Log4j2 plugins do not work in remote-jar

[turing85]

Citrus Version : 3.2.1, 3.3.0

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Expected behavior:

When we use log4j2-plugins, e.g the JsonTemplateFormat, the plugin should work.

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Actual behavior:

On application startup, we see the following messages in the console:

Picked up JAVA_TOOL_OPTIONS: -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
Listening for transport dt_socket at address: 5005
2022-09-26 17:14:14,520 main ERROR Unable to locate plugin type for JsonTemplateLayout
2022-09-26 17:14:14,555 main ERROR Unable to locate plugin for JsonTemplateLayout
2022-09-26 17:14:14,562 main ERROR Could not create plugin of type class org.apache.logging.log4j.core.appender.ConsoleAppender for element Console: java.lang.NullPointerException: Cannot invoke "org.apache.logging.log4j.core.config.plugins.util.PluginType.getElementName()" because "childType" is null java.lang.NullPointerException: Cannot invoke "org.apache.logging.log4j.core.config.plugins.util.PluginType.getElementName()" because "childType" is null
	at org.apache.logging.log4j.core.config.plugins.visitors.PluginElementVisitor.findNamedNode(PluginElementVisitor.java:104)
	at org.apache.logging.log4j.core.config.plugins.visitors.PluginElementVisitor.visit(PluginElementVisitor.java:88)
	at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.injectFields(PluginBuilder.java:189)
	at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:123)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1122)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1047)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1039)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:651)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:249)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:295)
	at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:621)
	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:694)
	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:711)
	at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
	at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
	at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
	at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
	at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
	at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:55)
	at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
	at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:33)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:388)
	at com.consol.citrus.remote.CitrusRemoteServer.<clinit>(CitrusRemoteServer.java:37)

2022-09-26 17:14:14,564 main ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.ConsoleAppender for element Console: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.ConsoleAppender java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.ConsoleAppender
	at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:238)
	at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:136)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1122)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1047)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1039)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:651)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:249)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:295)
	at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:621)
	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:694)
	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:711)
	at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
	at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
	at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
	at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
	at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
	at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:55)
	at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
	at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:33)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:388)
	at com.consol.citrus.remote.CitrusRemoteServer.<clinit>(CitrusRemoteServer.java:37)

2022-09-26 17:14:14,582 main ERROR Null object returned for Console in Appenders.
2022-09-26 17:14:14,582 main ERROR Unable to locate appender "STDOUT" for logger config "root"

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Reproducer:

• checkout this git-repository, switch to branch [jog4j2-plugin-not-working]

• build service and tests:

  ./mvnw -Pbuild-test-jar package
  

• deploy the service:

  cd local-deployment && docker compose up -d service && cd ..
  

• trigger the tests through failsafe:

  ./mvnw -pl citrus verify
  

• observe that the tests succeed

• deploy the citrus tests:

  cd local-deployment && docker compose up -d citrus-tests && cd ..
  

• observe the error in the container logs through

  docker logs citrus-tests-citrus-tests-1
  

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Logs of the successful, local run:

citrus-reports-from-surefire-successful.tar.gz

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Additional information:

There is this maven-shade transformer, describing a similar (or possibly the same?) issue.