Use instance equality for Class

Closes gh-11534

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationImportSelector.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -108,7 +108,7 @@ public class AutoConfigurationImportSelector
 	}
 
 	protected boolean isEnabled(AnnotationMetadata metadata) {
-		if (getClass().equals(AutoConfigurationImportSelector.class)) {
+		if (getClass() == AutoConfigurationImportSelector.class) {
 			return getEnvironment().getProperty(
 					EnableAutoConfiguration.ENABLED_OVERRIDE_PROPERTY, Boolean.class,
 					true);

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/TypeExcludeFiltersContextCustomizer.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -80,7 +80,7 @@ class TypeExcludeFiltersContextCustomizer implements ContextCustomizer {
 
 	@Override
 	public boolean equals(Object obj) {
-		return (obj != null && getClass().equals(obj.getClass()) && this.filters
+		return (obj != null && getClass() == obj.getClass() && this.filters
 				.equals(((TypeExcludeFiltersContextCustomizer) obj).filters));
 	}
 

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/properties/PropertyMappingContextCustomizer.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -62,7 +62,7 @@ class PropertyMappingContextCustomizer implements ContextCustomizer {
 
 	@Override
 	public boolean equals(Object obj) {
-		return (obj != null && getClass().equals(obj.getClass()) && this.propertySource
+		return (obj != null && getClass() == obj.getClass() && this.propertySource
 				.equals(((PropertyMappingContextCustomizer) obj).propertySource));
 	}
 

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/filter/TypeExcludeFiltersContextCustomizerFactoryTests.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -125,7 +125,7 @@ public class TypeExcludeFiltersContextCustomizerFactoryTests {
 
 		@Override
 		public boolean equals(Object obj) {
-			return obj.getClass().equals(getClass());
+			return obj.getClass() == getClass();
 		}
 
 	}

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/json/app/ExampleBasicObject.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -40,7 +40,7 @@ public class ExampleBasicObject {
 
 	@Override
 	public boolean equals(Object obj) {
-		if (obj != null && obj.getClass().equals(getClass())) {
+		if (obj != null && obj.getClass() == getClass()) {
 			return this.value.equals(((ExampleBasicObject) obj).value);
 		}
 		return false;

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/json/app/ExampleCustomObject.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -36,7 +36,7 @@ public class ExampleCustomObject {
 
 	@Override
 	public boolean equals(Object obj) {
-		if (obj != null && obj.getClass().equals(getClass())) {
+		if (obj != null && obj.getClass() == getClass()) {
 			return this.value.equals(((ExampleCustomObject) obj).value);
 		}
 		return false;

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/ImportsContextCustomizer.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -346,7 +346,7 @@ class ImportsContextCustomizer implements ContextCustomizer {
 
 		@Override
 		public boolean equals(Object obj) {
-			return (obj != null && getClass().equals(obj.getClass())
+			return (obj != null && getClass() == obj.getClass()
 					&& this.key.equals(((ContextCustomizerKey) obj).key));
 		}
 

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/util/TestPropertyValues.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -144,7 +144,7 @@ public final class TestPropertyValues {
 	private void addToSources(MutablePropertySources sources, Type type, String name) {
 		if (sources.contains(name)) {
 			PropertySource<?> propertySource = sources.get(name);
-			if (propertySource.getClass().equals(type.getSourceClass())) {
+			if (propertySource.getClass() == type.getSourceClass()) {
 				((Map<String, Object>) propertySource.getSource())
 						.putAll(this.properties);
 				return;

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/TypeExcludeFilter.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -60,7 +60,7 @@ public class TypeExcludeFilter implements TypeFilter, BeanFactoryAware {
 	public boolean match(MetadataReader metadataReader,
 			MetadataReaderFactory metadataReaderFactory) throws IOException {
 		if (this.beanFactory instanceof ListableBeanFactory
-				&& getClass().equals(TypeExcludeFilter.class)) {
+				&& getClass() == TypeExcludeFilter.class) {
 			Collection<TypeExcludeFilter> delegates = ((ListableBeanFactory) this.beanFactory)
 					.getBeansOfType(TypeExcludeFilter.class).values();
 			for (TypeExcludeFilter delegate : delegates) {