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pkarwasz pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/logging-log4j2.git


The following commit(s) were added to refs/heads/master by this push:
     new e7c1718716 Fix remaining formatting problems
e7c1718716 is described below

commit e7c171871679a72905fb29aeae7a990f75428c8a
Author: Piotr P. Karwasz <[email protected]>
AuthorDate: Thu Nov 10 00:09:24 2022 +0100

    Fix remaining formatting problems
---
 .../java/org/apache/log4j/BasicConfigurator.java   |   4 +-
 .../src/main/java/org/apache/log4j/LogManager.java | 448 ++++++++++-----------
 .../src/main/java/org/apache/log4j/Logger.java     |   4 +-
 .../config/PropertiesConfigurationFactory.java     |  11 +-
 .../apache/log4j/layout/Log4j1SyslogLayout.java    |  12 +-
 .../apache/log4j/xml/XmlConfigurationFactory.java  |  11 +-
 .../logging/log4j/test/junit/ClassMatchers.java    |   1 -
 ...EnvironmentPropertySourceSecurityManagerIT.java |  87 ++--
 .../apache/logging/log4j/util/LoaderUtilTest.java  |   8 +-
 .../log4j/util/Log4jCharsetsPropertiesTest.java    |   5 +-
 ...ropertyFilePropertySourceSecurityManagerIT.java |  15 +-
 ...mPropertiesPropertySourceSecurityManagerIT.java |  99 +++--
 .../util/SystemPropertiesPropertySourceTest.java   |  15 +-
 .../log4j/message/ReusableSimpleMessage.java       |   1 -
 .../logging/log4j/message/StringMapMessage.java    |   7 +-
 .../log4j/message/StructuredDataMessage.java       |   7 +-
 .../logging/log4j/spi/AbstractLoggerAdapter.java   |   8 +-
 .../apache/logging/log4j/status/StatusData.java    |  14 +-
 .../log4j/util/EnvironmentPropertySource.java      |  70 ++--
 .../logging/log4j/util/PerformanceSensitive.java   |   1 -
 .../log4j/cassandra/CassandraExtension.java        |  20 +-
 .../log4j/core/test/CoreLoggerContexts.java        |   1 -
 .../log4j/core/appender/TlsSyslogAppenderTest.java |   6 +-
 .../core/async/perftest/ResponseTimeTest.java      |  14 +-
 .../core/net/ssl/SslConfigurationFactoryTest.java  |   6 +-
 .../java/org/apache/logging/log4j/core/Filter.java |   3 +-
 .../core/async/AsyncLoggerContextSelector.java     |   4 +-
 .../logging/log4j/core/async/DisruptorUtil.java    |  10 +-
 .../log4j/core/async/RingBufferLogEvent.java       |   7 +-
 .../core/async/ThreadNameCachingStrategy.java      | 171 ++++----
 .../log4j/core/config/ConfigurationSource.java     |  29 +-
 .../logging/log4j/core/config/HttpWatcher.java     |  12 +-
 .../core/config/ReliabilityStrategyFactory.java    |   1 -
 .../config/plugins/convert/CoreTypeConverters.java |  17 +-
 .../logging/log4j/core/filter/CompositeFilter.java |  12 +-
 .../core/filter/MutableThreadContextMapFilter.java |  23 +-
 .../log4j/core/filter/StructuredDataFilter.java    |  10 +-
 .../log4j/core/filter/ThreadContextMapFilter.java  |  14 +-
 .../logging/log4j/core/filter/TimeFilter.java      |  18 +-
 .../logging/log4j/core/impl/DefaultCallback.java   |   1 -
 .../log4j/core/impl/Log4jContextFactory.java       |  32 +-
 .../org/apache/logging/log4j/core/jmx/Server.java  |  72 ++--
 .../logging/log4j/core/layout/SyslogLayout.java    |  20 +-
 .../log4j/core/net/MulticastDnsAdvertiser.java     |  12 +-
 .../log4j/core/osgi/BundleContextSelector.java     |  12 +-
 .../core/pattern/AbstractStyleNameConverter.java   |  10 +-
 .../log4j/core/pattern/DatePatternConverter.java   |  14 +-
 .../core/pattern/EncodingPatternConverter.java     |   4 +-
 .../EqualsIgnoreCaseReplacementConverter.java      |   4 +-
 .../core/pattern/EqualsReplacementConverter.java   |   4 +-
 .../logging/log4j/core/pattern/FormattingInfo.java |  15 +-
 .../core/pattern/IntegerPatternConverter.java      |   4 +-
 .../log4j/core/pattern/LevelPatternConverter.java  |   8 +-
 .../log4j/core/pattern/MaxLengthConverter.java     |   5 +-
 .../pattern/SequenceNumberPatternConverter.java    |   4 +-
 .../logging/log4j/core/pattern/StyleConverter.java |   6 +-
 .../VariablesNotEmptyReplacementConverter.java     |   4 +-
 .../apache/logging/log4j/core/util/UuidUtil.java   |   1 -
 .../log4j/gctests/GcFreeLoggingTestUtil.java       |  21 +-
 .../jpa/converter/ThrowableAttributeConverter.java |   1 -
 .../apache/logging/log4j/jul/LevelTranslator.java  |   1 -
 .../template/json/util/RecyclerFactories.java      |   6 +-
 .../log4j/layout/template/json/util/Uris.java      |   8 +-
 .../perf/jmh/StringBuilderEscapeBenchmark.java     |   5 +-
 .../plugins/condition/OnPropertyCondition.java     |   5 +-
 .../logging/log4j/plugins/util/ResolverUtil.java   |  12 +-
 .../visit/PluginBuilderAttributeVisitor.java       |  15 +-
 .../logging/log4j/script/ScriptManagerImpl.java    |   1 -
 .../apache/logging/slf4j/Log4jLoggerFactory.java   |   4 +-
 .../logging/slf4j/SLF4JLoggerContextFactory.java   | 138 +++----
 70 files changed, 815 insertions(+), 840 deletions(-)

diff --git 
a/log4j-1.2-api/src/main/java/org/apache/log4j/BasicConfigurator.java 
b/log4j-1.2-api/src/main/java/org/apache/log4j/BasicConfigurator.java
index 14910d8b01..de42217421 100644
--- a/log4j-1.2-api/src/main/java/org/apache/log4j/BasicConfigurator.java
+++ b/log4j-1.2-api/src/main/java/org/apache/log4j/BasicConfigurator.java
@@ -20,12 +20,12 @@ import org.apache.logging.log4j.util.StackLocatorUtil;
 
 /**
  * Configures the package.
- * 
+ *
  * <p>
  * For file based configuration, see {@link PropertyConfigurator}. For XML 
based configuration, see
  * {@link org.apache.log4j.xml.DOMConfigurator DOMConfigurator}.
  * </p>
- * 
+ *
  * @since 0.8.1
  */
 public class BasicConfigurator {
diff --git a/log4j-1.2-api/src/main/java/org/apache/log4j/LogManager.java 
b/log4j-1.2-api/src/main/java/org/apache/log4j/LogManager.java
index 4d0bbd7568..26c19bd3de 100644
--- a/log4j-1.2-api/src/main/java/org/apache/log4j/LogManager.java
+++ b/log4j-1.2-api/src/main/java/org/apache/log4j/LogManager.java
@@ -1,224 +1,224 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache license, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the license for the specific language governing permissions and
- * limitations under the license.
- */
-package org.apache.log4j;
-
-import org.apache.log4j.legacy.core.ContextUtil;
-import org.apache.log4j.spi.DefaultRepositorySelector;
-import org.apache.log4j.spi.LoggerFactory;
-import org.apache.log4j.spi.LoggerRepository;
-import org.apache.log4j.spi.NOPLoggerRepository;
-import org.apache.log4j.spi.RepositorySelector;
-import org.apache.log4j.spi.RootLogger;
-import org.apache.logging.log4j.spi.LoggerContext;
-import org.apache.logging.log4j.util.LoaderUtil;
-import org.apache.logging.log4j.util.StackLocatorUtil;
-
-import java.util.Collections;
-import java.util.Enumeration;
-import java.util.stream.Collectors;
-
-/**
- * The main entry point to Log4j 1.
- */
-public final class LogManager {
-
-    /**
-     * @deprecated This variable is for internal use only. It will become 
package protected in future versions.
-     */
-    @Deprecated
-    public static final String DEFAULT_CONFIGURATION_FILE = "log4j.properties";
-
-    /**
-     * @deprecated This variable is for internal use only. It will become 
private in future versions.
-     */
-    @Deprecated
-    public static final String DEFAULT_CONFIGURATION_KEY = 
"log4j.configuration";
-
-    /**
-     * @deprecated This variable is for internal use only. It will become 
private in future versions.
-     */
-    @Deprecated
-    public static final String CONFIGURATOR_CLASS_KEY = 
"log4j.configuratorClass";
-
-    /**
-     * @deprecated This variable is for internal use only. It will become 
private in future versions.
-     */
-    @Deprecated
-    public static final String DEFAULT_INIT_OVERRIDE_KEY = 
"log4j.defaultInitOverride";
-
-    static final String DEFAULT_XML_CONFIGURATION_FILE = "log4j.xml";
-
-    static private RepositorySelector repositorySelector;
-
-    private static final boolean LOG4J_CORE_PRESENT;
-
-    static {
-        LOG4J_CORE_PRESENT = 
LoaderUtil.isClassAvailable("org.apache.logging.log4j.core.LoggerContext");
-        // By default, we use a DefaultRepositorySelector which always returns 
'hierarchy'.
-        final Hierarchy hierarchy = new Hierarchy(new RootLogger(Level.DEBUG));
-        repositorySelector = new DefaultRepositorySelector(hierarchy);
-    }
-
-    /**
-     * Tests if a logger for the given name exists.
-     *
-     * @param name logger name to test.
-     * @return whether a logger for the given name exists.
-     */
-    public static Logger exists(final String name) {
-        return exists(name, StackLocatorUtil.getCallerClassLoader(2));
-    }
-
-    static Logger exists(final String name, final ClassLoader classLoader) {
-        return getHierarchy().exists(name, classLoader);
-    }
-
-    /**
-     * Gets a LoggerContext.
-     *
-     * @param classLoader The ClassLoader for the context. If null the context 
will attempt to determine the appropriate
-     *        ClassLoader.
-     * @return a LoggerContext.
-     */
-    static LoggerContext getContext(final ClassLoader classLoader) {
-        return org.apache.logging.log4j.LogManager.getContext(classLoader, 
false);
-    }
-
-    /**
-     * Gets an enumeration of the current loggers.
-     *
-     * @return an enumeration of the current loggers.
-     */
-    @SuppressWarnings("rawtypes")
-    public static Enumeration getCurrentLoggers() {
-        return getCurrentLoggers(StackLocatorUtil.getCallerClassLoader(2));
-    }
-
-    @SuppressWarnings("rawtypes")
-    static Enumeration getCurrentLoggers(final ClassLoader classLoader) {
-        // @formatter:off
-        return Collections.enumeration(
-            LogManager.getContext(classLoader).getLoggerRegistry()
-                .getLoggers().stream().map(e -> 
LogManager.getLogger(e.getName(), classLoader))
-                .collect(Collectors.toList()));
-        // @formatter:on
-    }
-
-    static Hierarchy getHierarchy() {
-        final LoggerRepository loggerRepository = getLoggerRepository();
-        return loggerRepository instanceof Hierarchy ? (Hierarchy) 
loggerRepository : null;
-    }
-
-    /**
-     * Gets the logger for the given class.
-     */
-    public static Logger getLogger(final Class<?> clazz) {
-        final Hierarchy hierarchy = getHierarchy();
-        return hierarchy != null ? hierarchy.getLogger(clazz.getName(), 
StackLocatorUtil.getCallerClassLoader(2))
-            : getLoggerRepository().getLogger(clazz.getName());
-    }
-
-    /**
-     * Gets the logger for the given name.
-     */
-    public static Logger getLogger(final String name) {
-        final Hierarchy hierarchy = getHierarchy();
-        return hierarchy != null ? hierarchy.getLogger(name, 
StackLocatorUtil.getCallerClassLoader(2)) : 
getLoggerRepository().getLogger(name);
-    }
-
-    static Logger getLogger(final String name, final ClassLoader classLoader) {
-        final Hierarchy hierarchy = getHierarchy();
-        return hierarchy != null ? hierarchy.getLogger(name, classLoader) : 
getLoggerRepository().getLogger(name);
-    }
-
-    public static Logger getLogger(final String name, final LoggerFactory 
factory) {
-        final Hierarchy hierarchy = getHierarchy();
-        return hierarchy != null ? hierarchy.getLogger(name, factory, 
StackLocatorUtil.getCallerClassLoader(2))
-            : getLoggerRepository().getLogger(name, factory);
-    }
-
-    static Logger getLogger(final String name, final LoggerFactory factory, 
final ClassLoader classLoader) {
-        final Hierarchy hierarchy = getHierarchy();
-        return hierarchy != null ? hierarchy.getLogger(name, factory, 
classLoader) : getLoggerRepository().getLogger(name, factory);
-    }
-
-    public static LoggerRepository getLoggerRepository() {
-        if (repositorySelector == null) {
-            repositorySelector = new DefaultRepositorySelector(new 
NOPLoggerRepository());
-        }
-        return repositorySelector.getLoggerRepository();
-    }
-
-    /**
-     * Gets the root logger.
-     */
-    public static Logger getRootLogger() {
-        return getRootLogger(StackLocatorUtil.getCallerClassLoader(2));
-    }
-
-    static Logger getRootLogger(final ClassLoader classLoader) {
-        final Hierarchy hierarchy = getHierarchy();
-        return hierarchy != null ? hierarchy.getRootLogger(classLoader) : 
getLoggerRepository().getRootLogger();
-    }
-
-    static boolean isLog4jCorePresent() {
-        return LOG4J_CORE_PRESENT;
-    }
-
-    static void reconfigure(final ClassLoader classLoader) {
-        if (isLog4jCorePresent()) {
-            ContextUtil.reconfigure(LogManager.getContext(classLoader));
-        }
-    }
-
-    public static void resetConfiguration() {
-        resetConfiguration(StackLocatorUtil.getCallerClassLoader(2));
-    }
-
-    static void resetConfiguration(final ClassLoader classLoader) {
-        final Hierarchy hierarchy = getHierarchy();
-        if (hierarchy != null) {
-            hierarchy.resetConfiguration(classLoader);
-        } else {
-            getLoggerRepository().resetConfiguration();
-        }
-    }
-
-    public static void setRepositorySelector(final RepositorySelector 
selector, final Object guard) throws IllegalArgumentException {
-        if (selector == null) {
-            throw new IllegalArgumentException("RepositorySelector must be 
non-null.");
-        }
-        LogManager.repositorySelector = selector;
-    }
-
-    /**
-     * Shuts down the current configuration.
-     */
-    public static void shutdown() {
-        shutdown(StackLocatorUtil.getCallerClassLoader(2));
-    }
-
-    static void shutdown(final ClassLoader classLoader) {
-        final Hierarchy hierarchy = getHierarchy();
-        if (hierarchy != null) {
-            hierarchy.shutdown(classLoader);
-        } else {
-            getLoggerRepository().shutdown();
-        }
-    }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache license, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
+ */
+package org.apache.log4j;
+
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.stream.Collectors;
+
+import org.apache.log4j.legacy.core.ContextUtil;
+import org.apache.log4j.spi.DefaultRepositorySelector;
+import org.apache.log4j.spi.LoggerFactory;
+import org.apache.log4j.spi.LoggerRepository;
+import org.apache.log4j.spi.NOPLoggerRepository;
+import org.apache.log4j.spi.RepositorySelector;
+import org.apache.log4j.spi.RootLogger;
+import org.apache.logging.log4j.spi.LoggerContext;
+import org.apache.logging.log4j.util.LoaderUtil;
+import org.apache.logging.log4j.util.StackLocatorUtil;
+
+/**
+ * The main entry point to Log4j 1.
+ */
+public final class LogManager {
+
+    /**
+     * @deprecated This variable is for internal use only. It will become 
package protected in future versions.
+     */
+    @Deprecated
+    public static final String DEFAULT_CONFIGURATION_FILE = "log4j.properties";
+
+    /**
+     * @deprecated This variable is for internal use only. It will become 
private in future versions.
+     */
+    @Deprecated
+    public static final String DEFAULT_CONFIGURATION_KEY = 
"log4j.configuration";
+
+    /**
+     * @deprecated This variable is for internal use only. It will become 
private in future versions.
+     */
+    @Deprecated
+    public static final String CONFIGURATOR_CLASS_KEY = 
"log4j.configuratorClass";
+
+    /**
+     * @deprecated This variable is for internal use only. It will become 
private in future versions.
+     */
+    @Deprecated
+    public static final String DEFAULT_INIT_OVERRIDE_KEY = 
"log4j.defaultInitOverride";
+
+    static final String DEFAULT_XML_CONFIGURATION_FILE = "log4j.xml";
+
+    static private RepositorySelector repositorySelector;
+
+    private static final boolean LOG4J_CORE_PRESENT;
+
+    static {
+        LOG4J_CORE_PRESENT = 
LoaderUtil.isClassAvailable("org.apache.logging.log4j.core.LoggerContext");
+        // By default, we use a DefaultRepositorySelector which always returns 
'hierarchy'.
+        final Hierarchy hierarchy = new Hierarchy(new RootLogger(Level.DEBUG));
+        repositorySelector = new DefaultRepositorySelector(hierarchy);
+    }
+
+    /**
+     * Tests if a logger for the given name exists.
+     *
+     * @param name logger name to test.
+     * @return whether a logger for the given name exists.
+     */
+    public static Logger exists(final String name) {
+        return exists(name, StackLocatorUtil.getCallerClassLoader(2));
+    }
+
+    static Logger exists(final String name, final ClassLoader classLoader) {
+        return getHierarchy().exists(name, classLoader);
+    }
+
+    /**
+     * Gets a LoggerContext.
+     *
+     * @param classLoader The ClassLoader for the context. If null the context 
will attempt to determine the appropriate
+     *        ClassLoader.
+     * @return a LoggerContext.
+     */
+    static LoggerContext getContext(final ClassLoader classLoader) {
+        return org.apache.logging.log4j.LogManager.getContext(classLoader, 
false);
+    }
+
+    /**
+     * Gets an enumeration of the current loggers.
+     *
+     * @return an enumeration of the current loggers.
+     */
+    @SuppressWarnings("rawtypes")
+    public static Enumeration getCurrentLoggers() {
+        return getCurrentLoggers(StackLocatorUtil.getCallerClassLoader(2));
+    }
+
+    @SuppressWarnings("rawtypes")
+    static Enumeration getCurrentLoggers(final ClassLoader classLoader) {
+        // @formatter:off
+        return Collections.enumeration(
+            LogManager.getContext(classLoader).getLoggerRegistry()
+                .getLoggers().stream().map(e -> 
LogManager.getLogger(e.getName(), classLoader))
+                .collect(Collectors.toList()));
+        // @formatter:on
+    }
+
+    static Hierarchy getHierarchy() {
+        final LoggerRepository loggerRepository = getLoggerRepository();
+        return loggerRepository instanceof Hierarchy ? (Hierarchy) 
loggerRepository : null;
+    }
+
+    /**
+     * Gets the logger for the given class.
+     */
+    public static Logger getLogger(final Class<?> clazz) {
+        final Hierarchy hierarchy = getHierarchy();
+        return hierarchy != null ? hierarchy.getLogger(clazz.getName(), 
StackLocatorUtil.getCallerClassLoader(2))
+            : getLoggerRepository().getLogger(clazz.getName());
+    }
+
+    /**
+     * Gets the logger for the given name.
+     */
+    public static Logger getLogger(final String name) {
+        final Hierarchy hierarchy = getHierarchy();
+        return hierarchy != null ? hierarchy.getLogger(name, 
StackLocatorUtil.getCallerClassLoader(2)) : 
getLoggerRepository().getLogger(name);
+    }
+
+    static Logger getLogger(final String name, final ClassLoader classLoader) {
+        final Hierarchy hierarchy = getHierarchy();
+        return hierarchy != null ? hierarchy.getLogger(name, classLoader) : 
getLoggerRepository().getLogger(name);
+    }
+
+    public static Logger getLogger(final String name, final LoggerFactory 
factory) {
+        final Hierarchy hierarchy = getHierarchy();
+        return hierarchy != null ? hierarchy.getLogger(name, factory, 
StackLocatorUtil.getCallerClassLoader(2))
+            : getLoggerRepository().getLogger(name, factory);
+    }
+
+    static Logger getLogger(final String name, final LoggerFactory factory, 
final ClassLoader classLoader) {
+        final Hierarchy hierarchy = getHierarchy();
+        return hierarchy != null ? hierarchy.getLogger(name, factory, 
classLoader) : getLoggerRepository().getLogger(name, factory);
+    }
+
+    public static LoggerRepository getLoggerRepository() {
+        if (repositorySelector == null) {
+            repositorySelector = new DefaultRepositorySelector(new 
NOPLoggerRepository());
+        }
+        return repositorySelector.getLoggerRepository();
+    }
+
+    /**
+     * Gets the root logger.
+     */
+    public static Logger getRootLogger() {
+        return getRootLogger(StackLocatorUtil.getCallerClassLoader(2));
+    }
+
+    static Logger getRootLogger(final ClassLoader classLoader) {
+        final Hierarchy hierarchy = getHierarchy();
+        return hierarchy != null ? hierarchy.getRootLogger(classLoader) : 
getLoggerRepository().getRootLogger();
+    }
+
+    static boolean isLog4jCorePresent() {
+        return LOG4J_CORE_PRESENT;
+    }
+
+    static void reconfigure(final ClassLoader classLoader) {
+        if (isLog4jCorePresent()) {
+            ContextUtil.reconfigure(LogManager.getContext(classLoader));
+        }
+    }
+
+    public static void resetConfiguration() {
+        resetConfiguration(StackLocatorUtil.getCallerClassLoader(2));
+    }
+
+    static void resetConfiguration(final ClassLoader classLoader) {
+        final Hierarchy hierarchy = getHierarchy();
+        if (hierarchy != null) {
+            hierarchy.resetConfiguration(classLoader);
+        } else {
+            getLoggerRepository().resetConfiguration();
+        }
+    }
+
+    public static void setRepositorySelector(final RepositorySelector 
selector, final Object guard) throws IllegalArgumentException {
+        if (selector == null) {
+            throw new IllegalArgumentException("RepositorySelector must be 
non-null.");
+        }
+        LogManager.repositorySelector = selector;
+    }
+
+    /**
+     * Shuts down the current configuration.
+     */
+    public static void shutdown() {
+        shutdown(StackLocatorUtil.getCallerClassLoader(2));
+    }
+
+    static void shutdown(final ClassLoader classLoader) {
+        final Hierarchy hierarchy = getHierarchy();
+        if (hierarchy != null) {
+            hierarchy.shutdown(classLoader);
+        } else {
+            getLoggerRepository().shutdown();
+        }
+    }
+
+}
diff --git a/log4j-1.2-api/src/main/java/org/apache/log4j/Logger.java 
b/log4j-1.2-api/src/main/java/org/apache/log4j/Logger.java
index 19c523ea29..b152e2b757 100644
--- a/log4j-1.2-api/src/main/java/org/apache/log4j/Logger.java
+++ b/log4j-1.2-api/src/main/java/org/apache/log4j/Logger.java
@@ -29,7 +29,7 @@ public class Logger extends Category {
      * The fully qualified name of the Logger class.
      */
     private static final String FQCN = Logger.class.getName();
- 
+
     public static Logger getLogger(final Class<?> clazz) {
         // Depth 2 gets the call site of this method.
         return LogManager.getLogger(clazz.getName(), 
StackLocatorUtil.getCallerClassLoader(2));
@@ -37,7 +37,7 @@ public class Logger extends Category {
 
     public static Logger getLogger(final String name) {
         // Depth 2 gets the call site of this method.
-        return LogManager.getLogger(name, 
StackLocatorUtil.getCallerClassLoader(2)); 
+        return LogManager.getLogger(name, 
StackLocatorUtil.getCallerClassLoader(2));
     }
 
     public static Logger getLogger(final String name, final LoggerFactory 
factory) {
diff --git 
a/log4j-1.2-api/src/main/java/org/apache/log4j/config/PropertiesConfigurationFactory.java
 
b/log4j-1.2-api/src/main/java/org/apache/log4j/config/PropertiesConfigurationFactory.java
index c9e6487ee3..bf8f1cab2e 100644
--- 
a/log4j-1.2-api/src/main/java/org/apache/log4j/config/PropertiesConfigurationFactory.java
+++ 
b/log4j-1.2-api/src/main/java/org/apache/log4j/config/PropertiesConfigurationFactory.java
@@ -1,20 +1,19 @@
 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
+ * contributor license agreements. See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
+ * The ASF licenses this file to You under the Apache license, Version 2.0
  * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
+ * the License. You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
  */
-
 package org.apache.log4j.config;
 
 import org.apache.logging.log4j.core.LoggerContext;
diff --git 
a/log4j-1.2-api/src/main/java/org/apache/log4j/layout/Log4j1SyslogLayout.java 
b/log4j-1.2-api/src/main/java/org/apache/log4j/layout/Log4j1SyslogLayout.java
index eda97d292d..1a504492b5 100644
--- 
a/log4j-1.2-api/src/main/java/org/apache/log4j/layout/Log4j1SyslogLayout.java
+++ 
b/log4j-1.2-api/src/main/java/org/apache/log4j/layout/Log4j1SyslogLayout.java
@@ -16,6 +16,12 @@
  */
 package org.apache.log4j.layout;
 
+import java.io.Serializable;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+
 import org.apache.logging.log4j.core.Layout;
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.StringLayout;
@@ -32,12 +38,6 @@ import 
org.apache.logging.log4j.plugins.PluginBuilderAttribute;
 import org.apache.logging.log4j.plugins.PluginElement;
 import org.apache.logging.log4j.util.Chars;
 
-import java.io.Serializable;
-import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
-import java.util.Map;
-
 /**
  * Port of the layout used by SyslogAppender in Log4j 1.x. Provided for
  * compatibility with existing Log4j 1 configurations.
diff --git 
a/log4j-1.2-api/src/main/java/org/apache/log4j/xml/XmlConfigurationFactory.java 
b/log4j-1.2-api/src/main/java/org/apache/log4j/xml/XmlConfigurationFactory.java
index 8521f0dbfb..dfe157684d 100644
--- 
a/log4j-1.2-api/src/main/java/org/apache/log4j/xml/XmlConfigurationFactory.java
+++ 
b/log4j-1.2-api/src/main/java/org/apache/log4j/xml/XmlConfigurationFactory.java
@@ -1,20 +1,19 @@
 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
+ * contributor license agreements. See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
+ * The ASF licenses this file to You under the Apache license, Version 2.0
  * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
+ * the License. You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
  */
-
 package org.apache.log4j.xml;
 
 import org.apache.log4j.config.Log4j1Configuration;
diff --git 
a/log4j-api-test/src/main/java/org/apache/logging/log4j/test/junit/ClassMatchers.java
 
b/log4j-api-test/src/main/java/org/apache/logging/log4j/test/junit/ClassMatchers.java
index 0d814f62e9..d83ee72fd2 100644
--- 
a/log4j-api-test/src/main/java/org/apache/logging/log4j/test/junit/ClassMatchers.java
+++ 
b/log4j-api-test/src/main/java/org/apache/logging/log4j/test/junit/ClassMatchers.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.test.junit;
 
 import org.apache.logging.log4j.util.LoaderUtil;
diff --git 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/EnvironmentPropertySourceSecurityManagerIT.java
 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/EnvironmentPropertySourceSecurityManagerIT.java
index eebb0a73aa..24b0da537b 100644
--- 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/EnvironmentPropertySourceSecurityManagerIT.java
+++ 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/EnvironmentPropertySourceSecurityManagerIT.java
@@ -14,16 +14,15 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.util;
 
+import java.security.Permission;
+
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledForJreRange;
 import org.junit.jupiter.api.condition.JRE;
 import org.junit.jupiter.api.parallel.ResourceLock;
 
-import java.security.Permission;
-
 /**
  * Tests <a 
href="https://issues.apache.org/jira/browse/LOG4J2-2274";>LOG4J2-2274</a>.
  * <p>
@@ -31,7 +30,7 @@ import java.security.Permission;
  * integration tests (classes that end in "IT" instead of "Test" and
  * "TestCase".)
  * </p>
- * 
+ *
  * @see EnvironmentPropertySource
  * @see SecurityManager
  * @see System#setSecurityManager(SecurityManager)
@@ -40,45 +39,45 @@ import java.security.Permission;
 @DisabledForJreRange(min = JRE.JAVA_18) // custom SecurityManager instances 
throw UnsupportedOperationException
 public class EnvironmentPropertySourceSecurityManagerIT {
 
-       /**
-        * Always throws a SecurityException for any environment variables 
permission
-        * check.
-        */
-       private static class TestSecurityManager extends SecurityManager {
-               @Override
-               public void checkPermission(final Permission permission) {
-                       if ("getenv.*".equals(permission.getName())) {
-                               throw new SecurityException();
-                       }
-               }
-       }
+    /**
+     * Always throws a SecurityException for any environment variables 
permission
+     * check.
+     */
+    private static class TestSecurityManager extends SecurityManager {
+        @Override
+        public void checkPermission(final Permission permission) {
+            if ("getenv.*".equals(permission.getName())) {
+                throw new SecurityException();
+            }
+        }
+    }
 
-       /**
-        * Makes sure we do not blow up with exception below due to a security 
manager
-        * rejecting environment variable access in {@link 
EnvironmentPropertySource}.
-        * 
-        * <pre>
-        * java.lang.NoClassDefFoundError: Could not initialize class 
org.apache.logging.log4j.util.PropertiesUtil
-        *     at 
org.apache.logging.log4j.status.StatusLogger.<clinit>(StatusLogger.java:78)
-        *     at 
org.apache.logging.log4j.core.AbstractLifeCycle.<clinit>(AbstractLifeCycle.java:38)
-        *     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)
-        *     at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
-        *     at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
-        *     at 
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
-        *     at 
org.apache.logging.log4j.core.config.builder.impl.DefaultConfigurationBuilder.build(DefaultConfigurationBuilder.java:172)
-        *     at 
org.apache.logging.log4j.core.config.builder.impl.DefaultConfigurationBuilder.build(DefaultConfigurationBuilder.java:161)
-        *     at 
org.apache.logging.log4j.core.config.builder.impl.DefaultConfigurationBuilder.build(DefaultConfigurationBuilder.java:1)
-        *     at 
org.apache.logging.log4j.util.EnvironmentPropertySourceSecurityManagerTest.test(EnvironmentPropertySourceSecurityManagerTest.java:55)
-        * </pre>
-        */
-       @Test
-       public void test() {
-               var existing = System.getSecurityManager();
-               try {
-                       System.setSecurityManager(new TestSecurityManager());
-                       PropertiesUtil.getProperties();
-               } finally {
-                       System.setSecurityManager(existing);
-               }
-       }
+    /**
+     * Makes sure we do not blow up with exception below due to a security 
manager
+     * rejecting environment variable access in {@link 
EnvironmentPropertySource}.
+     *
+     * <pre>
+     * java.lang.NoClassDefFoundError: Could not initialize class 
org.apache.logging.log4j.util.PropertiesUtil
+     *     at 
org.apache.logging.log4j.status.StatusLogger.<clinit>(StatusLogger.java:78)
+     *     at 
org.apache.logging.log4j.core.AbstractLifeCycle.<clinit>(AbstractLifeCycle.java:38)
+     *     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)
+     *     at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
+     *     at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
+     *     at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
+     *     at 
org.apache.logging.log4j.core.config.builder.impl.DefaultConfigurationBuilder.build(DefaultConfigurationBuilder.java:172)
+     *     at 
org.apache.logging.log4j.core.config.builder.impl.DefaultConfigurationBuilder.build(DefaultConfigurationBuilder.java:161)
+     *     at 
org.apache.logging.log4j.core.config.builder.impl.DefaultConfigurationBuilder.build(DefaultConfigurationBuilder.java:1)
+     *     at 
org.apache.logging.log4j.util.EnvironmentPropertySourceSecurityManagerTest.test(EnvironmentPropertySourceSecurityManagerTest.java:55)
+     * </pre>
+     */
+    @Test
+    public void test() {
+        var existing = System.getSecurityManager();
+        try {
+            System.setSecurityManager(new TestSecurityManager());
+            PropertiesUtil.getProperties();
+        } finally {
+            System.setSecurityManager(existing);
+        }
+    }
 }
diff --git 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/LoaderUtilTest.java
 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/LoaderUtilTest.java
index 675c54f33e..13700572d3 100644
--- 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/LoaderUtilTest.java
+++ 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/LoaderUtilTest.java
@@ -16,15 +16,15 @@
  */
 package org.apache.logging.log4j.util;
 
+import java.net.URL;
+import java.util.Collections;
+import java.util.Enumeration;
+
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junitpioneer.jupiter.ReadsSystemProperty;
 
-import java.net.URL;
-import java.util.Collections;
-import java.util.Enumeration;
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 @ReadsSystemProperty
diff --git 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/Log4jCharsetsPropertiesTest.java
 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/Log4jCharsetsPropertiesTest.java
index 5666fa321d..7e2b48ccfe 100644
--- 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/Log4jCharsetsPropertiesTest.java
+++ 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/Log4jCharsetsPropertiesTest.java
@@ -14,15 +14,14 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.util;
 
-import org.junit.jupiter.api.Test;
-
 import java.nio.charset.Charset;
 import java.util.Enumeration;
 import java.util.ResourceBundle;
 
+import org.junit.jupiter.api.Test;
+
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
diff --git 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/PropertyFilePropertySourceSecurityManagerIT.java
 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/PropertyFilePropertySourceSecurityManagerIT.java
index 40cdcb611f..8d137efa84 100644
--- 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/PropertyFilePropertySourceSecurityManagerIT.java
+++ 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/PropertyFilePropertySourceSecurityManagerIT.java
@@ -14,20 +14,19 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.util;
 
+import java.io.FilePermission;
+import java.nio.file.Paths;
+import java.security.Permission;
+import java.util.PropertyPermission;
+
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledForJreRange;
 import org.junit.jupiter.api.condition.JRE;
 import org.junit.jupiter.api.parallel.ResourceLock;
 
-import java.io.FilePermission;
-import java.nio.file.Paths;
-import java.security.Permission;
-import java.util.PropertyPermission;
-
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
@@ -37,7 +36,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * integration tests (classes that end in "IT" instead of "Test" and
  * "TestCase".)
  * </p>
- * 
+ *
  * @see PropertyFilePropertySource
  * @see SecurityManager
  * @see System#setSecurityManager(SecurityManager)
@@ -72,7 +71,7 @@ public class PropertyFilePropertySourceSecurityManagerIT {
      * Makes sure we do not blow up with exception below due to a security 
manager
      * rejecting environment variable access in
      * {@link SystemPropertiesPropertySource}.
-     * 
+     *
      * <pre>
      * </pre>
      */
diff --git 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceSecurityManagerIT.java
 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceSecurityManagerIT.java
index d4df643cf2..439a3788b4 100644
--- 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceSecurityManagerIT.java
+++ 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceSecurityManagerIT.java
@@ -14,17 +14,16 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.util;
 
+import java.security.Permission;
+import java.util.PropertyPermission;
+
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledForJreRange;
 import org.junit.jupiter.api.condition.JRE;
 import org.junit.jupiter.api.parallel.ResourceLock;
 
-import java.security.Permission;
-import java.util.PropertyPermission;
-
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
@@ -34,7 +33,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * integration tests (classes that end in "IT" instead of "Test" and
  * "TestCase".)
  * </p>
- * 
+ *
  * @see SystemPropertiesPropertySource
  * @see SecurityManager
  * @see System#setSecurityManager(SecurityManager)
@@ -44,50 +43,50 @@ import static org.assertj.core.api.Assertions.assertThat;
 @DisabledForJreRange(min = JRE.JAVA_18) // custom SecurityManager instances 
throw UnsupportedOperationException
 public class SystemPropertiesPropertySourceSecurityManagerIT {
 
-       /**
-        * Always throws a SecurityException for any environment variables 
permission
-        * check.
-        */
-       private static class TestSecurityManager extends SecurityManager {
-               @Override
-               public void checkPermission(final Permission permission) {
-                       if (permission instanceof PropertyPermission) {
-                               throw new SecurityException();
-                       }
-               }
-       }
+    /**
+     * Always throws a SecurityException for any environment variables 
permission
+     * check.
+     */
+    private static class TestSecurityManager extends SecurityManager {
+        @Override
+        public void checkPermission(final Permission permission) {
+            if (permission instanceof PropertyPermission) {
+                throw new SecurityException();
+            }
+        }
+    }
 
-       /**
-        * Makes sure we do not blow up with exception below due to a security 
manager
-        * rejecting environment variable access in
-        * {@link SystemPropertiesPropertySource}.
-        * 
-        * <pre>
-        * java.lang.ExceptionInInitializerError
-        *      at 
org.apache.logging.log4j.util.SystemPropertiesPropertySourceSecurityManagerTest.test(SystemPropertiesPropertySourceSecurityManagerTest.java:64)
-        *      ...
-        * Caused by: java.lang.SecurityException
-        *      at 
org.apache.logging.log4j.util.SystemPropertiesPropertySourceSecurityManagerTest$TestSecurityManager.checkPermission(SystemPropertiesPropertySourceSecurityManagerTest.java:49)
-        *      at 
java.lang.SecurityManager.checkPropertiesAccess(SecurityManager.java:1265)
-        *      at java.lang.System.getProperties(System.java:624)
-        *      at 
org.apache.logging.log4j.util.SystemPropertiesPropertySource.forEach(SystemPropertiesPropertySource.java:40)
-        *      at 
org.apache.logging.log4j.util.PropertiesUtil$Environment.reload(PropertiesUtil.java:330)
-        *      at 
org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>(PropertiesUtil.java:322)
-        *      at 
org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>(PropertiesUtil.java:310)
-        *      at 
org.apache.logging.log4j.util.PropertiesUtil.<init>(PropertiesUtil.java:69)
-        *      at 
org.apache.logging.log4j.util.PropertiesUtil.<clinit>(PropertiesUtil.java:49)
-        *      ... 26 more
-        * </pre>
-        */
-       @Test
-       public void test() {
-               var existing = System.getSecurityManager();
-               try {
-                       System.setSecurityManager(new TestSecurityManager());
-                       final PropertiesUtil propertiesUtil = new 
PropertiesUtil("src/test/resources/PropertiesUtilTest.properties");
-                       
assertThat(propertiesUtil.getStringProperty("a.1")).isNull();
-               } finally {
-                       System.setSecurityManager(existing);
-               }
-       }
+    /**
+     * Makes sure we do not blow up with exception below due to a security 
manager
+     * rejecting environment variable access in
+     * {@link SystemPropertiesPropertySource}.
+     *
+     * <pre>
+     * java.lang.ExceptionInInitializerError
+     *         at 
org.apache.logging.log4j.util.SystemPropertiesPropertySourceSecurityManagerTest.test(SystemPropertiesPropertySourceSecurityManagerTest.java:64)
+     *         ...
+     * Caused by: java.lang.SecurityException
+     *         at 
org.apache.logging.log4j.util.SystemPropertiesPropertySourceSecurityManagerTest$TestSecurityManager.checkPermission(SystemPropertiesPropertySourceSecurityManagerTest.java:49)
+     *         at 
java.lang.SecurityManager.checkPropertiesAccess(SecurityManager.java:1265)
+     *         at java.lang.System.getProperties(System.java:624)
+     *         at 
org.apache.logging.log4j.util.SystemPropertiesPropertySource.forEach(SystemPropertiesPropertySource.java:40)
+     *         at 
org.apache.logging.log4j.util.PropertiesUtil$Environment.reload(PropertiesUtil.java:330)
+     *         at 
org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>(PropertiesUtil.java:322)
+     *         at 
org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>(PropertiesUtil.java:310)
+     *         at 
org.apache.logging.log4j.util.PropertiesUtil.<init>(PropertiesUtil.java:69)
+     *         at 
org.apache.logging.log4j.util.PropertiesUtil.<clinit>(PropertiesUtil.java:49)
+     *         ... 26 more
+     * </pre>
+     */
+    @Test
+    public void test() {
+        var existing = System.getSecurityManager();
+        try {
+            System.setSecurityManager(new TestSecurityManager());
+            final PropertiesUtil propertiesUtil = new 
PropertiesUtil("src/test/resources/PropertiesUtilTest.properties");
+            assertThat(propertiesUtil.getStringProperty("a.1")).isNull();
+        } finally {
+            System.setSecurityManager(existing);
+        }
+    }
 }
diff --git 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceTest.java
 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceTest.java
index bd06806b8a..3b568d8726 100644
--- 
a/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceTest.java
+++ 
b/log4j-api-test/src/test/java/org/apache/logging/log4j/util/SystemPropertiesPropertySourceTest.java
@@ -14,19 +14,18 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.util;
 
-import org.junit.jupiter.api.Tag;
-import org.junit.jupiter.api.Test;
-import org.junitpioneer.jupiter.WritesSystemProperty;
-
 import java.util.Properties;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 
+import org.junit.jupiter.api.Tag;
+import org.junit.jupiter.api.Test;
+import org.junitpioneer.jupiter.WritesSystemProperty;
+
 /**
  * Tests <a 
href="https://issues.apache.org/jira/browse/LOG4J2-2276";>LOG4J2-2276</a>.
  */
@@ -38,15 +37,15 @@ public class SystemPropertiesPropertySourceTest {
 
     /**
      * Tests avoiding a ConcurrentModificationException. For example:
-     * 
+     *
      * <pre>
      * java.util.ConcurrentModificationException
      *  at java.util.Hashtable$Enumerator.next(Hashtable.java:1167)
      *  at 
org.apache.logging.log4j.util.SystemPropertiesPropertySource.forEach(SystemPropertiesPropertySource.java:38)
      *  at 
org.apache.logging.log4j.util.SystemPropertiesPropertySourceTest.testMultiThreadedAccess(SystemPropertiesPropertySourceTest.java:47)
      * </pre>
-     * @throws InterruptedException 
-     * @throws ExecutionException 
+     * @throws InterruptedException
+     * @throws ExecutionException
      */
     @Test
     public void testMultiThreadedAccess() throws InterruptedException, 
ExecutionException {
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/message/ReusableSimpleMessage.java
 
b/log4j-api/src/main/java/org/apache/logging/log4j/message/ReusableSimpleMessage.java
index 97af509a31..4ff32e9893 100644
--- 
a/log4j-api/src/main/java/org/apache/logging/log4j/message/ReusableSimpleMessage.java
+++ 
b/log4j-api/src/main/java/org/apache/logging/log4j/message/ReusableSimpleMessage.java
@@ -111,4 +111,3 @@ public class ReusableSimpleMessage implements 
ReusableMessage, CharSequence, Par
         charSequence = null;
     }
 }
-
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/message/StringMapMessage.java
 
b/log4j-api/src/main/java/org/apache/logging/log4j/message/StringMapMessage.java
index 9d05ce05b3..c175dd13de 100644
--- 
a/log4j-api/src/main/java/org/apache/logging/log4j/message/StringMapMessage.java
+++ 
b/log4j-api/src/main/java/org/apache/logging/log4j/message/StringMapMessage.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.message;
 
 import java.util.Map;
@@ -23,7 +22,7 @@ import org.apache.logging.log4j.util.PerformanceSensitive;
 
 /**
  * A {@link StringMapMessage} typed to {@link String}-only values. This is 
like the MapMessage class before 2.9.
- * 
+ *
  * @since 2.9
  */
 @PerformanceSensitive("allocation")
@@ -41,7 +40,7 @@ public class StringMapMessage extends 
MapMessage<StringMapMessage, String> {
 
     /**
      * Constructs a new instance.
-     * 
+     *
      * @param initialCapacity
      *            the initial capacity.
      */
@@ -51,7 +50,7 @@ public class StringMapMessage extends 
MapMessage<StringMapMessage, String> {
 
     /**
      * Constructs a new instance based on an existing Map.
-     * 
+     *
      * @param map
      *            The Map.
      */
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/message/StructuredDataMessage.java
 
b/log4j-api/src/main/java/org/apache/logging/log4j/message/StructuredDataMessage.java
index a2ba89a96a..7c5dbfcfda 100644
--- 
a/log4j-api/src/main/java/org/apache/logging/log4j/message/StructuredDataMessage.java
+++ 
b/log4j-api/src/main/java/org/apache/logging/log4j/message/StructuredDataMessage.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.message;
 
 import java.util.Map;
@@ -83,7 +82,7 @@ public class StructuredDataMessage extends 
MapMessage<StructuredDataMessage, Str
         this.type = type;
         this.maxLength = maxLength;
     }
-    
+
     /**
      * Creates a StructuredDataMessage using an ID (max 32 characters), 
message, type (max 32 characters), and an
      * initial map of structured data to include.
@@ -464,7 +463,7 @@ public class StructuredDataMessage extends 
MapMessage<StructuredDataMessage, Str
     protected void validate(final String key, final char value) {
         validateKey(key);
     }
-    
+
     /**
      * @since 2.9
      */
@@ -472,7 +471,7 @@ public class StructuredDataMessage extends 
MapMessage<StructuredDataMessage, Str
     protected void validate(final String key, final double value) {
         validateKey(key);
     }
-    
+
     /**
      * @since 2.9
      */
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/spi/AbstractLoggerAdapter.java
 
b/log4j-api/src/main/java/org/apache/logging/log4j/spi/AbstractLoggerAdapter.java
index 2434955c90..76b816e8c3 100644
--- 
a/log4j-api/src/main/java/org/apache/logging/log4j/spi/AbstractLoggerAdapter.java
+++ 
b/log4j-api/src/main/java/org/apache/logging/log4j/spi/AbstractLoggerAdapter.java
@@ -16,9 +16,6 @@
  */
 package org.apache.logging.log4j.spi;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.util.LoaderUtil;
-
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
@@ -27,9 +24,12 @@ import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.locks.ReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.util.LoaderUtil;
+
 /**
  * Provides an abstract base class to use for implementing LoggerAdapter.
- * 
+ *
  * @param <L> the Logger class to adapt
  * @since 2.1
  */
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/status/StatusData.java 
b/log4j-api/src/main/java/org/apache/logging/log4j/status/StatusData.java
index 469610d7e8..9cd0fff546 100644
--- a/log4j-api/src/main/java/org/apache/logging/log4j/status/StatusData.java
+++ b/log4j-api/src/main/java/org/apache/logging/log4j/status/StatusData.java
@@ -43,7 +43,7 @@ public class StatusData implements Serializable {
 
     /**
      * Creates the StatusData object.
-     * 
+     *
      * @param caller The method that created the event.
      * @param level The logging level.
      * @param msg The message String.
@@ -62,7 +62,7 @@ public class StatusData implements Serializable {
 
     /**
      * Returns the event's timestamp.
-     * 
+     *
      * @return The event's timestamp.
      */
     public long getTimestamp() {
@@ -71,7 +71,7 @@ public class StatusData implements Serializable {
 
     /**
      * Returns the StackTraceElement for the method that created the event.
-     * 
+     *
      * @return The StackTraceElement.
      */
     public StackTraceElement getStackTraceElement() {
@@ -80,7 +80,7 @@ public class StatusData implements Serializable {
 
     /**
      * Returns the logging level for the event.
-     * 
+     *
      * @return The logging level.
      */
     public Level getLevel() {
@@ -89,7 +89,7 @@ public class StatusData implements Serializable {
 
     /**
      * Returns the message associated with the event.
-     * 
+     *
      * @return The message associated with the event.
      */
     public Message getMessage() {
@@ -105,7 +105,7 @@ public class StatusData implements Serializable {
 
     /**
      * Returns the Throwable associated with the event.
-     * 
+     *
      * @return The Throwable associated with the event.
      */
     public Throwable getThrowable() {
@@ -114,7 +114,7 @@ public class StatusData implements Serializable {
 
     /**
      * Formats the StatusData for viewing.
-     * 
+     *
      * @return The formatted status data as a String.
      */
     public String getFormattedStatus() {
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/util/EnvironmentPropertySource.java
 
b/log4j-api/src/main/java/org/apache/logging/log4j/util/EnvironmentPropertySource.java
index 65ca8b694f..3fd116efe3 100644
--- 
a/log4j-api/src/main/java/org/apache/logging/log4j/util/EnvironmentPropertySource.java
+++ 
b/log4j-api/src/main/java/org/apache/logging/log4j/util/EnvironmentPropertySource.java
@@ -30,13 +30,13 @@ import java.util.Map;
  */
 public class EnvironmentPropertySource implements PropertySource {
 
-       private static final String PREFIX = "LOG4J_";
-       private static final int DEFAULT_PRIORITY = 100;
+    private static final String PREFIX = "LOG4J_";
+    private static final int DEFAULT_PRIORITY = 100;
 
-       @Override
-       public int getPriority() {
-               return DEFAULT_PRIORITY;
-       }
+    @Override
+    public int getPriority() {
+        return DEFAULT_PRIORITY;
+    }
 
     private void logException(SecurityException e) {
         // There is no status logger yet.
@@ -44,36 +44,36 @@ public class EnvironmentPropertySource implements 
PropertySource {
                 "The system environment variables are not available to Log4j 
due to security restrictions: " + e, e);
     }
 
-       @Override
-       public void forEach(final BiConsumer<String, String> action) {
-               final Map<String, String> getenv;
-               try {
-                       getenv = System.getenv();
-               } catch (final SecurityException e) {
-                       logException(e);
-                       return;
-               }
-               for (final Map.Entry<String, String> entry : getenv.entrySet()) 
{
-                       final String key = entry.getKey();
-                       if (key.startsWith(PREFIX)) {
-                               action.accept(key.substring(PREFIX.length()), 
entry.getValue());
-                       }
-               }
-       }
+    @Override
+    public void forEach(final BiConsumer<String, String> action) {
+        final Map<String, String> getenv;
+        try {
+            getenv = System.getenv();
+        } catch (final SecurityException e) {
+            logException(e);
+            return;
+        }
+        for (final Map.Entry<String, String> entry : getenv.entrySet()) {
+            final String key = entry.getKey();
+            if (key.startsWith(PREFIX)) {
+                action.accept(key.substring(PREFIX.length()), 
entry.getValue());
+            }
+        }
+    }
 
-       @Override
-       public CharSequence getNormalForm(final Iterable<? extends 
CharSequence> tokens) {
-               final StringBuilder sb = new StringBuilder("LOG4J");
-               boolean empty = true;
-               for (final CharSequence token : tokens) {
-                       empty = false;
-                       sb.append('_');
-                       for (int i = 0; i < token.length(); i++) {
-                               
sb.append(Character.toUpperCase(token.charAt(i)));
-                       }
-               }
-               return empty ? null : sb.toString();
-       }
+    @Override
+    public CharSequence getNormalForm(final Iterable<? extends CharSequence> 
tokens) {
+        final StringBuilder sb = new StringBuilder("LOG4J");
+        boolean empty = true;
+        for (final CharSequence token : tokens) {
+            empty = false;
+            sb.append('_');
+            for (int i = 0; i < token.length(); i++) {
+                sb.append(Character.toUpperCase(token.charAt(i)));
+            }
+        }
+        return empty ? null : sb.toString();
+    }
 
     @Override
     public Collection<String> getPropertyNames() {
diff --git 
a/log4j-api/src/main/java/org/apache/logging/log4j/util/PerformanceSensitive.java
 
b/log4j-api/src/main/java/org/apache/logging/log4j/util/PerformanceSensitive.java
index 837347cf6f..3d7f1f16e2 100644
--- 
a/log4j-api/src/main/java/org/apache/logging/log4j/util/PerformanceSensitive.java
+++ 
b/log4j-api/src/main/java/org/apache/logging/log4j/util/PerformanceSensitive.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.util;
 
 import java.lang.annotation.Retention;
diff --git 
a/log4j-cassandra/src/test/java/org/apache/logging/log4j/cassandra/CassandraExtension.java
 
b/log4j-cassandra/src/test/java/org/apache/logging/log4j/cassandra/CassandraExtension.java
index 38503c428a..4f17e12e95 100644
--- 
a/log4j-cassandra/src/test/java/org/apache/logging/log4j/cassandra/CassandraExtension.java
+++ 
b/log4j-cassandra/src/test/java/org/apache/logging/log4j/cassandra/CassandraExtension.java
@@ -14,11 +14,16 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.cassandra;
 
-import com.datastax.driver.core.Cluster;
-import com.datastax.driver.core.Session;
+import java.net.InetAddress;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.security.Permission;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.atomic.AtomicReference;
+
 import org.apache.cassandra.service.CassandraDaemon;
 import org.apache.logging.log4j.core.util.Cancellable;
 import org.apache.logging.log4j.core.util.Closer;
@@ -33,13 +38,8 @@ import 
org.junit.jupiter.api.extension.ParameterResolutionException;
 import org.junit.jupiter.api.extension.support.TypeBasedParameterResolver;
 import org.opentest4j.TestAbortedException;
 
-import java.net.InetAddress;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.security.Permission;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.ThreadFactory;
-import java.util.concurrent.atomic.AtomicReference;
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.Session;
 
 import static org.junit.jupiter.api.Assertions.fail;
 
diff --git 
a/log4j-core-test/src/main/java/org/apache/logging/log4j/core/test/CoreLoggerContexts.java
 
b/log4j-core-test/src/main/java/org/apache/logging/log4j/core/test/CoreLoggerContexts.java
index a2b9456848..a44fa9d652 100644
--- 
a/log4j-core-test/src/main/java/org/apache/logging/log4j/core/test/CoreLoggerContexts.java
+++ 
b/log4j-core-test/src/main/java/org/apache/logging/log4j/core/test/CoreLoggerContexts.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.test;
 
 import java.io.File;
diff --git 
a/log4j-core-test/src/test/java/org/apache/logging/log4j/core/appender/TlsSyslogAppenderTest.java
 
b/log4j-core-test/src/test/java/org/apache/logging/log4j/core/appender/TlsSyslogAppenderTest.java
index 6f3afbc7c7..756d21d9b2 100644
--- 
a/log4j-core-test/src/test/java/org/apache/logging/log4j/core/appender/TlsSyslogAppenderTest.java
+++ 
b/log4j-core-test/src/test/java/org/apache/logging/log4j/core/appender/TlsSyslogAppenderTest.java
@@ -24,14 +24,14 @@ import javax.net.ssl.SSLServerSocketFactory;
 
 import org.apache.logging.log4j.core.net.Facility;
 import org.apache.logging.log4j.core.net.Protocol;
-import org.apache.logging.log4j.core.test.net.mock.MockSyslogServerFactory;
 import org.apache.logging.log4j.core.net.ssl.KeyStoreConfiguration;
 import org.apache.logging.log4j.core.net.ssl.SslConfiguration;
 import org.apache.logging.log4j.core.net.ssl.StoreConfigurationException;
-import org.apache.logging.log4j.core.test.net.ssl.TestConstants;
-import org.apache.logging.log4j.core.test.net.ssl.TlsSyslogMessageFormat;
 import org.apache.logging.log4j.core.net.ssl.TlsSyslogTestUtil;
 import org.apache.logging.log4j.core.net.ssl.TrustStoreConfiguration;
+import org.apache.logging.log4j.core.test.net.mock.MockSyslogServerFactory;
+import org.apache.logging.log4j.core.test.net.ssl.TestConstants;
+import org.apache.logging.log4j.core.test.net.ssl.TlsSyslogMessageFormat;
 import org.apache.logging.log4j.util.EnglishEnums;
 import org.junit.Test;
 
diff --git 
a/log4j-core-test/src/test/java/org/apache/logging/log4j/core/async/perftest/ResponseTimeTest.java
 
b/log4j-core-test/src/test/java/org/apache/logging/log4j/core/async/perftest/ResponseTimeTest.java
index 2898f95ff6..16d5af1a6c 100644
--- 
a/log4j-core-test/src/test/java/org/apache/logging/log4j/core/async/perftest/ResponseTimeTest.java
+++ 
b/log4j-core-test/src/test/java/org/apache/logging/log4j/core/async/perftest/ResponseTimeTest.java
@@ -16,13 +16,6 @@
  */
 package org.apache.logging.log4j.core.async.perftest;
 
-import org.HdrHistogram.Histogram;
-import org.apache.logging.log4j.Level;
-import org.apache.logging.log4j.core.async.DefaultAsyncQueueFullPolicy;
-import org.apache.logging.log4j.core.async.EventRoute;
-import org.apache.logging.log4j.core.util.Constants;
-import org.apache.logging.log4j.core.util.Loader;
-
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.PrintStream;
@@ -32,6 +25,13 @@ import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicLong;
 
+import org.HdrHistogram.Histogram;
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.core.async.DefaultAsyncQueueFullPolicy;
+import org.apache.logging.log4j.core.async.EventRoute;
+import org.apache.logging.log4j.core.util.Constants;
+import org.apache.logging.log4j.core.util.Loader;
+
 import static org.apache.logging.log4j.util.Constants.isThreadLocalsEnabled;
 
 /**
diff --git 
a/log4j-core-test/src/test/java/org/apache/logging/log4j/core/net/ssl/SslConfigurationFactoryTest.java
 
b/log4j-core-test/src/test/java/org/apache/logging/log4j/core/net/ssl/SslConfigurationFactoryTest.java
index e6de0db6a2..27370e28be 100644
--- 
a/log4j-core-test/src/test/java/org/apache/logging/log4j/core/net/ssl/SslConfigurationFactoryTest.java
+++ 
b/log4j-core-test/src/test/java/org/apache/logging/log4j/core/net/ssl/SslConfigurationFactoryTest.java
@@ -16,15 +16,15 @@
  */
 package org.apache.logging.log4j.core.net.ssl;
 
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertNull;
-
 import java.util.Properties;
 
 import org.apache.logging.log4j.core.test.net.ssl.TestConstants;
 import org.apache.logging.log4j.util.PropertiesUtil;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
 public class SslConfigurationFactoryTest {
 
     private static void addKeystoreConfiguration(Properties props) {
diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/Filter.java 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/Filter.java
index bd059be78c..104263d3e5 100644
--- a/log4j-core/src/main/java/org/apache/logging/log4j/core/Filter.java
+++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/Filter.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core;
 
 import org.apache.logging.log4j.Level;
@@ -37,7 +36,7 @@ public interface Filter extends LifeCycle {
      * Empty array.
      */
     Filter[] EMPTY_ARRAY = {};
-    
+
     /**
      * Main {@linkplain 
org.apache.logging.log4j.plugins.Configurable#elementType() plugin element 
type} for
      * Filter plugins.
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/AsyncLoggerContextSelector.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/AsyncLoggerContextSelector.java
index ce3e7e4c51..80bc4ce46f 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/AsyncLoggerContextSelector.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/AsyncLoggerContextSelector.java
@@ -16,6 +16,8 @@
  */
 package org.apache.logging.log4j.core.async;
 
+import java.net.URI;
+
 import org.apache.logging.log4j.core.LoggerContext;
 import org.apache.logging.log4j.core.selector.ClassLoaderContextSelector;
 import org.apache.logging.log4j.core.util.Constants;
@@ -24,8 +26,6 @@ import org.apache.logging.log4j.plugins.Singleton;
 import org.apache.logging.log4j.plugins.di.Injector;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import java.net.URI;
-
 /**
  * {@code ContextSelector} that manages {@code AsyncLoggerContext} instances.
  * <p>
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/DisruptorUtil.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/DisruptorUtil.java
index 45e529efa1..6de190aa6d 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/DisruptorUtil.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/DisruptorUtil.java
@@ -14,19 +14,19 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.async;
 
-import com.lmax.disruptor.ExceptionHandler;
-import com.lmax.disruptor.WaitStrategy;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.core.util.Integers;
 import org.apache.logging.log4j.core.util.Loader;
 import org.apache.logging.log4j.status.StatusLogger;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Future;
+import com.lmax.disruptor.ExceptionHandler;
+import com.lmax.disruptor.WaitStrategy;
 
 import static org.apache.logging.log4j.util.Constants.isThreadLocalsEnabled;
 
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/RingBufferLogEvent.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/RingBufferLogEvent.java
index 93c389c9ef..4d58ae5309 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/RingBufferLogEvent.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/RingBufferLogEvent.java
@@ -16,7 +16,9 @@
  */
 package org.apache.logging.log4j.core.async;
 
-import com.lmax.disruptor.EventFactory;
+import java.io.IOException;
+import java.util.Arrays;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.ThreadContext.ContextStack;
@@ -41,8 +43,7 @@ import org.apache.logging.log4j.util.StringBuilders;
 import org.apache.logging.log4j.util.StringMap;
 import org.apache.logging.log4j.util.Strings;
 
-import java.io.IOException;
-import java.util.Arrays;
+import com.lmax.disruptor.EventFactory;
 
 import static org.apache.logging.log4j.util.Constants.isThreadLocalsEnabled;
 
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/ThreadNameCachingStrategy.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/ThreadNameCachingStrategy.java
index c686fbc6b5..c1aa2e67c8 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/async/ThreadNameCachingStrategy.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/async/ThreadNameCachingStrategy.java
@@ -1,86 +1,85 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache license, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the license for the specific language governing permissions and
- * limitations under the license.
- */
-
-package org.apache.logging.log4j.core.async;
-
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import org.apache.logging.log4j.status.StatusLogger;
-import org.apache.logging.log4j.util.Constants;
-import org.apache.logging.log4j.util.PropertiesUtil;
-
-/**
- * Strategy for deciding whether thread name should be cached or not.
- */
-public enum ThreadNameCachingStrategy { // LOG4J2-467
-    CACHED {
-        @Override
-        public String getThreadName() {
-            String result = THREADLOCAL_NAME.get();
-            if (result == null) {
-                result = Thread.currentThread().getName();
-                THREADLOCAL_NAME.set(result);
-            }
-            return result;
-        }
-    },
-    UNCACHED {
-        @Override
-        public String getThreadName() {
-            return Thread.currentThread().getName();
-        }
-    };
-
-    private static final StatusLogger LOGGER = StatusLogger.getLogger();
-    private static final ThreadLocal<String> THREADLOCAL_NAME = new 
ThreadLocal<>();
-    static final ThreadNameCachingStrategy DEFAULT_STRATEGY = 
isAllocatingThreadGetName() ? CACHED : UNCACHED;
-
-    abstract String getThreadName();
-
-    public static ThreadNameCachingStrategy create() {
-        final String name = 
PropertiesUtil.getProperties().getStringProperty("AsyncLogger.ThreadNameStrategy");
-        try {
-            final ThreadNameCachingStrategy result = name != null ? 
ThreadNameCachingStrategy.valueOf(name) : DEFAULT_STRATEGY;
-            LOGGER.debug("AsyncLogger.ThreadNameStrategy={} (user specified 
{}, default is {})",
-                         result.name(), name, DEFAULT_STRATEGY.name());
-            return result;
-        } catch (final Exception ex) {
-            LOGGER.debug("Using AsyncLogger.ThreadNameStrategy.{}: '{}' not 
valid: {}",
-                         DEFAULT_STRATEGY.name(), name, ex.toString());
-            return DEFAULT_STRATEGY;
-        }
-    }
-
-    static boolean isAllocatingThreadGetName() {
-        // LOG4J2-2052, LOG4J2-2635 JDK 8u102 ("1.8.0_102") removed the String 
allocation in Thread.getName()
-        if (Constants.JAVA_MAJOR_VERSION == 8) {
-            try {
-                final Pattern javaVersionPattern = 
Pattern.compile("(\\d+)\\.(\\d+)\\.(\\d+)_(\\d+)");
-                final Matcher m = 
javaVersionPattern.matcher(System.getProperty("java.version"));
-                if (m.matches()) {
-                    return Integer.parseInt(m.group(3)) == 0 && 
Integer.parseInt(m.group(4)) < 102;
-                }
-                return true;
-            } catch (final Exception e) {
-                return true;
-            }
-        } else {
-            return Constants.JAVA_MAJOR_VERSION < 8;
-        }
-    }
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache license, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
+ */
+package org.apache.logging.log4j.core.async;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.logging.log4j.status.StatusLogger;
+import org.apache.logging.log4j.util.Constants;
+import org.apache.logging.log4j.util.PropertiesUtil;
+
+/**
+ * Strategy for deciding whether thread name should be cached or not.
+ */
+public enum ThreadNameCachingStrategy { // LOG4J2-467
+    CACHED {
+        @Override
+        public String getThreadName() {
+            String result = THREADLOCAL_NAME.get();
+            if (result == null) {
+                result = Thread.currentThread().getName();
+                THREADLOCAL_NAME.set(result);
+            }
+            return result;
+        }
+    },
+    UNCACHED {
+        @Override
+        public String getThreadName() {
+            return Thread.currentThread().getName();
+        }
+    };
+
+    private static final StatusLogger LOGGER = StatusLogger.getLogger();
+    private static final ThreadLocal<String> THREADLOCAL_NAME = new 
ThreadLocal<>();
+    static final ThreadNameCachingStrategy DEFAULT_STRATEGY = 
isAllocatingThreadGetName() ? CACHED : UNCACHED;
+
+    abstract String getThreadName();
+
+    public static ThreadNameCachingStrategy create() {
+        final String name = 
PropertiesUtil.getProperties().getStringProperty("AsyncLogger.ThreadNameStrategy");
+        try {
+            final ThreadNameCachingStrategy result = name != null ? 
ThreadNameCachingStrategy.valueOf(name) : DEFAULT_STRATEGY;
+            LOGGER.debug("AsyncLogger.ThreadNameStrategy={} (user specified 
{}, default is {})",
+                         result.name(), name, DEFAULT_STRATEGY.name());
+            return result;
+        } catch (final Exception ex) {
+            LOGGER.debug("Using AsyncLogger.ThreadNameStrategy.{}: '{}' not 
valid: {}",
+                         DEFAULT_STRATEGY.name(), name, ex.toString());
+            return DEFAULT_STRATEGY;
+        }
+    }
+
+    static boolean isAllocatingThreadGetName() {
+        // LOG4J2-2052, LOG4J2-2635 JDK 8u102 ("1.8.0_102") removed the String 
allocation in Thread.getName()
+        if (Constants.JAVA_MAJOR_VERSION == 8) {
+            try {
+                final Pattern javaVersionPattern = 
Pattern.compile("(\\d+)\\.(\\d+)\\.(\\d+)_(\\d+)");
+                final Matcher m = 
javaVersionPattern.matcher(System.getProperty("java.version"));
+                if (m.matches()) {
+                    return Integer.parseInt(m.group(3)) == 0 && 
Integer.parseInt(m.group(4)) < 102;
+                }
+                return true;
+            } catch (final Exception e) {
+                return true;
+            }
+        } else {
+            return Constants.JAVA_MAJOR_VERSION < 8;
+        }
+    }
+}
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ConfigurationSource.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ConfigurationSource.java
index 66680f197c..cc8b2752c7 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ConfigurationSource.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ConfigurationSource.java
@@ -14,20 +14,8 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.config;
 
-import org.apache.logging.log4j.core.net.ssl.LaxHostnameVerifier;
-import org.apache.logging.log4j.core.net.ssl.SslConfiguration;
-import org.apache.logging.log4j.core.net.ssl.SslConfigurationFactory;
-import org.apache.logging.log4j.core.util.AuthorizationProvider;
-import org.apache.logging.log4j.core.util.FileUtils;
-import org.apache.logging.log4j.core.util.Loader;
-import org.apache.logging.log4j.core.util.Source;
-import org.apache.logging.log4j.util.LoaderUtil;
-import org.apache.logging.log4j.util.PropertiesUtil;
-
-import javax.net.ssl.HttpsURLConnection;
 import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.FileInputStream;
@@ -42,6 +30,17 @@ import java.net.URLConnection;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Objects;
+import javax.net.ssl.HttpsURLConnection;
+
+import org.apache.logging.log4j.core.net.ssl.LaxHostnameVerifier;
+import org.apache.logging.log4j.core.net.ssl.SslConfiguration;
+import org.apache.logging.log4j.core.net.ssl.SslConfigurationFactory;
+import org.apache.logging.log4j.core.util.AuthorizationProvider;
+import org.apache.logging.log4j.core.util.FileUtils;
+import org.apache.logging.log4j.core.util.Loader;
+import org.apache.logging.log4j.core.util.Source;
+import org.apache.logging.log4j.util.LoaderUtil;
+import org.apache.logging.log4j.util.PropertiesUtil;
 
 /**
  * Represents the source for the logging configuration.
@@ -178,15 +177,15 @@ public class ConfigurationSource {
     private boolean isFile() {
         return source == null ? false : source.getFile() != null;
     }
-    
+
     private boolean isURL() {
         return source == null ? false : source.getURI() != null;
     }
-    
+
     private boolean isLocation() {
         return source == null ? false : source.getLocation() != null;
     }
-    
+
     /**
      * Returns the configuration source URL, or {@code null} if this 
configuration source is based on a file or has
      * neither a file nor an URL.
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/HttpWatcher.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/HttpWatcher.java
index e5301ed0a0..7d29dd4f6f 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/HttpWatcher.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/HttpWatcher.java
@@ -16,6 +16,12 @@
  */
 package org.apache.logging.log4j.core.config;
 
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.List;
+
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.core.net.ssl.SslConfiguration;
 import org.apache.logging.log4j.core.net.ssl.SslConfigurationFactory;
@@ -31,12 +37,6 @@ import org.apache.logging.log4j.plugins.PluginAliases;
 import org.apache.logging.log4j.status.StatusLogger;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import java.io.IOException;
-import java.net.MalformedURLException;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.util.List;
-
 /**
  *
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ReliabilityStrategyFactory.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ReliabilityStrategyFactory.java
index 542cd759fb..019c6f2313 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ReliabilityStrategyFactory.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ReliabilityStrategyFactory.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.config;
 
 import org.apache.logging.log4j.core.util.Loader;
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/plugins/convert/CoreTypeConverters.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/plugins/convert/CoreTypeConverters.java
index 34cf35d007..7be995ca9f 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/config/plugins/convert/CoreTypeConverters.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/config/plugins/convert/CoreTypeConverters.java
@@ -14,17 +14,8 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.config.plugins.convert;
 
-import org.apache.logging.log4j.Level;
-import org.apache.logging.log4j.core.appender.rolling.action.Duration;
-import org.apache.logging.log4j.core.util.CronExpression;
-import org.apache.logging.log4j.plugins.Plugin;
-import org.apache.logging.log4j.plugins.convert.TypeConverter;
-import org.apache.logging.log4j.plugins.convert.TypeConverters;
-import org.apache.logging.log4j.util.LoaderUtil;
-
 import java.io.File;
 import java.math.BigDecimal;
 import java.math.BigInteger;
@@ -43,6 +34,14 @@ import java.util.Base64;
 import java.util.UUID;
 import java.util.regex.Pattern;
 
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.core.appender.rolling.action.Duration;
+import org.apache.logging.log4j.core.util.CronExpression;
+import org.apache.logging.log4j.plugins.Plugin;
+import org.apache.logging.log4j.plugins.convert.TypeConverter;
+import org.apache.logging.log4j.plugins.convert.TypeConverters;
+import org.apache.logging.log4j.util.LoaderUtil;
+
 /**
  * General {@link TypeConverter} implementations.
  *
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/CompositeFilter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/CompositeFilter.java
index 7b49827ba3..254c911553 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/CompositeFilter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/CompositeFilter.java
@@ -16,6 +16,12 @@
  */
 package org.apache.logging.log4j.core.filter;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.core.AbstractLifeCycle;
@@ -31,12 +37,6 @@ import org.apache.logging.log4j.plugins.PluginElement;
 import org.apache.logging.log4j.plugins.PluginFactory;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Iterator;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
 /**
  * Composes and invokes one or more filters.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/MutableThreadContextMapFilter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/MutableThreadContextMapFilter.java
index e2266f84d9..7d7bf2f0f6 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/MutableThreadContextMapFilter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/MutableThreadContextMapFilter.java
@@ -16,8 +16,16 @@
  */
 package org.apache.logging.log4j.core.filter;
 
-import com.fasterxml.jackson.databind.DeserializationFeature;
-import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.core.Filter;
@@ -44,15 +52,8 @@ import org.apache.logging.log4j.plugins.PluginFactory;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.InputStream;
-import java.net.URI;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ScheduledFuture;
-import java.util.concurrent.TimeUnit;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
 
 /**
  * Filter based on a value in the Thread Context Map (MDC).
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/StructuredDataFilter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/StructuredDataFilter.java
index 4f18b0d001..e978dbc65c 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/StructuredDataFilter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/StructuredDataFilter.java
@@ -16,6 +16,11 @@
  */
 package org.apache.logging.log4j.core.filter;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.core.Filter;
@@ -33,11 +38,6 @@ import 
org.apache.logging.log4j.util.IndexedReadOnlyStringMap;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 import org.apache.logging.log4j.util.StringBuilders;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
 /**
  * Filter based on data in a StructuredDataMessage.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/ThreadContextMapFilter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/ThreadContextMapFilter.java
index 28a74abee2..3791980695 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/ThreadContextMapFilter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/ThreadContextMapFilter.java
@@ -16,6 +16,13 @@
  */
 package org.apache.logging.log4j.core.filter;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Supplier;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.core.ContextDataInjector;
@@ -39,13 +46,6 @@ import org.apache.logging.log4j.util.PerformanceSensitive;
 import org.apache.logging.log4j.util.ReadOnlyStringMap;
 import org.apache.logging.log4j.util.StringMap;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.function.Supplier;
-
 /**
  * Filter based on a value in the Thread Context Map (MDC).
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/TimeFilter.java 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/TimeFilter.java
index ebc9f06c79..c321724abc 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/TimeFilter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/filter/TimeFilter.java
@@ -16,6 +16,15 @@
  */
 package org.apache.logging.log4j.core.filter;
 
+import java.time.Duration;
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalTime;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.function.Supplier;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.core.Filter;
@@ -31,15 +40,6 @@ import org.apache.logging.log4j.plugins.PluginAttribute;
 import org.apache.logging.log4j.plugins.PluginFactory;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.time.Duration;
-import java.time.Instant;
-import java.time.LocalDate;
-import java.time.LocalTime;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
-import java.time.format.DateTimeFormatter;
-import java.util.function.Supplier;
-
 /**
  * Filters events that fall within a specified time period in each day.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/DefaultCallback.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/DefaultCallback.java
index 410e74b24a..df5912ca12 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/DefaultCallback.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/DefaultCallback.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.impl;
 
 import org.apache.logging.log4j.core.util.Loader;
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/Log4jContextFactory.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/Log4jContextFactory.java
index 573cb12225..0ddf5047a3 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/Log4jContextFactory.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/Log4jContextFactory.java
@@ -16,6 +16,12 @@
  */
 package org.apache.logging.log4j.core.impl;
 
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
 import org.apache.logging.log4j.core.LifeCycle;
 import org.apache.logging.log4j.core.LoggerContext;
 import org.apache.logging.log4j.core.config.AbstractConfiguration;
@@ -36,12 +42,6 @@ import org.apache.logging.log4j.spi.LoggerContextFactory;
 import org.apache.logging.log4j.status.StatusLogger;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import java.net.URI;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-
 import static org.apache.logging.log4j.util.Constants.isWebApp;
 
 /**
@@ -245,7 +245,7 @@ public class Log4jContextFactory implements 
LoggerContextFactory, ShutdownCallba
             ctx.setExternalContext(externalContext);
         }
         if (name != null) {
-               ctx.setName(name);
+            ctx.setName(name);
         }
         if (ctx.getState() == LifeCycle.State.INITIALIZED) {
             if (configLocation != null || name != null) {
@@ -360,15 +360,15 @@ public class Log4jContextFactory implements 
LoggerContextFactory, ShutdownCallba
         return selector;
     }
 
-       /**
-        * Returns the ShutdownCallbackRegistry
-        *
-        * @return the ShutdownCallbackRegistry
-        * @since 2.4
-        */
-       public ShutdownCallbackRegistry getShutdownCallbackRegistry() {
-               return shutdownCallbackRegistry;
-       }
+    /**
+     * Returns the ShutdownCallbackRegistry
+     *
+     * @return the ShutdownCallbackRegistry
+     * @since 2.4
+     */
+    public ShutdownCallbackRegistry getShutdownCallbackRegistry() {
+        return shutdownCallbackRegistry;
+    }
 
     /**
      * Removes knowledge of a LoggerContext.
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/jmx/Server.java 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/jmx/Server.java
index f3add96827..0c75ea03ba 100644
--- a/log4j-core/src/main/java/org/apache/logging/log4j/core/jmx/Server.java
+++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/jmx/Server.java
@@ -16,6 +16,20 @@
  */
 package org.apache.logging.log4j.core.jmx;
 
+import java.lang.management.ManagementFactory;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import javax.management.InstanceAlreadyExistsException;
+import javax.management.InstanceNotFoundException;
+import javax.management.MBeanRegistrationException;
+import javax.management.MBeanServer;
+import javax.management.NotCompliantMBeanException;
+import javax.management.ObjectName;
+
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.core.Appender;
 import org.apache.logging.log4j.core.LoggerContext;
@@ -31,20 +45,6 @@ import org.apache.logging.log4j.status.StatusLogger;
 import org.apache.logging.log4j.util.Constants;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import javax.management.InstanceAlreadyExistsException;
-import javax.management.InstanceNotFoundException;
-import javax.management.MBeanRegistrationException;
-import javax.management.MBeanServer;
-import javax.management.NotCompliantMBeanException;
-import javax.management.ObjectName;
-import java.lang.management.ManagementFactory;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.Executor;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
 /**
  * Creates MBeans to instrument various classes in the log4j class hierarchy.
  * <p>
@@ -54,7 +54,7 @@ import java.util.concurrent.Executors;
 public final class Server {
 
     private static final String CONTEXT_NAME_ALL = "*";
-       /**
+    /**
      * The domain part, or prefix ({@value}) of the {@code ObjectName} of all 
MBeans that instrument Log4J2 components.
      */
     public static final String DOMAIN = "org.apache.logging.log4j2";
@@ -168,8 +168,8 @@ public final class Server {
                 if (ctx instanceof AsyncLoggerContext) {
                     final RingBufferAdmin rbmbean = ((AsyncLoggerContext) 
ctx).createRingBufferAdmin();
                     if (rbmbean.getBufferSize() > 0) {
-                       // don't register if Disruptor not started 
(DefaultConfiguration: config not found)
-                       register(mbs, rbmbean, rbmbean.getObjectName());
+                        // don't register if Disruptor not started 
(DefaultConfiguration: config not found)
+                        register(mbs, rbmbean, rbmbean.getObjectName());
                     }
                 }
 
@@ -205,18 +205,18 @@ public final class Server {
      *
      * @param mbs the MBean server to unregister from.
      */
-       public static void unregisterMBeans(final MBeanServer mbs) {
-               if (mbs != null) {
-                       unregisterStatusLogger(CONTEXT_NAME_ALL, mbs);
-                       unregisterContextSelector(CONTEXT_NAME_ALL, mbs);
-                       unregisterContexts(mbs);
-                       unregisterLoggerConfigs(CONTEXT_NAME_ALL, mbs);
-                       unregisterAsyncLoggerRingBufferAdmins(CONTEXT_NAME_ALL, 
mbs);
-                       
unregisterAsyncLoggerConfigRingBufferAdmins(CONTEXT_NAME_ALL, mbs);
-                       unregisterAppenders(CONTEXT_NAME_ALL, mbs);
-                       unregisterAsyncAppenders(CONTEXT_NAME_ALL, mbs);
-               }
-       }
+    public static void unregisterMBeans(final MBeanServer mbs) {
+        if (mbs != null) {
+            unregisterStatusLogger(CONTEXT_NAME_ALL, mbs);
+            unregisterContextSelector(CONTEXT_NAME_ALL, mbs);
+            unregisterContexts(mbs);
+            unregisterLoggerConfigs(CONTEXT_NAME_ALL, mbs);
+            unregisterAsyncLoggerRingBufferAdmins(CONTEXT_NAME_ALL, mbs);
+            unregisterAsyncLoggerConfigRingBufferAdmins(CONTEXT_NAME_ALL, mbs);
+            unregisterAppenders(CONTEXT_NAME_ALL, mbs);
+            unregisterAsyncAppenders(CONTEXT_NAME_ALL, mbs);
+        }
+    }
 
     /**
      * Returns the {@code ContextSelector} of the current {@code 
Log4jContextFactory}.
@@ -333,15 +333,15 @@ public final class Server {
             final ObjectName pattern = new ObjectName(search);
             final Set<ObjectName> found = mbs.queryNames(pattern, null);
             if (found == null || found.isEmpty()) {
-               LOGGER.trace("Unregistering but no MBeans found matching '{}'", 
search);
+                LOGGER.trace("Unregistering but no MBeans found matching 
'{}'", search);
             } else {
-               LOGGER.trace("Unregistering {} MBeans: {}", found.size(), 
found);
+                LOGGER.trace("Unregistering {} MBeans: {}", found.size(), 
found);
+            }
+            if (found != null) {
+                for (final ObjectName objectName : found) {
+                    mbs.unregisterMBean(objectName);
+                }
             }
-                       if (found != null) {
-                               for (final ObjectName objectName : found) {
-                                       mbs.unregisterMBean(objectName);
-                               }
-                       }
         } catch (final InstanceNotFoundException ex) {
             LOGGER.debug("Could not unregister MBeans for " + search + ". 
Ignoring " + ex);
         } catch (final Exception ex) {
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/layout/SyslogLayout.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/layout/SyslogLayout.java
index f6cf978cc3..fb481233b6 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/layout/SyslogLayout.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/layout/SyslogLayout.java
@@ -16,6 +16,16 @@
  */
 package org.apache.logging.log4j.core.layout;
 
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 import org.apache.logging.log4j.core.Layout;
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.net.Facility;
@@ -27,16 +37,6 @@ import 
org.apache.logging.log4j.plugins.PluginBuilderAttribute;
 import org.apache.logging.log4j.plugins.PluginFactory;
 import org.apache.logging.log4j.util.Chars;
 
-import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.Locale;
-import java.util.Map;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
 /**
  * Formats a log event as a BSD Log record.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/net/MulticastDnsAdvertiser.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/net/MulticastDnsAdvertiser.java
index 3b145233d0..440dd3c34d 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/net/MulticastDnsAdvertiser.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/net/MulticastDnsAdvertiser.java
@@ -16,6 +16,12 @@
  */
 package org.apache.logging.log4j.core.net;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Map;
+
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.core.util.Integers;
 import org.apache.logging.log4j.plugins.Configurable;
@@ -23,12 +29,6 @@ import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.status.StatusLogger;
 import org.apache.logging.log4j.util.LoaderUtil;
 
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.HashMap;
-import java.util.Hashtable;
-import java.util.Map;
-
 /**
  * Advertise an entity via ZeroConf/MulticastDNS and the JmDNS library.
  *
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/osgi/BundleContextSelector.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/osgi/BundleContextSelector.java
index 165f3106a4..718c0bf6fc 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/osgi/BundleContextSelector.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/osgi/BundleContextSelector.java
@@ -16,6 +16,12 @@
  */
 package org.apache.logging.log4j.core.osgi;
 
+import java.lang.ref.WeakReference;
+import java.net.URI;
+import java.util.Objects;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
+
 import org.apache.logging.log4j.core.LoggerContext;
 import org.apache.logging.log4j.core.impl.ContextAnchor;
 import org.apache.logging.log4j.core.selector.ClassLoaderContextSelector;
@@ -27,12 +33,6 @@ import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleReference;
 import org.osgi.framework.FrameworkUtil;
 
-import java.lang.ref.WeakReference;
-import java.net.URI;
-import java.util.Objects;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicReference;
-
 /**
  * ContextSelector for OSGi bundles. This ContextSelector works rather 
similarly to the
  * {@link ClassLoaderContextSelector}, but instead of each ClassLoader having 
its own LoggerContext (like in a
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/AbstractStyleNameConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/AbstractStyleNameConverter.java
index d9911a6389..350daf8b08 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/AbstractStyleNameConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/AbstractStyleNameConverter.java
@@ -16,6 +16,11 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.util.Arrays;
+import java.util.List;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.config.Configuration;
 import org.apache.logging.log4j.core.layout.PatternLayout;
@@ -23,11 +28,6 @@ import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.util.Arrays;
-import java.util.List;
-
 /**
  * Style pattern converter. Adds ANSI color styling to the result of the 
enclosed pattern.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/DatePatternConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/DatePatternConverter.java
index cb52abf37c..6612452133 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/DatePatternConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/DatePatternConverter.java
@@ -16,6 +16,13 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.Arrays;
+import java.util.Date;
+import java.util.Locale;
+import java.util.Objects;
+import java.util.TimeZone;
+import java.util.concurrent.atomic.AtomicReference;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.time.Instant;
 import org.apache.logging.log4j.core.time.MutableInstant;
@@ -26,13 +33,6 @@ import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.Arrays;
-import java.util.Date;
-import java.util.Locale;
-import java.util.Objects;
-import java.util.TimeZone;
-import java.util.concurrent.atomic.AtomicReference;
-
 import static org.apache.logging.log4j.util.Constants.isThreadLocalsEnabled;
 
 /**
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EncodingPatternConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EncodingPatternConverter.java
index f140e5a911..0723e22d3e 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EncodingPatternConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EncodingPatternConverter.java
@@ -16,6 +16,8 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.List;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.config.Configuration;
 import org.apache.logging.log4j.core.layout.PatternLayout;
@@ -25,8 +27,6 @@ import org.apache.logging.log4j.util.EnglishEnums;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 import org.apache.logging.log4j.util.StringBuilders;
 
-import java.util.List;
-
 /**
  * Converter that encodes the output from a pattern using a specified format. 
Supported formats include HTML
  * (default) and JSON.
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsIgnoreCaseReplacementConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsIgnoreCaseReplacementConverter.java
index 404c5625e2..5e36512a84 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsIgnoreCaseReplacementConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsIgnoreCaseReplacementConverter.java
@@ -16,6 +16,8 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.List;
+
 import org.apache.logging.log4j.core.config.Configuration;
 import org.apache.logging.log4j.core.layout.PatternLayout;
 import org.apache.logging.log4j.plugins.Namespace;
@@ -23,8 +25,6 @@ import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 import org.apache.logging.log4j.util.StringBuilders;
 
-import java.util.List;
-
 /**
  * Equals ignore case pattern converter.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsReplacementConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsReplacementConverter.java
index 7603af9d43..2cb8225423 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsReplacementConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/EqualsReplacementConverter.java
@@ -16,6 +16,8 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.List;
+
 import org.apache.logging.log4j.core.config.Configuration;
 import org.apache.logging.log4j.core.layout.PatternLayout;
 import org.apache.logging.log4j.plugins.Namespace;
@@ -23,8 +25,6 @@ import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 import org.apache.logging.log4j.util.StringBuilders;
 
-import java.util.List;
-
 /**
  * Equals pattern converter.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/FormattingInfo.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/FormattingInfo.java
index fa2019f369..73d9c08f81 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/FormattingInfo.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/FormattingInfo.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.pattern;
 
 import org.apache.logging.log4j.util.PerformanceSensitive;
@@ -131,8 +130,8 @@ public final class FormattingInfo {
      * @return true if left truncated.
      */
     public boolean isLeftTruncate() {
-               return leftTruncate;
-       }
+        return leftTruncate;
+    }
 
     /**
      * Determine if zero-padded.
@@ -173,11 +172,11 @@ public final class FormattingInfo {
         final int rawLength = buffer.length() - fieldStart;
 
         if (rawLength > maxLength) {
-                       if (leftTruncate) {
-                               buffer.delete(fieldStart, buffer.length() - 
maxLength);
-                       } else {
-                               buffer.delete(fieldStart + maxLength, 
fieldStart + buffer.length());
-                       }
+            if (leftTruncate) {
+                buffer.delete(fieldStart, buffer.length() - maxLength);
+            } else {
+                buffer.delete(fieldStart + maxLength, fieldStart + 
buffer.length());
+            }
         } else if (rawLength < minLength) {
             if (leftAlign) {
                 final int fieldEnd = buffer.length();
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/IntegerPatternConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/IntegerPatternConverter.java
index 48631d279c..1684706da9 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/IntegerPatternConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/IntegerPatternConverter.java
@@ -16,12 +16,12 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.Date;
+
 import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.Date;
-
 /**
  * Formats an integer.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/LevelPatternConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/LevelPatternConverter.java
index 7b9dc8ba57..2a1046c6ac 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/LevelPatternConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/LevelPatternConverter.java
@@ -16,6 +16,10 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.util.Patterns;
@@ -23,10 +27,6 @@ import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.HashMap;
-import java.util.Locale;
-import java.util.Map;
-
 /**
  * Returns the event's level in a StringBuilder.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/MaxLengthConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/MaxLengthConverter.java
index c97775c237..3d65c70078 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/MaxLengthConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/MaxLengthConverter.java
@@ -14,9 +14,10 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.List;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.appender.AbstractAppender;
 import org.apache.logging.log4j.core.config.Configuration;
@@ -25,8 +26,6 @@ import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.List;
-
 /**
  * Max length pattern converter. Limit contained text to a maximum length.
  * On invalid length the default value 100 is used (and an error message is 
logged).
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/SequenceNumberPatternConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/SequenceNumberPatternConverter.java
index 2db77bd5fa..9b50bc2f52 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/SequenceNumberPatternConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/SequenceNumberPatternConverter.java
@@ -16,13 +16,13 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.concurrent.atomic.AtomicLong;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.concurrent.atomic.AtomicLong;
-
 /**
  * Formats the event sequence number.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/StyleConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/StyleConverter.java
index 1b11e7d42d..e102f7306a 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/StyleConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/StyleConverter.java
@@ -16,6 +16,9 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.Arrays;
+import java.util.List;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.config.Configuration;
 import org.apache.logging.log4j.core.layout.PatternLayout;
@@ -24,9 +27,6 @@ import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.Arrays;
-import java.util.List;
-
 /**
  * Style pattern converter. Adds ANSI color styling to the result of the 
enclosed pattern.
  *
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/VariablesNotEmptyReplacementConverter.java
 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/VariablesNotEmptyReplacementConverter.java
index 5016bb39c1..c513ff5cd0 100644
--- 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/VariablesNotEmptyReplacementConverter.java
+++ 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/pattern/VariablesNotEmptyReplacementConverter.java
@@ -16,6 +16,8 @@
  */
 package org.apache.logging.log4j.core.pattern;
 
+import java.util.List;
+
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.config.Configuration;
 import org.apache.logging.log4j.core.layout.PatternLayout;
@@ -23,8 +25,6 @@ import org.apache.logging.log4j.plugins.Namespace;
 import org.apache.logging.log4j.plugins.Plugin;
 import org.apache.logging.log4j.util.PerformanceSensitive;
 
-import java.util.List;
-
 /**
  * VariablesNotEmpty pattern converter.
  */
diff --git 
a/log4j-core/src/main/java/org/apache/logging/log4j/core/util/UuidUtil.java 
b/log4j-core/src/main/java/org/apache/logging/log4j/core/util/UuidUtil.java
index cf83095bc8..62564f39da 100644
--- a/log4j-core/src/main/java/org/apache/logging/log4j/core/util/UuidUtil.java
+++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/util/UuidUtil.java
@@ -148,4 +148,3 @@ public final class UuidUtil {
         return new UUID(most, LEAST);
     }
 }
-
diff --git 
a/log4j-gctests/src/test/java/org/apache/logging/log4j/gctests/GcFreeLoggingTestUtil.java
 
b/log4j-gctests/src/test/java/org/apache/logging/log4j/gctests/GcFreeLoggingTestUtil.java
index b98120292f..97e37b5c04 100644
--- 
a/log4j-gctests/src/test/java/org/apache/logging/log4j/gctests/GcFreeLoggingTestUtil.java
+++ 
b/log4j-gctests/src/test/java/org/apache/logging/log4j/gctests/GcFreeLoggingTestUtil.java
@@ -16,16 +16,6 @@
  */
 package org.apache.logging.log4j.gctests;
 
-import com.google.monitoring.runtime.instrumentation.AllocationRecorder;
-import com.google.monitoring.runtime.instrumentation.Sampler;
-import org.apache.logging.log4j.Level;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Marker;
-import org.apache.logging.log4j.MarkerManager;
-import org.apache.logging.log4j.ThreadContext;
-import org.apache.logging.log4j.core.util.Constants;
-import org.apache.logging.log4j.message.StringMapMessage;
-
 import java.io.File;
 import java.net.URL;
 import java.nio.charset.Charset;
@@ -36,6 +26,17 @@ import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.regex.Pattern;
 
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Marker;
+import org.apache.logging.log4j.MarkerManager;
+import org.apache.logging.log4j.ThreadContext;
+import org.apache.logging.log4j.core.util.Constants;
+import org.apache.logging.log4j.message.StringMapMessage;
+
+import com.google.monitoring.runtime.instrumentation.AllocationRecorder;
+import com.google.monitoring.runtime.instrumentation.Sampler;
+
 import static java.lang.System.getProperty;
 import static org.apache.logging.log4j.util.Constants.isThreadLocalsEnabled;
 import static org.apache.logging.log4j.util.Constants.isWebApp;
diff --git 
a/log4j-jpa/src/main/java/org/apache/logging/log4j/jpa/converter/ThrowableAttributeConverter.java
 
b/log4j-jpa/src/main/java/org/apache/logging/log4j/jpa/converter/ThrowableAttributeConverter.java
index 0a3b876836..43e639fd4c 100644
--- 
a/log4j-jpa/src/main/java/org/apache/logging/log4j/jpa/converter/ThrowableAttributeConverter.java
+++ 
b/log4j-jpa/src/main/java/org/apache/logging/log4j/jpa/converter/ThrowableAttributeConverter.java
@@ -22,7 +22,6 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.ListIterator;
-
 import javax.persistence.AttributeConverter;
 import javax.persistence.Converter;
 
diff --git 
a/log4j-jul/src/main/java/org/apache/logging/log4j/jul/LevelTranslator.java 
b/log4j-jul/src/main/java/org/apache/logging/log4j/jul/LevelTranslator.java
index 328e1e56ca..bd02d7583e 100644
--- a/log4j-jul/src/main/java/org/apache/logging/log4j/jul/LevelTranslator.java
+++ b/log4j-jul/src/main/java/org/apache/logging/log4j/jul/LevelTranslator.java
@@ -14,7 +14,6 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.jul;
 
 import org.apache.logging.log4j.Level;
diff --git 
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/RecyclerFactories.java
 
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/RecyclerFactories.java
index 382c40ae26..2b4d236758 100644
--- 
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/RecyclerFactories.java
+++ 
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/RecyclerFactories.java
@@ -16,9 +16,6 @@
  */
 package org.apache.logging.log4j.layout.template.json.util;
 
-import org.apache.logging.log4j.util.LoaderUtil;
-import org.jctools.queues.MpmcArrayQueue;
-
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
 import java.util.Arrays;
@@ -28,6 +25,9 @@ import java.util.Queue;
 import java.util.concurrent.ArrayBlockingQueue;
 import java.util.function.Supplier;
 
+import org.apache.logging.log4j.util.LoaderUtil;
+import org.jctools.queues.MpmcArrayQueue;
+
 import static org.apache.logging.log4j.util.Constants.isThreadLocalsEnabled;
 
 public final class RecyclerFactories {
diff --git 
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/Uris.java
 
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/Uris.java
index c78335039b..eeaa56d1f8 100644
--- 
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/Uris.java
+++ 
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/util/Uris.java
@@ -16,10 +16,6 @@
  */
 package org.apache.logging.log4j.layout.template.json.util;
 
-import org.apache.logging.log4j.Logger;
-import org.apache.logging.log4j.status.StatusLogger;
-import org.apache.logging.log4j.util.LoaderUtil;
-
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
@@ -34,6 +30,10 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.status.StatusLogger;
+import org.apache.logging.log4j.util.LoaderUtil;
+
 public final class Uris {
 
     private Uris() {}
diff --git 
a/log4j-perf/src/main/java/org/apache/logging/log4j/perf/jmh/StringBuilderEscapeBenchmark.java
 
b/log4j-perf/src/main/java/org/apache/logging/log4j/perf/jmh/StringBuilderEscapeBenchmark.java
index 865f925021..f49e180013 100644
--- 
a/log4j-perf/src/main/java/org/apache/logging/log4j/perf/jmh/StringBuilderEscapeBenchmark.java
+++ 
b/log4j-perf/src/main/java/org/apache/logging/log4j/perf/jmh/StringBuilderEscapeBenchmark.java
@@ -14,9 +14,10 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.perf.jmh;
 
+import java.util.concurrent.TimeUnit;
+
 import org.apache.logging.log4j.util.StringBuilders;
 import org.openjdk.jmh.annotations.Benchmark;
 import org.openjdk.jmh.annotations.BenchmarkMode;
@@ -25,8 +26,6 @@ import org.openjdk.jmh.annotations.OutputTimeUnit;
 import org.openjdk.jmh.annotations.Scope;
 import org.openjdk.jmh.annotations.State;
 
-import java.util.concurrent.TimeUnit;
-
 /**
  * This benchmark tests encoding implementations.
  */
diff --git 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/condition/OnPropertyCondition.java
 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/condition/OnPropertyCondition.java
index 9c145b071b..bb1e093689 100644
--- 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/condition/OnPropertyCondition.java
+++ 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/condition/OnPropertyCondition.java
@@ -14,9 +14,10 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.plugins.condition;
 
+import java.lang.reflect.AnnotatedElement;
+
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.plugins.Singleton;
 import org.apache.logging.log4j.plugins.di.Key;
@@ -24,8 +25,6 @@ import org.apache.logging.log4j.plugins.util.AnnotationUtil;
 import org.apache.logging.log4j.status.StatusLogger;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
-import java.lang.reflect.AnnotatedElement;
-
 @Singleton
 public class OnPropertyCondition implements Condition {
     private static final Logger LOGGER = StatusLogger.getLogger();
diff --git 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/util/ResolverUtil.java
 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/util/ResolverUtil.java
index 802cce355e..4fb20d6912 100644
--- 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/util/ResolverUtil.java
+++ 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/util/ResolverUtil.java
@@ -16,12 +16,6 @@
  */
 package org.apache.logging.log4j.plugins.util;
 
-import org.apache.logging.log4j.Logger;
-import org.apache.logging.log4j.util.LoaderUtil;
-import org.apache.logging.log4j.status.StatusLogger;
-import org.osgi.framework.FrameworkUtil;
-import org.osgi.framework.wiring.BundleWiring;
-
 import java.io.*;
 import java.net.JarURLConnection;
 import java.net.URI;
@@ -34,6 +28,12 @@ import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 import java.util.jar.JarInputStream;
 
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.status.StatusLogger;
+import org.apache.logging.log4j.util.LoaderUtil;
+import org.osgi.framework.FrameworkUtil;
+import org.osgi.framework.wiring.BundleWiring;
+
 /**
  * <p>
  * ResolverUtil is used to locate classes that are available in the/a class 
path and meet arbitrary conditions. The two
diff --git 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/visit/PluginBuilderAttributeVisitor.java
 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/visit/PluginBuilderAttributeVisitor.java
index 9e32d6a8a4..706adb56dd 100644
--- 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/visit/PluginBuilderAttributeVisitor.java
+++ 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/visit/PluginBuilderAttributeVisitor.java
@@ -14,9 +14,15 @@
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
-
 package org.apache.logging.log4j.plugins.visit;
 
+import java.lang.reflect.AnnotatedElement;
+import java.lang.reflect.Field;
+import java.lang.reflect.Parameter;
+import java.lang.reflect.Type;
+import java.util.Collection;
+import java.util.function.Function;
+
 import org.apache.logging.log4j.plugins.Inject;
 import org.apache.logging.log4j.plugins.Named;
 import org.apache.logging.log4j.plugins.Node;
@@ -26,13 +32,6 @@ import org.apache.logging.log4j.plugins.di.Injector;
 import org.apache.logging.log4j.plugins.di.Keys;
 import org.apache.logging.log4j.util.StringBuilders;
 
-import java.lang.reflect.AnnotatedElement;
-import java.lang.reflect.Field;
-import java.lang.reflect.Parameter;
-import java.lang.reflect.Type;
-import java.util.Collection;
-import java.util.function.Function;
-
 public class PluginBuilderAttributeVisitor implements NodeVisitor {
     private final Function<String, String> stringSubstitutionStrategy;
     private final Injector injector;
diff --git 
a/log4j-script/src/main/java/org/apache/logging/log4j/script/ScriptManagerImpl.java
 
b/log4j-script/src/main/java/org/apache/logging/log4j/script/ScriptManagerImpl.java
index 53ef67548a..99c357fa61 100644
--- 
a/log4j-script/src/main/java/org/apache/logging/log4j/script/ScriptManagerImpl.java
+++ 
b/log4j-script/src/main/java/org/apache/logging/log4j/script/ScriptManagerImpl.java
@@ -28,7 +28,6 @@ import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 import java.util.stream.Collectors;
-
 import javax.script.Bindings;
 import javax.script.Compilable;
 import javax.script.CompiledScript;
diff --git 
a/log4j-slf4j-impl/src/main/java/org/apache/logging/slf4j/Log4jLoggerFactory.java
 
b/log4j-slf4j-impl/src/main/java/org/apache/logging/slf4j/Log4jLoggerFactory.java
index f1733013b9..cf9b002aa9 100644
--- 
a/log4j-slf4j-impl/src/main/java/org/apache/logging/slf4j/Log4jLoggerFactory.java
+++ 
b/log4j-slf4j-impl/src/main/java/org/apache/logging/slf4j/Log4jLoggerFactory.java
@@ -16,6 +16,8 @@
  */
 package org.apache.logging.slf4j;
 
+import java.util.function.Predicate;
+
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.LoggingException;
 import org.apache.logging.log4j.spi.AbstractLoggerAdapter;
@@ -25,8 +27,6 @@ import org.apache.logging.log4j.util.StackLocatorUtil;
 import org.slf4j.ILoggerFactory;
 import org.slf4j.Logger;
 
-import java.util.function.Predicate;
-
 /**
  * Log4j implementation of SLF4J ILoggerFactory interface.
  */
diff --git 
a/log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLoggerContextFactory.java
 
b/log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLoggerContextFactory.java
index 7de053a7bd..5b267238a4 100644
--- 
a/log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLoggerContextFactory.java
+++ 
b/log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLoggerContextFactory.java
@@ -1,69 +1,69 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache license, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the license for the specific language governing permissions and
- * limitations under the license.
- */
-package org.apache.logging.slf4j;
-
-import java.net.URI;
-
-import org.apache.logging.log4j.spi.LoggerContext;
-import org.apache.logging.log4j.spi.LoggerContextFactory;
-import org.apache.logging.log4j.status.StatusLogger;
-import org.apache.logging.log4j.util.LoaderUtil;
-
-/**
- *
- */
-public class SLF4JLoggerContextFactory implements LoggerContextFactory {
-    private static final StatusLogger LOGGER = StatusLogger.getLogger();
-    private static final LoggerContext context = new SLF4JLoggerContext();
-
-    public SLF4JLoggerContextFactory() {
-        // LOG4J2-230, LOG4J2-204 (improve error reporting when misconfigured)
-        boolean misconfigured = false;
-        try {
-            LoaderUtil.loadClass("org.slf4j.helpers.Log4jLoggerFactory");
-            misconfigured = true;
-        } catch (final ClassNotFoundException classNotFoundIsGood) {
-            LOGGER.debug("org.slf4j.helpers.Log4jLoggerFactory is not on 
classpath. Good!");
-        }
-        if (misconfigured) {
-            throw new IllegalStateException("slf4j-impl jar is mutually 
exclusive with log4j-to-slf4j jar "
-                    + "(the first routes calls from SLF4J to Log4j, the second 
from Log4j to SLF4J)");
-        }
-    }
-
-    @Override
-    public LoggerContext getContext(final String fqcn, final ClassLoader 
loader, final Object externalContext,
-                                    final boolean currentContext) {
-        return context;
-    }
-
-    @Override
-    public LoggerContext getContext(final String fqcn, final ClassLoader 
loader, final Object externalContext,
-                                    final boolean currentContext, final URI 
configLocation, final String name) {
-        return context;
-    }
-
-    @Override
-    public void removeContext(final LoggerContext ignored) {
-    }
-
-    @Override
-    public boolean isClassLoaderDependent() {
-        // context is always used
-        return false;
-    }
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache license, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
+ */
+package org.apache.logging.slf4j;
+
+import java.net.URI;
+
+import org.apache.logging.log4j.spi.LoggerContext;
+import org.apache.logging.log4j.spi.LoggerContextFactory;
+import org.apache.logging.log4j.status.StatusLogger;
+import org.apache.logging.log4j.util.LoaderUtil;
+
+/**
+ *
+ */
+public class SLF4JLoggerContextFactory implements LoggerContextFactory {
+    private static final StatusLogger LOGGER = StatusLogger.getLogger();
+    private static final LoggerContext context = new SLF4JLoggerContext();
+
+    public SLF4JLoggerContextFactory() {
+        // LOG4J2-230, LOG4J2-204 (improve error reporting when misconfigured)
+        boolean misconfigured = false;
+        try {
+            LoaderUtil.loadClass("org.slf4j.helpers.Log4jLoggerFactory");
+            misconfigured = true;
+        } catch (final ClassNotFoundException classNotFoundIsGood) {
+            LOGGER.debug("org.slf4j.helpers.Log4jLoggerFactory is not on 
classpath. Good!");
+        }
+        if (misconfigured) {
+            throw new IllegalStateException("slf4j-impl jar is mutually 
exclusive with log4j-to-slf4j jar "
+                    + "(the first routes calls from SLF4J to Log4j, the second 
from Log4j to SLF4J)");
+        }
+    }
+
+    @Override
+    public LoggerContext getContext(final String fqcn, final ClassLoader 
loader, final Object externalContext,
+                                    final boolean currentContext) {
+        return context;
+    }
+
+    @Override
+    public LoggerContext getContext(final String fqcn, final ClassLoader 
loader, final Object externalContext,
+                                    final boolean currentContext, final URI 
configLocation, final String name) {
+        return context;
+    }
+
+    @Override
+    public void removeContext(final LoggerContext ignored) {
+    }
+
+    @Override
+    public boolean isClassLoaderDependent() {
+        // context is always used
+        return false;
+    }
+}

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