Deprecate support for module layout

Closes gh-8008

spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/SpringBootPluginExtension.java

 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -304,7 +304,7 @@ public class SpringBootPluginExtension {
 
 		DIR(new Layouts.Expanded()),
 
-		MODULE(new Layouts.Module()),
+		@SuppressWarnings("deprecation") MODULE(new Layouts.Module()),
 
 		NONE(new Layouts.None());
 

spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/repackage/RepackageTask.java

 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -33,6 +33,8 @@ import org.gradle.api.tasks.bundling.Jar;
 import org.springframework.boot.gradle.SpringBootPluginExtension;
 import org.springframework.boot.loader.tools.DefaultLaunchScript;
 import org.springframework.boot.loader.tools.LaunchScript;
+import org.springframework.boot.loader.tools.Layout;
+import org.springframework.boot.loader.tools.Layouts;
 import org.springframework.boot.loader.tools.Repackager;
 import org.springframework.boot.loader.tools.Repackager.MainClassTimeoutWarningListener;
 import org.springframework.util.FileCopyUtils;
@@ -207,6 +209,7 @@ public class RepackageTask extends DefaultTask {
 			return task.equals(withJarTask) || task.getName().equals(withJarTask);
 		}
 
+		@SuppressWarnings("deprecation")
 		private void repackage(File file) {
 			File outputFile = RepackageTask.this.outputFile;
 			if (outputFile != null && !file.equals(outputFile)) {
@@ -218,8 +221,13 @@ public class RepackageTask extends DefaultTask {
 			repackager.addMainClassTimeoutWarningListener(
 					new LoggingMainClassTimeoutWarningListener());
 			setMainClass(repackager);
-			if (this.extension.convertLayout() != null) {
-				repackager.setLayout(this.extension.convertLayout());
+			Layout layout = this.extension.convertLayout();
+			if (layout != null) {
+				if (layout instanceof Layouts.Module) {
+					getLogger().warn("Module layout is deprecated. Please use a custom"
+							+ " LayoutFactory instead.");
+				}
+				repackager.setLayout(layout);
 			}
 			repackager.setBackupSource(this.extension.isBackupSource());
 			try {

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

 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -158,7 +158,9 @@ public final class Layouts {
 
 	/**
 	 * Module layout (designed to be used as a "plug-in").
+	 * @deprecated since 1.5 in favour of a custom {@link LayoutFactory}
 	 */
+	@Deprecated
 	public static class Module implements Layout {
 
 		private static final Set<LibraryScope> LIB_DESTINATION_SCOPES = new HashSet<LibraryScope>(

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

 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -87,6 +87,7 @@ public class LayoutsTests {
 	}
 
 	@Test
+	@SuppressWarnings("deprecation")
 	public void moduleLayout() throws Exception {
 		Layout layout = new Layouts.Module();
 		assertThat(layout.getLibraryDestination("lib.jar", LibraryScope.COMPILE))

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

 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -236,6 +236,10 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 		repackager.setMainClass(this.mainClass);
 		if (this.layout != null) {
 			getLog().info("Layout: " + this.layout);
+			if (this.layout == LayoutType.MODULE) {
+				getLog().warn("Module layout is deprecated. Please use a custom"
+						+ " LayoutFactory instead.");
+			}
 			repackager.setLayout(this.layout.layout());
 		}
 		return repackager;
@@ -344,8 +348,9 @@ public class RepackageMojo extends AbstractDependencyFilterMojo {
 
 		/**
 		 * Module Layout.
+		 * @deprecated since 1.5 in favour of a custom {@link LayoutFactory}
 		 */
-		MODULE(new Layouts.Module()),
+		@Deprecated MODULE(new Layouts.Module()),
 
 		/**
 		 * No Layout.