Merge branch '1.5.x'

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/EnableAutoConfiguration.java

@@ -41,6 +41,9 @@ import org.springframework.core.io.support.SpringFactoriesLoader;
  * {@link TomcatServletWebServerFactory} (unless you have defined your own
  * {@link ServletWebServerFactory} bean).
  * <p>
+ * When using {@link SpringBootApplication}, the auto-configuration of the context is
+ * automatically enabled and adding this annotation has therefore no additional effect.
+ * <p>
  * Auto-configuration tries to be as intelligent as possible and will back-away as you
  * define more of your own configuration. You can always manually {@link #exclude()} any
  * configuration that you never want to apply (use {@link #excludeName()} if you don't
@@ -48,11 +51,12 @@ import org.springframework.core.io.support.SpringFactoriesLoader;
  * {@code spring.autoconfigure.exclude} property. Auto-configuration is always applied
  * after user-defined beans have been registered.
  * <p>
- * The package of the class that is annotated with {@code @EnableAutoConfiguration} has
- * specific significance and is often used as a 'default'. For example, it will be used
- * when scanning for {@code @Entity} classes. It is generally recommended that you place
- * {@code @EnableAutoConfiguration} in a root package so that all sub-packages and classes
- * can be searched.
+ * The package of the class that is annotated with {@code @EnableAutoConfiguration},
+ * usually via {@code @SpringBootApplication}, has specific significance and is often used
+ * as a 'default'. For example, it will be used when scanning for {@code @Entity} classes.
+ * It is generally recommended that you place {@code @EnableAutoConfiguration} (if you're
+ * not using {@code @SpringBootApplication}) in a root package so that all sub-packages
+ * and classes can be searched.
  * <p>
  * Auto-configuration classes are regular Spring {@link Configuration} beans. They are
  * located using the {@link SpringFactoriesLoader} mechanism (keyed against this class).
@@ -66,6 +70,7 @@ import org.springframework.core.io.support.SpringFactoriesLoader;
  * @see ConditionalOnMissingBean
  * @see ConditionalOnClass
  * @see AutoConfigureAfter
+ * @see SpringBootApplication
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)

spring-boot/src/main/java/org/springframework/boot/jackson/JsonComponentModule.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.
@@ -16,6 +16,7 @@
 
 package org.springframework.boot.jackson;
 
+import java.lang.reflect.Modifier;
 import java.util.Map;
 
 import javax.annotation.PostConstruct;
@@ -78,8 +79,9 @@ public class JsonComponentModule extends SimpleModule implements BeanFactoryAwar
 			addDeserializerWithDeducedType((JsonDeserializer<?>) bean);
 		}
 		for (Class<?> innerClass : bean.getClass().getDeclaredClasses()) {
-			if (JsonSerializer.class.isAssignableFrom(innerClass)
-					|| JsonDeserializer.class.isAssignableFrom(innerClass)) {
+			if (!Modifier.isAbstract(innerClass.getModifiers()) &&
+					(JsonSerializer.class.isAssignableFrom(innerClass)
+							|| JsonDeserializer.class.isAssignableFrom(innerClass))) {
 				try {
 					addJsonBean(innerClass.newInstance());
 				}

spring-boot/src/test/java/org/springframework/boot/jackson/JsonComponentModuleTests.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.
@@ -18,6 +18,7 @@ package org.springframework.boot.jackson;
 
 import com.fasterxml.jackson.databind.Module;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.After;
 import org.junit.Test;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
@@ -31,34 +32,54 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class JsonComponentModuleTests {
 
+	private AnnotationConfigApplicationContext context;
+
+	@After
+	public void closeContext() {
+		if (this.context != null) {
+			this.context.close();
+		}
+	}
+
 	@Test
 	public void moduleShouldRegisterSerializers() throws Exception {
-		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
-				JsonComponentModule.class, OnlySerializer.class);
-		JsonComponentModule module = context.getBean(JsonComponentModule.class);
+		load(OnlySerializer.class);
+		JsonComponentModule module = this.context.getBean(JsonComponentModule.class);
 		assertSerialize(module);
-		context.close();
 	}
 
 	@Test
 	public void moduleShouldRegisterDeserializers() throws Exception {
-		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
-				JsonComponentModule.class, OnlyDeserializer.class);
-		JsonComponentModule module = context.getBean(JsonComponentModule.class);
+		load(OnlyDeserializer.class);
+		JsonComponentModule module = this.context.getBean(JsonComponentModule.class);
 		assertDeserialize(module);
-		context.close();
 	}
 
 	@Test
 	public void moduleShouldRegisterInnerClasses() throws Exception {
+		load(NameAndAgeJsonComponent.class);
+		JsonComponentModule module = this.context.getBean(JsonComponentModule.class);
+		assertSerialize(module);
+		assertDeserialize(module);
+	}
+
+	@Test
+	public void moduleShouldAllowInnerAbstractClasses() throws Exception {
 		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
-				JsonComponentModule.class, NameAndAgeJsonComponent.class);
+				JsonComponentModule.class, ComponentWithInnerAbstractClass.class);
 		JsonComponentModule module = context.getBean(JsonComponentModule.class);
 		assertSerialize(module);
-		assertDeserialize(module);
 		context.close();
 	}
 
+	private void load(Class<?>... configs) {
+		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+		ctx.register(configs);
+		ctx.register(JsonComponentModule.class);
+		ctx.refresh();
+		this.context = ctx;
+	}
+
 	private void assertSerialize(Module module) throws Exception {
 		ObjectMapper mapper = new ObjectMapper();
 		mapper.registerModule(module);
@@ -85,4 +106,15 @@ public class JsonComponentModuleTests {
 
 	}
 
+	@JsonComponent
+	static class ComponentWithInnerAbstractClass {
+
+		private static abstract class AbstractSerializer extends NameAndAgeJsonComponent.Serializer {
+
+		}
+
+		static class ConcreteSerializer extends AbstractSerializer {
+
+		}
+	}
 }