Merge pull request #4784 from kirill-vlasov

* pr/4784:
  Make loggers private static final

Author: philwebb

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/audit/listener/AuditListener.java

@@ -31,7 +31,7 @@
  */
 public class AuditListener implements ApplicationListener<AuditApplicationEvent> {
 
-	private static Log logger = LogFactory.getLog(AuditListener.class);
+	private static final Log logger = LogFactory.getLog(AuditListener.class);
 
 	private final AuditEventRepository auditEventRepository;
 

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/ShellProperties.java

@@ -41,7 +41,7 @@
 @ConfigurationProperties(prefix = "shell", ignoreUnknownFields = true)
 public class ShellProperties {
 
-	private static Log logger = LogFactory.getLog(ShellProperties.class);
+	private static final Log logger = LogFactory.getLog(ShellProperties.class);
 
 	/**
 	 * Authentication type. Auto-detected according to the environment (i.e. if Spring
@@ -418,7 +418,7 @@ public String getPath() {
 	public static class SimpleAuthenticationProperties
 			extends CrshShellAuthenticationProperties {
 
-		private static Log logger = LogFactory
+		private static final Log logger = LogFactory
 				.getLog(SimpleAuthenticationProperties.class);
 
 		private User user = new User();

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/jmx/EndpointMBeanExporter.java

@@ -66,7 +66,7 @@ public class EndpointMBeanExporter extends MBeanExporter
 	 */
 	public static final String DEFAULT_DOMAIN = "org.springframework.boot";
 
-	private static Log logger = LogFactory.getLog(EndpointMBeanExporter.class);
+	private static final Log logger = LogFactory.getLog(EndpointMBeanExporter.class);
 
 	private final AnnotationJmxAttributeSource attributeSource = new AnnotationJmxAttributeSource();
 

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/DiskSpaceHealthIndicator.java

@@ -33,7 +33,7 @@
  */
 public class DiskSpaceHealthIndicator extends AbstractHealthIndicator {
 
-	private static Log logger = LogFactory.getLog(DiskSpaceHealthIndicator.class);
+	private static final Log logger = LogFactory.getLog(DiskSpaceHealthIndicator.class);
 
 	private final DiskSpaceHealthIndicatorProperties properties;
 

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/jmx/JmxMetricWriter.java

@@ -48,7 +48,7 @@
 @ManagedResource(description = "MetricWriter for pushing metrics to JMX MBeans.")
 public class JmxMetricWriter implements MetricWriter {
 
-	private static Log logger = LogFactory.getLog(JmxMetricWriter.class);
+	private static final Log logger = LogFactory.getLog(JmxMetricWriter.class);
 
 	private final ConcurrentMap<String, MetricValue> values = new ConcurrentHashMap<String, MetricValue>();
 

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/reader/MetricRegistryMetricReader.java

@@ -55,7 +55,7 @@
  */
 public class MetricRegistryMetricReader implements MetricReader, MetricRegistryListener {
 
-	private static Log logger = LogFactory.getLog(MetricRegistryMetricReader.class);
+	private static final Log logger = LogFactory.getLog(MetricRegistryMetricReader.class);
 
 	private static final Map<Class<?>, Set<String>> numberKeys = new ConcurrentHashMap<Class<?>, Set<String>>();
 

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/trace/WebRequestTraceFilter.java

@@ -48,7 +48,7 @@
  */
 public class WebRequestTraceFilter extends OncePerRequestFilter implements Ordered {
 
-	private final Log logger = LogFactory.getLog(WebRequestTraceFilter.class);
+	private static final Log logger = LogFactory.getLog(WebRequestTraceFilter.class);
 
 	private boolean dumpRequests = false;
 

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

@@ -48,7 +48,7 @@
  */
 public abstract class AutoConfigurationPackages {
 
-	private static Log logger = LogFactory.getLog(AutoConfigurationPackages.class);
+	private static final Log logger = LogFactory.getLog(AutoConfigurationPackages.class);
 
 	private static final String BEAN = AutoConfigurationPackages.class.getName();
 

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/BasicBatchConfigurer.java

@@ -45,7 +45,7 @@
 @Component
 public class BasicBatchConfigurer implements BatchConfigurer {
 
-	private static Log logger = LogFactory.getLog(BasicBatchConfigurer.class);
+	private static final Log logger = LogFactory.getLog(BasicBatchConfigurer.class);
 
 	private final BatchProperties properties;
 

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/JobLauncherCommandLineRunner.java

@@ -66,7 +66,7 @@
 public class JobLauncherCommandLineRunner
 		implements CommandLineRunner, ApplicationEventPublisherAware {
 
-	private static Log logger = LogFactory.getLog(JobLauncherCommandLineRunner.class);
+	private static final Log logger = LogFactory.getLog(JobLauncherCommandLineRunner.class);
 
 	private JobParametersConverter converter = new DefaultJobParametersConverter();