info-reproducible")
@@ -89,6 +98,13 @@ class BuildInfoIntegrationTests {
 				.doesNotContainBuildTime()));
 	}
 
+	@TestTemplate
+	void whenBuildPropertiesAreEmptyTheyDoNotAppearInGeneratedBuildInfo(MavenBuild mavenBuild) {
+		mavenBuild.project("build-info-disable-build-properties").execute(
+				buildInfo((buildInfo) -> assertThat(buildInfo).doesNotContainBuildGroup().doesNotContainBuildArtifact()
+						.doesNotContainBuildName().doesNotContainBuildVersion().containsBuildTime()));
+	}
+
 	private ProjectCallback buildInfo(Consumer<AssertProvider<BuildInfoAssert>> buildInfo) {
 		return buildInfo("target/classes/META-INF/build-info.properties", buildInfo);
 	}
@@ -130,18 +146,34 @@ class BuildInfoIntegrationTests {
 			return containsEntry("build.group", expected);
 		}
 
+		BuildInfoAssert doesNotContainBuildGroup() {
+			return doesNotContainKey("build.group");
+		}
+
 		BuildInfoAssert hasBuildArtifact(String expected) {
 			return containsEntry("build.artifact", expected);
 		}
 
+		BuildInfoAssert doesNotContainBuildArtifact() {
+			return doesNotContainKey("build.artifact");
+		}
+
 		BuildInfoAssert hasBuildName(String expected) {
 			return containsEntry("build.name", expected);
 		}
 
+		BuildInfoAssert doesNotContainBuildName() {
+			return doesNotContainKey("build.name");
+		}
+
 		BuildInfoAssert hasBuildVersion(String expected) {
 			return containsEntry("build.version", expected);
 		}
 
+		BuildInfoAssert doesNotContainBuildVersion() {
+			return doesNotContainKey("build.version");
+		}
+
 		BuildInfoAssert containsBuildTime() {
 			return containsKey("build.time");
 		}

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/build-info-custom-build-properties/pom.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>org.springframework.boot.maven.it</groupId>
+	<artifactId>build-info-custom-build-properties</artifactId>
+	<version>0.0.1.BUILD-SNAPSHOT</version>
+	<name>Generate build info with custom build properties</name>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>@java.version@</maven.compiler.source>
+		<maven.compiler.target>@java.version@</maven.compiler.target>
+	</properties>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>@project.groupId@</groupId>
+				<artifactId>@project.artifactId@</artifactId>
+				<version>@project.version@</version>
+				<executions>
+					<execution>
+						<configuration>
+							<group>test-group</group>
+							<artifact>test-artifact</artifact>
+							<version>test-version</version>
+							<name>test-name</name>
+						</configuration>
+						<goals>
+							<goal>build-info</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/build-info-custom-build-properties/src/main/java/org/test/SampleApplication.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2012-2021 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
+ *
+ *      https://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.test;
+
+public class SampleApplication {
+
+	public static void main(String[] args) {
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/build-info-disable-build-properties/pom.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>org.springframework.boot.maven.it</groupId>
+	<artifactId>build-info-disable-build-properties</artifactId>
+	<version>0.0.1.BUILD-SNAPSHOT</version>
+	<name>Generate build info with disabled build properties</name>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>@java.version@</maven.compiler.source>
+		<maven.compiler.target>@java.version@</maven.compiler.target>
+	</properties>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>@project.groupId@</groupId>
+				<artifactId>@project.artifactId@</artifactId>
+				<version>@project.version@</version>
+				<executions>
+					<execution>
+						<configuration>
+							<group>off</group>
+							<artifact>off</artifact>
+							<version>off</version>
+							<name>off</name>
+						</configuration>
+						<goals>
+							<goal>build-info</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/build-info-disable-build-properties/src/main/java/org/test/SampleApplication.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2012-2021 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
+ *
+ *      https://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.test;
+
+public class SampleApplication {
+
+	public static void main(String[] args) {
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/BuildInfoMojo.java

@@ -41,6 +41,7 @@ import org.springframework.boot.loader.tools.BuildPropertiesWriter.ProjectDetail
  * {@link MavenProject}.
  *
  * @author Stephane Nicoll
+ * @author Vedran Pavic
  * @since 1.4.0
  */
 @Mojo(name = "build-info", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true)
@@ -55,18 +56,48 @@ public class BuildInfoMojo extends AbstractMojo {
 	@Parameter(defaultValue = "${session}", readonly = true, required = true)
 	private MavenSession session;
 
-	/**
-	 * The Maven project.
-	 */
-	@Parameter(defaultValue = "${project}", readonly = true, required = true)
-	private MavenProject project;
-
 	/**
 	 * The location of the generated {@code build-info.properties} file.
 	 */
 	@Parameter(defaultValue = "${project.build.outputDirectory}/META-INF/build-info.properties")
 	private File outputFile;
 
+	/**
+	 * The value used for the {@code build.group} property. Defaults to
+	 * {@code project.groupId}. To disable the {@code build.group} property entirely, use
+	 * {@code 'off'}.
+	 * @since 2.6.0
+	 */
+	@Parameter(defaultValue = "${project.groupId}")
+	private String group;
+
+	/**
+	 * The value used for the {@code build.artifact} property. Defaults to
+	 * {@code project.artifactId}. To disable the {@code build.artifact} property
+	 * entirely, use {@code 'off'}.
+	 * @since 2.6.0
+	 */
+	@Parameter(defaultValue = "${project.artifactId}")
+	private String artifact;
+
+	/**
+	 * The value used for the {@code build.version} property. Defaults to
+	 * {@code project.version}. To disable the {@code build.version} property entirely,
+	 * use {@code 'off'}.
+	 * @since 2.6.0
+	 */
+	@Parameter(defaultValue = "${project.version}")
+	private String version;
+
+	/**
+	 * The value used for the {@code build.name} property. Defaults to
+	 * {@code project.name}. To disable the {@code build.name} property entirely, use
+	 * {@code 'off'}.
+	 * @since 2.6.0
+	 */
+	@Parameter(defaultValue = "${project.name}")
+	private String name;
+
 	/**
 	 * The value used for the {@code build.time} property in a form suitable for
 	 * {@link Instant#parse(CharSequence)}. Defaults to
@@ -88,8 +119,8 @@ public class BuildInfoMojo extends AbstractMojo {
 	@Override
 	public void execute() throws MojoExecutionException, MojoFailureException {
 		try {
-			ProjectDetails details = new ProjectDetails(this.project.getGroupId(), this.project.getArtifactId(),
-					this.project.getVersion(), this.project.getName(), getBuildTime(), this.additionalProperties);
+			ProjectDetails details = new ProjectDetails(getGroup(), getArtifact(), getVersion(), getName(),
+					getBuildTime(), this.additionalProperties);
 			new BuildPropertiesWriter(this.outputFile).writeBuildProperties(details);
 			this.buildContext.refresh(this.outputFile);
 		}
@@ -101,6 +132,34 @@ public class BuildInfoMojo extends AbstractMojo {
 		}
 	}
 
+	private String getGroup() {
+		if ("off".equalsIgnoreCase(this.group)) {
+			return null;
+		}
+		return this.group;
+	}
+
+	private String getArtifact() {
+		if ("off".equalsIgnoreCase(this.artifact)) {
+			return null;
+		}
+		return this.artifact;
+	}
+
+	private String getVersion() {
+		if ("off".equalsIgnoreCase(this.version)) {
+			return null;
+		}
+		return this.version;
+	}
+
+	private String getName() {
+		if ("off".equalsIgnoreCase(this.name)) {
+			return null;
+		}
+		return this.name;
+	}
+
 	private Instant getBuildTime() {
 		if (this.time == null || this.time.isEmpty()) {
 			Date startTime = this.session.getRequest().getStartTime();