Apply dependency management to selected modules

This commit applies the Dependency Management Plugin to modules that
require it; right now Spring Framework is importing BOMs for Netty and
Reactor dependencies only.

Instead of applying those BOMs to all modules, they're applied only
where they're needed.

Issue: SPR-15885

build.gradle

@@ -90,13 +90,6 @@ configure(allprojects) { project ->
 	configurations.all {
 		// Check for updates every build
 		resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
-
-		// Consistent netty version (e.g. clashes between netty-all vs netty-common)
-		resolutionStrategy.eachDependency { DependencyResolveDetails details ->
-			if (details.requested.group == 'io.netty') {
-				details.useVersion nettyVersion
-			}
-		}
 	}
 
 	compileJava.options*.compilerArgs = [
@@ -185,18 +178,6 @@ configure(allprojects) { project ->
 
 configure(subprojects - project(":spring-build-src")) { subproject ->
 	apply from: "${gradleScriptDir}/publish-maven.gradle"
-	apply plugin: "io.spring.dependency-management"
-
-	dependencyManagement {
-		imports {
-			mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
-			mavenBom "io.netty:netty-bom:${nettyVersion}"
-		}
-		resolutionStrategy {
-			cacheChangingModulesFor 0, 'seconds'
-		}
-		applyMavenExclusions = false
-	}
 
 	configurations {
 		jacoco

spring-core/spring-core.gradle

@@ -1,5 +1,18 @@
 description = "Spring Core"
 
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+		mavenBom "io.netty:netty-bom:${nettyVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
+
 // As of Spring 4.0.3, spring-core includes asm 5.x and repackages cglib 3.2, inlining
 // both into the spring-core jar. cglib 3.2 itself depends on asm 5.x and is therefore
 // further transformed by the JarJar task to depend on org.springframework.asm; this

spring-messaging/spring-messaging.gradle

@@ -1,5 +1,18 @@
 description = "Spring Messaging"
 
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+		mavenBom "io.netty:netty-bom:${nettyVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
+
 dependencies {
 	compile(project(":spring-beans"))
 	compile(project(":spring-core"))

spring-test/spring-test.gradle

@@ -1,5 +1,18 @@
 description = "Spring TestContext Framework"
 
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+		mavenBom "io.netty:netty-bom:${nettyVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
+
 dependencies {
 	compile(project(":spring-core"))
 	optional(project(":spring-aop"))

spring-web/spring-web.gradle

@@ -1,6 +1,18 @@
 description = "Spring Web"
 
 apply plugin: "groovy"
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+		mavenBom "io.netty:netty-bom:${nettyVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
 
 dependencies {
 	compile(project(":spring-beans"))

spring-webflux/spring-webflux.gradle

@@ -1,5 +1,18 @@
 description = "Spring WebFlux"
 
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+		mavenBom "io.netty:netty-bom:${nettyVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
+
 dependencies {
 	compile(project(":spring-beans"))
 	compile(project(":spring-core"))

spring-webmvc/spring-webmvc.gradle

@@ -1,5 +1,17 @@
 description = "Spring Web MVC"
 
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
+
 dependencies {
 	provided("javax.servlet:javax.servlet-api:4.0.0")
 	compile(project(":spring-aop"))

spring-websocket/spring-websocket.gradle

@@ -1,5 +1,18 @@
 description = "Spring WebSocket"
 
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+	imports {
+		mavenBom "io.projectreactor:reactor-bom:${reactorVersion}"
+		mavenBom "io.netty:netty-bom:${nettyVersion}"
+	}
+	resolutionStrategy {
+		cacheChangingModulesFor 0, 'seconds'
+	}
+	applyMavenExclusions = false
+}
+
 dependencies {
 	compile(project(":spring-context"))
 	compile(project(":spring-core"))