Polishing

spring-aop/src/main/java/org/springframework/aop/framework/ProxyFactoryBean.java

@@ -651,7 +651,7 @@ public class ProxyFactoryBean extends ProxyCreatorSupport
 		}
 
 		public String getBeanName() {
-			return beanName;
+			return this.beanName;
 		}
 
 		@Override

spring-aop/src/main/java/org/springframework/aop/target/AbstractPrototypeBasedTargetSource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -74,8 +74,8 @@ public abstract class AbstractPrototypeBasedTargetSource extends AbstractBeanFac
 	 * @param target the bean instance to destroy
 	 */
 	protected void destroyPrototypeInstance(Object target) {
-		if (this.logger.isDebugEnabled()) {
-			this.logger.debug("Destroying instance of bean '" + getTargetBeanName() + "'");
+		if (logger.isDebugEnabled()) {
+			logger.debug("Destroying instance of bean '" + getTargetBeanName() + "'");
 		}
 		if (getBeanFactory() instanceof ConfigurableBeanFactory) {
 			((ConfigurableBeanFactory) getBeanFactory()).destroyBean(getTargetBeanName(), target);
@@ -85,7 +85,7 @@ public abstract class AbstractPrototypeBasedTargetSource extends AbstractBeanFac
 				((DisposableBean) target).destroy();
 			}
 			catch (Throwable ex) {
-				logger.error("Couldn't invoke destroy method of bean with name '" + getTargetBeanName() + "'", ex);
+				logger.error("Destroy method on bean with name '" + getTargetBeanName() + "' threw an exception", ex);
 			}
 		}
 	}

spring-beans/src/main/java/org/springframework/beans/factory/support/DisposableBeanAdapter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -248,12 +248,12 @@ class DisposableBeanAdapter implements DisposableBean, Runnable, Serializable {
 			try {
 				if (System.getSecurityManager() != null) {
 					AccessController.doPrivileged((PrivilegedExceptionAction<Object>) () -> {
-						((DisposableBean) bean).destroy();
+						((DisposableBean) this.bean).destroy();
 						return null;
-					}, acc);
+					}, this.acc);
 				}
 				else {
-					((DisposableBean) bean).destroy();
+					((DisposableBean) this.bean).destroy();
 				}
 			}
 			catch (Throwable ex) {
@@ -326,7 +326,7 @@ class DisposableBeanAdapter implements DisposableBean, Runnable, Serializable {
 				});
 				try {
 					AccessController.doPrivileged((PrivilegedExceptionAction<Object>) () ->
-						destroyMethod.invoke(bean, args), acc);
+						destroyMethod.invoke(this.bean, args), this.acc);
 				}
 				catch (PrivilegedActionException pax) {
 					throw (InvocationTargetException) pax.getException();
@@ -334,12 +334,12 @@ class DisposableBeanAdapter implements DisposableBean, Runnable, Serializable {
 			}
 			else {
 				ReflectionUtils.makeAccessible(destroyMethod);
-				destroyMethod.invoke(bean, args);
+				destroyMethod.invoke(this.bean, args);
 			}
 		}
 		catch (InvocationTargetException ex) {
-			String msg = "Invocation of destroy method '" + this.destroyMethodName +
-					"' failed on bean with name '" + this.beanName + "'";
+			String msg = "Destroy method '" + this.destroyMethodName + "' on bean with name '" +
+					this.beanName + "' threw an exception";
 			if (logger.isDebugEnabled()) {
 				logger.warn(msg, ex.getTargetException());
 			}
@@ -348,7 +348,7 @@ class DisposableBeanAdapter implements DisposableBean, Runnable, Serializable {
 			}
 		}
 		catch (Throwable ex) {
-			logger.error("Couldn't invoke destroy method '" + this.destroyMethodName +
+			logger.error("Failed to invoke destroy method '" + this.destroyMethodName +
 					"' on bean with name '" + this.beanName + "'", ex);
 		}
 	}

spring-context/src/main/java/org/springframework/context/annotation/AutoProxyRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -77,7 +77,7 @@ public class AutoProxyRegistrar implements ImportBeanDefinitionRegistrar {
 				}
 			}
 		}
-		if (!candidateFound) {
+		if (!candidateFound && logger.isWarnEnabled()) {
 			String name = getClass().getSimpleName();
 			logger.warn(String.format("%s was imported but no annotations were found " +
 					"having both 'mode' and 'proxyTargetClass' attributes of type " +

spring-context/src/main/java/org/springframework/jmx/support/MBeanRegistrationSupport.java

@@ -151,7 +151,9 @@ public class MBeanRegistrationSupport {
 						registeredBean = this.server.registerMBean(mbean, objectName);
 					}
 					catch (InstanceNotFoundException ex2) {
-						logger.error("Unable to replace existing MBean at [" + objectName + "]", ex2);
+						if (logger.isErrorEnabled()) {
+							logger.error("Unable to replace existing MBean at [" + objectName + "]", ex2);
+						}
 						throw ex;
 					}
 				}
@@ -181,9 +183,9 @@ public class MBeanRegistrationSupport {
 		}
 		if (!snapshot.isEmpty()) {
 			logger.info("Unregistering JMX-exposed beans");
-		}
-		for (ObjectName objectName : snapshot) {
-			doUnregister(objectName);
+			for (ObjectName objectName : snapshot) {
+				doUnregister(objectName);
+			}
 		}
 	}
 

spring-context/src/main/java/org/springframework/remoting/rmi/RmiServiceExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -436,8 +436,8 @@ public class RmiServiceExporter extends RmiBasedExporter implements Initializing
 		}
 		catch (NotBoundException ex) {
 			if (logger.isWarnEnabled()) {
-				logger.warn("RMI service '" + this.serviceName + "' is not bound to registry"
-						+ (this.createdRegistry ? (" at port '" + this.registryPort + "' anymore") : ""), ex);
+				logger.warn("RMI service '" + this.serviceName + "' is not bound to registry" +
+						(this.createdRegistry ? (" at port '" + this.registryPort + "' anymore") : ""), ex);
 			}
 		}
 		finally {
@@ -454,8 +454,9 @@ public class RmiServiceExporter extends RmiBasedExporter implements Initializing
 		}
 		catch (NoSuchObjectException ex) {
 			if (logger.isWarnEnabled()) {
-				logger.warn("RMI object for service '" + this.serviceName + "' isn't exported anymore", ex);
+				logger.warn("RMI object for service '" + this.serviceName + "' is not exported anymore", ex);
 			}
 		}
 	}
+
 }

spring-context/src/main/java/org/springframework/remoting/support/RemoteInvocationBasedExporter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2007 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -79,13 +79,13 @@ public abstract class RemoteInvocationBasedExporter extends RemoteExporter {
 		}
 		catch (NoSuchMethodException ex) {
 			if (logger.isDebugEnabled()) {
-				logger.warn("Could not find target method for " + invocation, ex);
+				logger.debug("Could not find target method for " + invocation, ex);
 			}
 			throw ex;
 		}
 		catch (IllegalAccessException ex) {
 			if (logger.isDebugEnabled()) {
-				logger.warn("Could not access target method for " + invocation, ex);
+				logger.debug("Could not access target method for " + invocation, ex);
 			}
 			throw ex;
 		}

spring-context/src/main/java/org/springframework/scheduling/concurrent/ScheduledExecutorFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -157,7 +157,7 @@ public class ScheduledExecutorFactoryBean extends ExecutorConfigurationSupport
 				((ScheduledThreadPoolExecutor) executor).setRemoveOnCancelPolicy(true);
 			}
 			else {
-				logger.info("Could not apply remove-on-cancel policy - not a Java 7+ ScheduledThreadPoolExecutor");
+				logger.info("Could not apply remove-on-cancel policy - not a ScheduledThreadPoolExecutor");
 			}
 		}
 

spring-context/src/main/java/org/springframework/scheduling/concurrent/ThreadPoolTaskScheduler.java

@@ -99,7 +99,7 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
 			((ScheduledThreadPoolExecutor) this.scheduledExecutor).setRemoveOnCancelPolicy(removeOnCancelPolicy);
 		}
 		else if (removeOnCancelPolicy && this.scheduledExecutor != null) {
-			logger.info("Could not apply remove-on-cancel policy - not a Java 7+ ScheduledThreadPoolExecutor");
+			logger.info("Could not apply remove-on-cancel policy - not a ScheduledThreadPoolExecutor");
 		}
 	}
 
@@ -122,7 +122,7 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
 				((ScheduledThreadPoolExecutor) this.scheduledExecutor).setRemoveOnCancelPolicy(true);
 			}
 			else {
-				logger.info("Could not apply remove-on-cancel policy - not a Java 7+ ScheduledThreadPoolExecutor");
+				logger.info("Could not apply remove-on-cancel policy - not a ScheduledThreadPoolExecutor");
 			}
 		}
 
@@ -284,8 +284,8 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
 	private void executeAndTrack(ExecutorService executor, ListenableFutureTask<?> listenableFuture) {
 		Future<?> scheduledFuture = executor.submit(errorHandlingTask(listenableFuture, false));
 		this.listenableFutureMap.put(scheduledFuture, listenableFuture);
-		listenableFuture.addCallback(result -> listenableFutureMap.remove(scheduledFuture),
-				ex -> listenableFutureMap.remove(scheduledFuture));
+		listenableFuture.addCallback(result -> this.listenableFutureMap.remove(scheduledFuture),
+				ex -> this.listenableFutureMap.remove(scheduledFuture));
 	}
 
 	@Override
@@ -403,8 +403,8 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
 			try {
 				return this.delegate.call();
 			}
-			catch (Throwable t) {
-				this.errorHandler.handleError(t);
+			catch (Throwable ex) {
+				this.errorHandler.handleError(ex);
 				return null;
 			}
 		}

spring-core/src/main/java/org/springframework/core/env/AbstractEnvironment.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -17,6 +17,7 @@
 package org.springframework.core.env;
 
 import java.security.AccessControlException;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.LinkedHashSet;
 import java.util.Map;
@@ -250,6 +251,9 @@ public abstract class AbstractEnvironment implements ConfigurableEnvironment {
 	@Override
 	public void setActiveProfiles(String... profiles) {
 		Assert.notNull(profiles, "Profile array must not be null");
+		if (logger.isDebugEnabled()) {
+			logger.debug("Activating profiles " + Arrays.asList(profiles));
+		}
 		synchronized (this.activeProfiles) {
 			this.activeProfiles.clear();
 			for (String profile : profiles) {

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/CallMetaDataContext.java

@@ -520,7 +520,7 @@ public class CallMetaDataContext {
 										matchedParameters.put(parameterName,
 												SqlParameterSourceUtils.getTypedValue(parameterSource, sourceName));
 									}
-									else {
+									else if (logger.isWarnEnabled()) {
 										logger.warn("Unable to locate the corresponding parameter value for '" +
 												parameterName + "' within the parameter values provided: " +
 												caseInsensitiveParameterNames.values());
@@ -587,7 +587,7 @@ public class CallMetaDataContext {
 			for (String parameterName : callParameterNames.keySet()) {
 				String parameterNameToMatch = provider.parameterNameToUse(parameterName);
 				String callParameterName = callParameterNames.get(lowerCase(parameterNameToMatch));
-				if (!matchedParameters.containsKey(callParameterName)) {
+				if (!matchedParameters.containsKey(callParameterName) && logger.isWarnEnabled()) {
 					logger.warn("Unable to locate the corresponding parameter value for '" + parameterName +
 							"' within the parameter values provided: " + inParameters.keySet());
 				}

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/TableMetaDataContext.java

@@ -264,7 +264,7 @@ public class TableMetaDataContext {
 
 
 	/**
-	 * Build the insert string based on configuration and meta-data information
+	 * Build the insert string based on configuration and meta-data information.
 	 * @return the insert string to be used
 	 */
 	public String createInsertString(String... generatedKeyNames) {
@@ -293,8 +293,10 @@ public class TableMetaDataContext {
 		insertStatement.append(") VALUES(");
 		if (columnCount < 1) {
 			if (this.generatedKeyColumnsUsed) {
-				logger.info("Unable to locate non-key columns for table '" +
-						getTableName() + "' so an empty insert statement is generated");
+				if (logger.isInfoEnabled()) {
+					logger.info("Unable to locate non-key columns for table '" +
+							getTableName() + "' so an empty insert statement is generated");
+				}
 			}
 			else {
 				throw new InvalidDataAccessApiUsageException("Unable to locate columns for table '" +
@@ -360,6 +362,9 @@ public class TableMetaDataContext {
 	}
 
 	/**
+	 * Does this database support a simple query to retrieve generated keys
+	 * when the JDBC 3.0 feature is not supported:
+	 * {@link java.sql.DatabaseMetaData#supportsGetGeneratedKeys()}?
 	 * @deprecated as of 4.3.15, in favor of {@link #getSimpleQueryForGetGeneratedKey}
 	 */
 	@Deprecated

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseFactory.java

@@ -91,8 +91,8 @@ public class EmbeddedDatabaseFactory {
 	 * generation of a pseudo-random unique ID to be used as the database name.
 	 * <p>Setting this flag to {@code true} overrides any explicit name set
 	 * via {@link #setDatabaseName}.
-	 * @see #setDatabaseName
 	 * @since 4.2
+	 * @see #setDatabaseName
 	 */
 	public void setGenerateUniqueDatabaseName(boolean generateUniqueDatabaseName) {
 		this.generateUniqueDatabaseName = generateUniqueDatabaseName;
@@ -187,7 +187,7 @@ public class EmbeddedDatabaseFactory {
 			if (this.dataSource instanceof SimpleDriverDataSource) {
 				SimpleDriverDataSource simpleDriverDataSource = (SimpleDriverDataSource) this.dataSource;
 				logger.info(String.format("Starting embedded database: url='%s', username='%s'",
-					simpleDriverDataSource.getUrl(), simpleDriverDataSource.getUsername()));
+						simpleDriverDataSource.getUrl(), simpleDriverDataSource.getUsername()));
 			}
 			else {
 				logger.info(String.format("Starting embedded database '%s'", this.databaseName));

spring-jdbc/src/main/java/org/springframework/jdbc/support/SQLErrorCodesFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -124,8 +124,8 @@ public class SQLErrorCodesFactory {
 
 			// Check all beans of type SQLErrorCodes.
 			errorCodes = lbf.getBeansOfType(SQLErrorCodes.class, true, false);
-			if (logger.isInfoEnabled()) {
-				logger.info("SQLErrorCodes loaded: " + errorCodes.keySet());
+			if (logger.isDebugEnabled()) {
+				logger.debug("SQLErrorCodes loaded: " + errorCodes.keySet());
 			}
 		}
 		catch (BeansException ex) {

spring-jdbc/src/main/java/org/springframework/jdbc/support/lob/TemporaryLobCreator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -188,7 +188,7 @@ public class TemporaryLobCreator implements LobCreator {
 			}
 		}
 		catch (SQLException ex) {
-			logger.error("Could not free LOB", ex);
+			logger.error("Could not free LOBs", ex);
 		}
 	}
 

spring-messaging/src/main/java/org/springframework/messaging/support/AbstractHeaderMapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -26,7 +26,7 @@ import org.springframework.messaging.MessageHeaders;
 import org.springframework.util.StringUtils;
 
 /**
- * A base {@link HeaderMapper} implementation
+ * A base {@link HeaderMapper} implementation.
  *
  * @author Stephane Nicoll
  * @since 4.1

spring-oxm/src/main/java/org/springframework/oxm/jibx/JibxMarshaller.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -218,7 +218,8 @@ public class JibxMarshaller extends AbstractMarshaller implements InitializingBe
 		if (this.targetClass != null) {
 			if (StringUtils.hasLength(this.bindingName)) {
 				if (logger.isInfoEnabled()) {
-					logger.info("Configured for target class [" + this.targetClass + "] using binding [" + this.bindingName + "]");
+					logger.info("Configured for target class [" + this.targetClass +
+							"] using binding [" + this.bindingName + "]");
 				}
 				this.bindingFactory = BindingDirectory.getFactory(this.bindingName, this.targetClass);
 			}
@@ -230,11 +231,12 @@ public class JibxMarshaller extends AbstractMarshaller implements InitializingBe
 			}
 		}
 		else if (this.targetPackage != null) {
-			if (!StringUtils.hasLength(bindingName)) {
-				bindingName = DEFAULT_BINDING_NAME;
+			if (!StringUtils.hasLength(this.bindingName)) {
+				this.bindingName = DEFAULT_BINDING_NAME;
 			}
 			if (logger.isInfoEnabled()) {
-				logger.info("Configured for target package [" + this.targetPackage	+ "] using binding [" + this.bindingName + "]");
+				logger.info("Configured for target package [" + this.targetPackage +
+						"] using binding [" + this.bindingName + "]");
 			}
 			this.bindingFactory = BindingDirectory.getFactory(this.bindingName, this.targetPackage);
 		}
@@ -290,9 +292,10 @@ public class JibxMarshaller extends AbstractMarshaller implements InitializingBe
 	}
 
 	private void marshalDocument(IMarshallingContext marshallingContext, Object graph) throws IOException, JiBXException {
-		if (StringUtils.hasLength(docTypeRootElementName)) {
+		if (StringUtils.hasLength(this.docTypeRootElementName)) {
 			IXMLWriter xmlWriter = marshallingContext.getXmlWriter();
-			xmlWriter.writeDocType(docTypeRootElementName, docTypeSystemId, docTypePublicId, docTypeInternalSubset);
+			xmlWriter.writeDocType(this.docTypeRootElementName, this.docTypeSystemId,
+					this.docTypePublicId, this.docTypeInternalSubset);
 		}
 		marshallingContext.marshalDocument(graph);
 	}
@@ -391,7 +394,7 @@ public class JibxMarshaller extends AbstractMarshaller implements InitializingBe
 	protected Object unmarshalInputStream(InputStream inputStream) throws XmlMappingException, IOException {
 		try {
 			IUnmarshallingContext unmarshallingContext = createUnmarshallingContext();
-			return unmarshallingContext.unmarshalDocument(inputStream, encoding);
+			return unmarshallingContext.unmarshalDocument(inputStream, this.encoding);
 		}
 		catch (JiBXException ex) {
 			throw convertJibxException(ex, false);

spring-websocket/src/main/java/org/springframework/web/socket/messaging/WebSocketAnnotationMethodMessageHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -76,7 +76,9 @@ public class WebSocketAnnotationMethodMessageHandler extends SimpAnnotationMetho
 				AnnotationExceptionHandlerMethodResolver resolver = new AnnotationExceptionHandlerMethodResolver(type);
 				if (resolver.hasExceptionMappings()) {
 					registerExceptionHandlerAdvice(bean, resolver);
-					logger.info("Detected @MessageExceptionHandler methods in " + bean);
+					if (logger.isInfoEnabled()) {
+						logger.info("Detected @MessageExceptionHandler methods in " + bean);
+					}
 				}
 			}
 		}

spring-websocket/src/main/java/org/springframework/web/socket/server/standard/ServerEndpointExporter.java

@@ -145,9 +145,9 @@ public class ServerEndpointExporter extends WebApplicationObjectSupport
 		ServerContainer serverContainer = getServerContainer();
 		Assert.state(serverContainer != null,
 				"No ServerContainer set. Most likely the server's own WebSocket ServletContainerInitializer " +
-						"has not run yet. Was the Spring ApplicationContext refreshed through a " +
-						"org.springframework.web.context.ContextLoaderListener, " +
-						"i.e. after the ServletContext has been fully initialized?");
+				"has not run yet. Was the Spring ApplicationContext refreshed through a " +
+				"org.springframework.web.context.ContextLoaderListener, " +
+				"i.e. after the ServletContext has been fully initialized?");
 		try {
 			if (logger.isInfoEnabled()) {
 				logger.info("Registering @ServerEndpoint class: " + endpointClass);