[LOG4J2-1576] Better automated backwards compatibility checking

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7
• Fix Version/s: 2.11.2
• Assignee: Ralph Goers
• Reporter: Remko Popma
• Created: 13/Sep/16 02:28
• Updated: 26/Dec/18 18:09
• Resolved: 26/Dec/18 18:09

Description

I have trouble running Clirr on a machine that only has Java 8 (ran into the "Invalid byte tag in constant pool" problem) so I started to look at alternatives. These two seem promising:

• javacmp
• Revapi

Revapi Configuration

More docs are here. Very quick:

${root}/pom.xml

<plugin>
  <groupId>org.revapi</groupId>
  <artifactId>revapi-maven-plugin</artifactId>
  <version>0.5.1</version>
  <dependencies>
    <dependency>
      <groupId>org.revapi</groupId>
      <artifactId>revapi-java</artifactId>
      <version>0.10.1</version>
    </dependency>
  </dependencies>
  <configuration>
  </configuration>
  <executions>
    <execution>
      <id>api-check</id>
      <goals><goal>check</goal></goals>
    </execution>
  </executions>
</plugin>

${root}/log4j-api/pom.xml and ${root}/log4j-core/pom.xml

<plugin>
  <groupId>org.revapi</groupId>
  <artifactId>revapi-maven-plugin</artifactId>
  <version>0.5.1</version>
  <configuration>
    <oldArtifacts>
      <artifact>${project.groupId}:${project.artifactId}:2.6.2</artifact>
    </oldArtifacts>
    <newArtifacts>
      <artifact>${project.groupId}:${project.artifactId}:${project.version}</artifact>
    </newArtifacts>
  </configuration>
  <executions>
    <execution>
      <id>api-check</id>
      <goals><goal>check</goal></goals>
    </execution>
  </executions>
</plugin>

${root}/log4j-bom/pom.xml

<plugin>
<groupId>org.revapi</groupId>
<artifactId>revapi-maven-plugin</artifactId>
<version>0.5.1</version>
<dependencies>
  <dependency>
    <groupId>org.revapi</groupId>
    <artifactId>revapi-java</artifactId>
    <version>0.10.1</version>
  </dependency>
</dependencies>
</plugin>

Revapi Maven Plugin

Docs are here. After running mvn revapi:check, it finds a lot. There is a mechanism to suppress findings in a fine-grained way.

[ERROR] java.class.removed: class org.apache.logging.log4j.core.async.DaemonThreadFactory: Class was removed.
[ERROR] java.field.constantValueChanged: field org.apache.logging.log4j.core.layout.PatternLayout.TTCC_CONVERSION_PATTERN: Constant field changed value from '%r [%t] %p %c %x - %m%n' to '%r [%t] %p %c %notEmpty{%x }- %m%n'.
[ERROR] java.field.removed: field org.apache.logging.log4j.core.appender.rolling.DefaultRolloverStrategy.LOGGER: Field removed from class.
[ERROR] java.field.removed: field org.apache.logging.log4j.core.util.Constants.UTF_8: Field removed from class.
[ERROR] java.generics.formalTypeParameterAdded: class org.apache.logging.log4j.core.appender.ConsoleAppender.Builder: A new formal type parameter added to element: 'B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B>>'.
[ERROR] java.generics.formalTypeParameterAdded: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender::newBuilder(): A new formal type parameter added to element: 'B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B>>'.
[ERROR] java.method.addedToInterface: method boolean org.apache.logging.log4j.core.LifeCycle::stop(long, java.util.concurrent.TimeUnit): Method was added to an interface.
[ERROR] java.method.addedToInterface: method java.lang.String org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder<T extends org.apache.logging.log4j.core.config.Configuration>::toXmlConfiguration(): Method was added to an interface.
[ERROR] java.method.addedToInterface: method org.apache.logging.log4j.core.LoggerContext org.apache.logging.log4j.core.config.Configuration::getLoggerContext(): Method was added to an interface.
[ERROR] java.method.addedToInterface: method org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder<T> org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder<T extends org.apache.logging.log4j.core.config.Configuration>::setDestination(java.lang.String): Method was added to an interface.
[ERROR] java.method.addedToInterface: method org.apache.logging.log4j.spi.ContextData org.apache.logging.log4j.core.LogEvent::getContextData(): Method was added to an interface.
[ERROR] java.method.addedToInterface: method void org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder<T extends org.apache.logging.log4j.core.config.Configuration>::setLoggerContext(org.apache.logging.log4j.core.LoggerContext): Method was added to an interface.
[ERROR] java.method.addedToInterface: method void org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder<T extends org.apache.logging.log4j.core.config.Configuration>::writeXmlConfiguration(java.io.OutputStream) throws java.io.IOException: Method was added to an interface.
[ERROR] java.method.exception.checkedAdded: method java.io.OutputStream org.apache.logging.log4j.core.appender.OutputStreamManager::getOutputStream(): Method newly throws checked exceptions: [java.io.IOException].
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.appender.FileManager org.apache.logging.log4j.core.appender.FileManager::getFileManager(java.lang.String, boolean, boolean, boolean, java.lang.String, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>, int, boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.appender.RandomAccessFileManager org.apache.logging.log4j.core.appender.RandomAccessFileManager::getFileManager(java.lang.String, boolean, boolean, int, java.lang.String, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.appender.mom.kafka.KafkaAppender org.apache.logging.log4j.core.appender.mom.kafka.KafkaAppender::createAppender(org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>, org.apache.logging.log4j.core.Filter, java.lang.String, boolean, java.lang.String, org.apache.logging.log4j.core.config.Property[]): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.appender.rolling.RollingFileManager org.apache.logging.log4j.core.appender.rolling.RollingFileManager::getFileManager(java.lang.String, java.lang.String, boolean, boolean, org.apache.logging.log4j.core.appender.rolling.TriggeringPolicy, org.apache.logging.log4j.core.appender.rolling.RolloverStrategy, java.lang.String, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>, int, boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager::getRollingRandomAccessFileManager(java.lang.String, java.lang.String, boolean, boolean, int, org.apache.logging.log4j.core.appender.rolling.TriggeringPolicy, org.apache.logging.log4j.core.appender.rolling.RolloverStrategy, java.lang.String, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.appender.routing.PurgePolicy org.apache.logging.log4j.core.appender.routing.IdlePurgePolicy::createPurgePolicy(java.lang.String, java.lang.String, org.apache.logging.log4j.core.config.Configuration): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.config.ConfigurationFactory::getConfiguration(java.lang.String, java.net.URI): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.config.ConfigurationFactory::getConfiguration(java.lang.String, java.net.URI, java.lang.ClassLoader): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.config.ConfigurationFactory::getConfiguration(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.config.json.JsonConfigurationFactory::getConfiguration(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.config.xml.XmlConfigurationFactory::getConfiguration(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.config.yaml.YamlConfigurationFactory::getConfiguration(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.Configuration org.apache.logging.log4j.core.net.server.AbstractSocketServer.ServerConfigurationFactory::getConfiguration(java.lang.String, java.net.URI): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.config.properties.PropertiesConfiguration org.apache.logging.log4j.core.config.properties.PropertiesConfigurationFactory::getConfiguration(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.layout.AbstractJacksonLayout org.apache.logging.log4j.core.layout.YamlLayout::createLayout(org.apache.logging.log4j.core.config.Configuration, boolean, boolean, java.lang.String, java.lang.String, java.nio.charset.Charset): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.layout.JsonLayout org.apache.logging.log4j.core.layout.JsonLayout::createLayout(org.apache.logging.log4j.core.config.Configuration, boolean, boolean, boolean, boolean, boolean, boolean, java.lang.String, java.lang.String, java.nio.charset.Charset): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.layout.XmlLayout org.apache.logging.log4j.core.layout.XmlLayout::createLayout(boolean, boolean, boolean, boolean, java.nio.charset.Charset): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.net.AbstractSocketManager org.apache.logging.log4j.core.appender.SocketAppender::createSocketManager(java.lang.String, org.apache.logging.log4j.core.net.Protocol, java.lang.String, int, int, org.apache.logging.log4j.core.net.ssl.SslConfiguration, int, boolean, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.net.DatagramSocketManager org.apache.logging.log4j.core.net.DatagramSocketManager::getSocketManager(java.lang.String, int, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.net.SslSocketManager org.apache.logging.log4j.core.net.SslSocketManager::getSocketManager(org.apache.logging.log4j.core.net.ssl.SslConfiguration, java.lang.String, int, int, int, boolean, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method org.apache.logging.log4j.core.net.TcpSocketManager org.apache.logging.log4j.core.net.TcpSocketManager::getSocketManager(java.lang.String, int, int, int, boolean, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.LoggerContext::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.AbstractManager::<init>(java.lang.String): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.AbstractManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender<M extends org.apache.logging.log4j.core.appender.OutputStreamManager>::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.AbstractWriterAppender<M extends org.apache.logging.log4j.core.appender.WriterManager>::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.AsyncAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.FileAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.MemoryMappedFileAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.OutputStreamManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.RandomAccessFileAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.RandomAccessFileManager::<init>(java.io.RandomAccessFile, java.lang.String, java.io.OutputStream, int, java.lang.String, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>, boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.RollingFileAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.SocketAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.WriterManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseAppender<T extends org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager>::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.JmsAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.JmsManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.jeromq.JeroMqAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.jeromq.JeroMqManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.kafka.KafkaAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.kafka.KafkaManager::<init>(java.lang.String, java.lang.String, org.apache.logging.log4j.core.config.Property[]): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.mom.kafka.KafkaManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager::<init>(java.io.RandomAccessFile, java.lang.String, java.lang.String, java.io.OutputStream, boolean, boolean, int, long, long, org.apache.logging.log4j.core.appender.rolling.TriggeringPolicy, org.apache.logging.log4j.core.appender.rolling.RolloverStrategy, java.lang.String, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>, boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.routing.IdlePurgePolicy::<init>(long, org.apache.logging.log4j.core.config.ConfigurationScheduler): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.routing.IdlePurgePolicy::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.appender.routing.RoutingAppender::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.async.AsyncLoggerConfig::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.async.AsyncLoggerConfigDisruptor::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.async.AsyncLoggerContext::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.async.RingBufferLogEventTranslator::setBasicValues(org.apache.logging.log4j.core.async.AsyncLogger, java.lang.String, org.apache.logging.log4j.Marker, java.lang.String, org.apache.logging.log4j.Level, org.apache.logging.log4j.message.Message, java.lang.Throwable, java.util.Map<java.lang.String, java.lang.String>, org.apache.logging.log4j.ThreadContext.ContextStack, java.lang.StackTraceElement, long, long): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.AbstractConfiguration::<init>(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.AbstractConfiguration::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.ConfigurationScheduler::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration::<init>(org.apache.logging.log4j.core.config.ConfigurationSource, org.apache.logging.log4j.core.config.builder.api.Component): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.json.JsonConfiguration::<init>(org.apache.logging.log4j.core.config.ConfigurationSource): The number ofparameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.properties.PropertiesConfiguration::<init>(org.apache.logging.log4j.core.config.ConfigurationSource, org.apache.logging.log4j.core.config.builder.api.Component): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.xml.XmlConfiguration::<init>(org.apache.logging.log4j.core.config.ConfigurationSource): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.config.yaml.YamlConfiguration::<init>(org.apache.logging.log4j.core.config.ConfigurationSource): The number ofparameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.filter.AbstractFilterable::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.filter.CompositeFilter::stop(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.impl.ThrowableFormatOptions::<init>(int, java.lang.String, java.util.List<java.lang.String>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.jackson.Log4jJsonObjectMapper::<init>(boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.jackson.Log4jYamlObjectMapper::<init>(boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.layout.JsonLayout::<init>(org.apache.logging.log4j.core.config.Configuration, boolean, boolean, boolean, boolean, boolean, boolean, java.lang.String, java.lang.String, java.nio.charset.Charset): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.layout.XmlLayout::<init>(boolean, boolean, boolean, boolean, java.nio.charset.Charset): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.layout.YamlLayout::<init>(org.apache.logging.log4j.core.config.Configuration, boolean, boolean, boolean, boolean, boolean, java.lang.String, java.lang.String, java.nio.charset.Charset): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.net.AbstractSocketManager::<init>(java.lang.String, java.io.OutputStream, java.net.InetAddress, java.lang.String, int, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>, boolean): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.net.DatagramSocketManager::<init>(java.lang.String, java.io.OutputStream, java.net.InetAddress, java.lang.String, int, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.net.JndiManager::releaseSub(): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.net.SslSocketManager::<init>(java.lang.String, java.io.OutputStream, java.net.Socket, org.apache.logging.log4j.core.net.ssl.SslConfiguration, java.net.InetAddress, java.lang.String, int, int, int, boolean, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.net.TcpSocketManager::<init>(java.lang.String, java.io.OutputStream, java.net.Socket, java.net.InetAddress, java.lang.String, int, int, int, boolean, org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): The number of parameters of the method have changed.
[ERROR] java.method.numberOfParametersChanged: method void org.apache.logging.log4j.core.util.WatchManager::stop(): The number of parameters of the method have changed.
[ERROR] java.method.parameterTypeChanged: method parameter void org.apache.logging.log4j.core.async.RingBufferLogEvent::setValues(org.apache.logging.log4j.core.async.AsyncLogger, java.lang.String, org.apache.logging.log4j.Marker, java.lang.String, org.apache.logging.log4j.Level, org.apache.logging.log4j.message.Message, java.lang.Throwable, ===java.util.Map<java.lang.String, java.lang.String>===,org.apache.logging.log4j.ThreadContext.ContextStack, long, java.lang.String, int, java.lang.StackTraceElement, long, long): The type of the parameter changed from 'java.util.Map<java.lang.String, java.lang.String>' to 'org.apache.logging.log4j.spi.MutableContextData'.
[ERROR] java.method.parameterTypeChanged: method parameter void org.apache.logging.log4j.core.util.Closer::closeSilently(===java.io.Closeable===): The type of the parameter changed from 'java.io.Closeable' to 'java.sql.Statement'.
[ERROR] java.method.parameterTypeChanged: method parameter void org.apache.logging.log4j.core.util.Closer::closeSilently(===java.sql.Statement===): The type of the parameter changed from 'java.sql.Statement' to 'java.io.Closeable'.
[ERROR] java.method.removed: method <T> T org.apache.logging.log4j.core.util.Assert::requireNonNull(T, java.lang.String): Method was removed.
[ERROR] java.method.removed: method java.lang.Class<?> org.apache.logging.log4j.core.util.Loader::loadClass(java.lang.String) throws java.lang.ClassNotFoundException: Method was removed.
[ERROR] java.method.removed: method java.util.List<java.lang.String> org.apache.logging.log4j.core.impl.ThrowableFormatOptions::getPackages(): Method was removed.
[ERROR] java.method.removed: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setFilter(org.apache.logging.log4j.core.Filter): Method was removed.
[ERROR] java.method.removed: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setIgnoreExceptions(boolean): Methodwas removed.
[ERROR] java.method.removed: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setLayout(org.apache.logging.log4j.core.Layout<? extends java.io.Serializable>): Method was removed.
[ERROR] java.method.removed: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setName(java.lang.String): Method was removed.
[ERROR] java.method.removed: method void org.apache.logging.log4j.core.async.RingBufferLogEvent::mergePropertiesIntoContextMap(java.util.Map<org.apache.logging.log4j.core.config.Property, java.lang.Boolean>, org.apache.logging.log4j.core.lookup.StrSubstitutor): Method was removed.
[ERROR] java.method.removed: method void org.apache.logging.log4j.core.impl.MutableLogEvent::setContextMap(java.util.Map<java.lang.String, java.lang.String>): Method was removed.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.LoggerContext::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.AbstractManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender<M extends org.apache.logging.log4j.core.appender.OutputStreamManager>::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.AbstractWriterAppender<M extends org.apache.logging.log4j.core.appender.WriterManager>::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.AsyncAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.FileAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.MemoryMappedFileAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.OutputStreamManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.RandomAccessFileAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.RollingFileAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.SocketAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.WriterManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseAppender<T extends org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager>::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager::commitAndClose(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager::shutdown(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager::shutdownInternal() throws java.lang.Exception: The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.jdbc.JdbcDatabaseManager::commitAndClose(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.jdbc.JdbcDatabaseManager::shutdownInternal(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.jpa.JpaDatabaseManager::commitAndClose(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.db.jpa.JpaDatabaseManager::shutdownInternal(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.mom.JmsAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.mom.JmsManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.mom.jeromq.JeroMqAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.mom.jeromq.JeroMqManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.mom.kafka.KafkaAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.mom.kafka.KafkaManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.routing.IdlePurgePolicy::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.appender.routing.RoutingAppender::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.async.AsyncLoggerConfig::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.async.AsyncLoggerConfigDisruptor::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.async.AsyncLoggerContext::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.config.AbstractConfiguration::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.config.ConfigurationScheduler::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.filter.AbstractFilterable::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.filter.CompositeFilter::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.net.JndiManager::releaseSub(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.util.Closer::closeSilently(java.sql.Statement): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.util.JndiCloser::closeSilently(javax.naming.Context): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeChanged: method void org.apache.logging.log4j.core.util.WatchManager::stop(): The return type changed from 'void' to  'boolean'.
[ERROR] java.method.returnTypeTypeParametersChanged: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setDirect(boolean): The return type changed from 'org.apache.logging.log4j.core.appender.ConsoleAppender.Builder' to 'B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B>'.
[ERROR] java.method.returnTypeTypeParametersChanged: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setFollow(boolean): The return type changed from 'org.apache.logging.log4j.core.appender.ConsoleAppender.Builder' to 'B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B>'.
[ERROR] java.method.returnTypeTypeParametersChanged: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender.Builder::setTarget(org.apache.logging.log4j.core.appender.ConsoleAppender.Target): The return type changed from 'org.apache.logging.log4j.core.appender.ConsoleAppender.Builder' to 'B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B>'.
[ERROR] java.method.returnTypeTypeParametersChanged: method org.apache.logging.log4j.core.appender.ConsoleAppender.Builder org.apache.logging.log4j.core.appender.ConsoleAppender::newBuilder(): The return type changed from 'org.apache.logging.log4j.core.appender.ConsoleAppender.Builder' to 'B extends org.apache.logging.log4j.core.appender.ConsoleAppender.Builder<B>'.
[ERROR] java.method.visibilityReduced: method void org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender<M extends org.apache.logging.log4j.core.appender.OutputStreamManager>::stop(): visibility reduced
[ERROR] java.method.visibilityReduced: method void org.apache.logging.log4j.core.filter.AbstractFilterable::stop(): visibility reduced
[ERROR] java.method.visibilityReduced: method void org.apache.logging.log4j.core.util.NullOutputStream::<init>(): visibility reduced

Issue Links

• is related to: LOG4J2-1591 New method on LifeCycle interface breaks binary compatibility
• relates to: LOG4J2-1596 Additional params on public methods break binary compatibility