Add @FunctionalInterface to remaining public and protected interfaces

wilkinsona · wilkinsona · commit 31b0e81765b7 · 2017-01-27T16:41:09.000Z
See gh-6857
diff --git a/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/mvc/HeapdumpMvcEndpoint.java b/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/mvc/HeapdumpMvcEndpoint.java
@@ -168,6 +168,7 @@ protected void handle(File heapDumpFile, HttpServletRequest request,
 	/**
 	 * Strategy interface used to dump the heap to a file.
 	 */
+	@FunctionalInterface
 	protected interface HeapDumper {
 
 		/**
diff --git a/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/mvc/NamePatternFilter.java b/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/mvc/NamePatternFilter.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -76,7 +76,7 @@ private boolean isRegex(String name) {
 	/**
 	 * Callback used to add a name.
 	 */
-	protected interface NameCallback {
+	interface NameCallback {
 
 		void addName(String name);
 
diff --git a/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/dropwizard/ReservoirFactory.java b/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/dropwizard/ReservoirFactory.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -26,6 +26,7 @@
  * @author Phillip Webb
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface ReservoirFactory {
 
 	/**
diff --git a/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/util/SimpleInMemoryRepository.java b/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/util/SimpleInMemoryRepository.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -102,6 +102,7 @@ protected NavigableMap<String, T> getValues() {
 	 *
 	 * @param <T> the value type
 	 */
+	@FunctionalInterface
 	public interface Callback<T> {
 
 		/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportFilter.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportFilter.java
@@ -39,6 +39,7 @@
  * @author Phillip Webb
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface AutoConfigurationImportFilter {
 
 	/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportListener.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportListener.java
@@ -41,6 +41,7 @@
  * @author Phillip Webb
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface AutoConfigurationImportListener extends EventListener {
 
 	/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cassandra/ClusterBuilderCustomizer.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cassandra/ClusterBuilderCustomizer.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -27,6 +27,7 @@
  * @author Eddú Meléndez
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface ClusterBuilderCustomizer {
 
 	/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/elasticsearch/jest/HttpClientConfigBuilderCustomizer.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/elasticsearch/jest/HttpClientConfigBuilderCustomizer.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -27,6 +27,7 @@
  * @author Stephane Nicoll
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface HttpClientConfigBuilderCustomizer {
 
 	/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/IgnoredRequestCustomizer.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/IgnoredRequestCustomizer.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -25,6 +25,7 @@
  * @author Madhura Bhave
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface IgnoredRequestCustomizer {
 
 	/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/UserInfoRestTemplateFactory.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/UserInfoRestTemplateFactory.java
@@ -26,6 +26,7 @@
  * @author Stephane Nicoll
  * @since 1.4.0
  */
+@FunctionalInterface
 public interface UserInfoRestTemplateFactory {
 
 	/**
diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/PlatformTransactionManagerCustomizer.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/PlatformTransactionManagerCustomizer.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -27,6 +27,7 @@
  * @author Phillip Webb
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface PlatformTransactionManagerCustomizer<T extends PlatformTransactionManager> {
 
 	/**
diff --git a/spring-boot-test/src/main/java/org/springframework/boot/test/context/DefaultTestExecutionListenersPostProcessor.java b/spring-boot-test/src/main/java/org/springframework/boot/test/context/DefaultTestExecutionListenersPostProcessor.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -29,6 +29,7 @@
  * @since 1.4.1
  * @see SpringBootTest
  */
+@FunctionalInterface
 public interface DefaultTestExecutionListenersPostProcessor {
 
 	/**
diff --git a/spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/fieldvalues/javac/TreeVisitor.java b/spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/fieldvalues/javac/TreeVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 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.
@@ -22,7 +22,6 @@
  * @author Phillip Webb
  * @since 1.2.0
  */
-@FunctionalInterface
 interface TreeVisitor {
 
 	void visitVariable(VariableTree variable) throws Exception;
diff --git a/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/CustomLoaderLayout.java b/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/CustomLoaderLayout.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -25,6 +25,7 @@
  * @author Phillip Webb
  * @since 1.5.0
  */
+@FunctionalInterface
 public interface CustomLoaderLayout {
 
 	/**
diff --git a/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/LayoutFactory.java b/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/LayoutFactory.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -24,6 +24,7 @@
  * @author Dave Syer
  * @author Phillip Webb
  */
+@FunctionalInterface
 public interface LayoutFactory {
 
 	/**
diff --git a/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/Repackager.java b/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/Repackager.java
@@ -404,6 +404,7 @@ private void deleteFile(File file) {
 	 * Callback interface used to present a warning when finding the main class takes too
 	 * long.
 	 */
+	@FunctionalInterface
 	public interface MainClassTimeoutWarningListener {
 
 		/**
diff --git a/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/JarEntryFilter.java b/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/JarEntryFilter.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -21,7 +21,6 @@
  *
  * @author Phillip Webb
  */
-@FunctionalInterface
 interface JarEntryFilter {
 
 	/**
diff --git a/spring-boot/src/main/java/org/springframework/boot/BeanDefinitionLoader.java b/spring-boot/src/main/java/org/springframework/boot/BeanDefinitionLoader.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -326,7 +326,7 @@ protected boolean matchClassName(String className) {
 	/**
 	 * Source for Bean definitions defined in Groovy.
 	 */
-	protected interface GroovyBeanDefinitionSource {
+	interface GroovyBeanDefinitionSource {
 
 		Closure<?> getBeans();
 
diff --git a/spring-boot/src/main/java/org/springframework/boot/bind/PropertyNamePatternsMatcher.java b/spring-boot/src/main/java/org/springframework/boot/bind/PropertyNamePatternsMatcher.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 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.
@@ -22,7 +22,6 @@
  * @author Phillip Webb
  * @since 1.2.0
  */
-@FunctionalInterface
 interface PropertyNamePatternsMatcher {
 
 	PropertyNamePatternsMatcher ALL = new PropertyNamePatternsMatcher() {
diff --git a/spring-boot/src/main/java/org/springframework/boot/context/ConfigurationWarningsApplicationContextInitializer.java b/spring-boot/src/main/java/org/springframework/boot/context/ConfigurationWarningsApplicationContextInitializer.java
@@ -114,6 +114,7 @@ private void warn(String message) {
 	/**
 	 * A single check that can be applied.
 	 */
+	@FunctionalInterface
 	protected interface Check {
 
 		/**
diff --git a/spring-boot/src/main/java/org/springframework/boot/orm/jpa/EntityManagerFactoryBuilder.java b/spring-boot/src/main/java/org/springframework/boot/orm/jpa/EntityManagerFactoryBuilder.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -220,6 +220,7 @@ public LocalContainerEntityManagerFactoryBean build() {
 	/**
 	 * A callback for new entity manager factory beans created by a Builder.
 	 */
+	@FunctionalInterface
 	public interface EntityManagerFactoryBeanCallback {
 
 		void execute(LocalContainerEntityManagerFactoryBean factory);

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`/*`
`2`		`- * Copyright 2012-2016 the original author or authors.`
	`2`	`+ * Copyright 2012-2017 the original author or authors.`
`3`	`3`	`*`
`4`	`4`	`* Licensed under the Apache License, Version 2.0 (the "License");`
`5`	`5`	`* you may not use this file except in compliance with the License.`
`@@ -102,6 +102,7 @@ protected NavigableMap<String, T> getValues() {`
`102`	`102`	`*`
`103`	`103`	`* @param <T> the value type`
`104`	`104`	`*/`
	`105`	`+ @FunctionalInterface`
`105`	`106`	`public interface Callback<T> {`
`106`	`107`
`107`	`108`	`/**`