[ 
https://issues.apache.org/jira/browse/LOG4J2-2690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16928912#comment-16928912
 ] 

Tobias Diez commented on LOG4J2-2690:
-------------------------------------

This error is fixed but the next one follows. It might be a combination of the 
fact that the configuration syntax changed (not sure about that, couldn't find 
a documentation for version 3.0) and some further missing `require` statements.

(I don't have a problem testing different versions but may I suggest that you 
add an integration test verifying that the plugin system works for a 
modularized Java 11 application)


{noformat}
2019-09-12 23:54:01,309 main ERROR Cannot locate converter for class 
java.lang.Boolean
2019-09-12 23:54:01,313 main ERROR Cannot locate converter for class 
java.lang.Byte
2019-09-12 23:54:01,314 main ERROR Cannot locate converter for class 
java.lang.Character
2019-09-12 23:54:01,314 main ERROR Cannot locate converter for class 
java.lang.Double
2019-09-12 23:54:01,316 main ERROR Cannot locate converter for class 
java.lang.Float
2019-09-12 23:54:01,317 main ERROR Cannot locate converter for class 
java.lang.Integer
2019-09-12 23:54:01,318 main ERROR Cannot locate converter for class 
java.lang.Long
2019-09-12 23:54:01,318 main ERROR Cannot locate converter for class 
java.lang.Short
2019-09-12 23:54:01,319 main ERROR Could not create plugin of type class 
org.apache.logging.log4j.core.layout.PatternLayout for element PatternLayout: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:173)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginBuilderAttributeBuilder.build(PluginBuilderAttributeBuilder.java:44)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$injectFields$0(PluginBuilder.java:202)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.injectFields(PluginBuilder.java:193)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:129)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,321 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.layout.PatternLayout for element PatternLayout: 
java.lang.IllegalStateException: No factory method found for class 
org.apache.logging.log4j.core.layout.PatternLayout 
java.lang.IllegalStateException: No factory method found for class 
org.apache.logging.log4j.core.layout.PatternLayout
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:255)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:142)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,337 main ERROR Could not create plugin of type class 
org.apache.logging.log4j.core.appender.ConsoleAppender for element Console: 
java.lang.IllegalStateException: java.lang.IllegalAccessException: class 
org.apache.logging.log4j.util.ReflectionUtil (in module 
org.apache.logging.log4j) cannot access class 
org.apache.logging.log4j.plugins.validation.validators.RequiredValidator (in 
module org.apache.logging.log4j.plugins) because module 
org.apache.logging.log4j.plugins does not export 
org.apache.logging.log4j.plugins.validation.validators to module 
org.apache.logging.log4j java.lang.IllegalStateException: 
java.lang.IllegalAccessException: class 
org.apache.logging.log4j.util.ReflectionUtil (in module 
org.apache.logging.log4j) cannot access class 
org.apache.logging.log4j.plugins.validation.validators.RequiredValidator (in 
module org.apache.logging.log4j.plugins) because module 
org.apache.logging.log4j.plugins does not export 
org.apache.logging.log4j.plugins.validation.validators to module 
org.apache.logging.log4j
        at 
[email protected]/org.apache.logging.log4j.util.ReflectionUtil.instantiate(ReflectionUtil.java:194)
        at 
[email protected]/org.apache.logging.log4j.plugins.validation.ConstraintValidators.getValidator(ConstraintValidators.java:66)
        at 
[email protected]/org.apache.logging.log4j.plugins.validation.ConstraintValidators.findValidators(ConstraintValidators.java:50)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.injectFields(PluginBuilder.java:209)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:129)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)
Caused by: java.lang.IllegalAccessException: class 
org.apache.logging.log4j.util.ReflectionUtil (in module 
org.apache.logging.log4j) cannot access class 
org.apache.logging.log4j.plugins.validation.validators.RequiredValidator (in 
module org.apache.logging.log4j.plugins) because module 
org.apache.logging.log4j.plugins does not export 
org.apache.logging.log4j.plugins.validation.validators to module 
org.apache.logging.log4j
        at 
java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
        at 
java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591)
        at 
java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
        at 
[email protected]/org.apache.logging.log4j.util.ReflectionUtil.instantiate(ReflectionUtil.java:188)
        ... 25 more

2019-09-12 23:54:01,337 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 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:255)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:142)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,337 main ERROR Null object returned for Console in 
Appenders.
2019-09-12 23:54:01,352 main ERROR Appenders contains invalid attributes 
"GuiAppender", "OurApplicationInsightsAppender"
2019-09-12 23:54:01,352 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.AppenderRef for element AppenderRef: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:171)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,352 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.LoggerConfig for element Logger: 
java.util.UnknownFormatConversionException: Conversion = 'boolean' 
java.util.UnknownFormatConversionException: Conversion = 'boolean'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:173)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,352 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.AppenderRef for element AppenderRef: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:171)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,368 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.AppenderRef for element AppenderRef: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:171)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,368 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.LoggerConfig for element Logger: 
java.util.UnknownFormatConversionException: Conversion = 'boolean' 
java.util.UnknownFormatConversionException: Conversion = 'boolean'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:173)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,383 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.AppenderRef for element AppenderRef: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:171)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,383 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.AppenderRef for element AppenderRef: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:171)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,399 main ERROR Unable to invoke factory method in class 
org.apache.logging.log4j.core.config.LoggerConfig$RootLogger for element Root: 
java.util.UnknownFormatConversionException: Conversion = 'class 
java.lang.String' java.util.UnknownFormatConversionException: Conversion = 
'class java.lang.String'
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverterRegistry.findCompatibleConverter(TypeConverterRegistry.java:103)
        at 
[email protected]/org.apache.logging.log4j.plugins.convert.TypeConverters.convert(TypeConverters.java:389)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.AbstractPluginInjectionBuilder.convert(AbstractPluginInjectionBuilder.java:171)
        at 
[email protected]/org.apache.logging.log4j.plugins.inject.PluginAttributeBuilder.build(PluginAttributeBuilder.java:42)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.lambda$generateParameters$1(PluginBuilder.java:283)
        at java.base/java.util.Optional.flatMap(Optional.java:294)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.generateParameters(PluginBuilder.java:274)
        at 
[email protected]/org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:143)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:996)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:936)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:928)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:546)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:243)
        at 
[email protected]/org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:290)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:575)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:647)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:664)
        at 
[email protected]/org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
        at 
[email protected]/org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
        at 
[email protected]/org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:51)
        at 
[email protected]/org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
        at 
[email protected]/org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:353)
        at org.slf4j/org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:378)
        at org.jabref/org.jabref.JabRefMain.<clinit>(JabRefMain.java:38)
        at org.jabref/org.jabref.JabRefLauncher.main(JabRefLauncher.java:8)

2019-09-12 23:54:01,399 main ERROR Null object returned for Logger in Loggers.
2019-09-12 23:54:01,399 main ERROR Null object returned for Logger in Loggers.
2019-09-12 23:54:01,399 main ERROR Null object returned for Root in Loggers.
2019-09-12 23:54:01,399 main WARN No Root logger was configured, creating 
default ERROR-level Root logger with Console appender
{noformat}


> Custom appenders no longer found with Java 11
> ---------------------------------------------
>
>                 Key: LOG4J2-2690
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2690
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 2.12.1
>         Environment: Java 11.2
> {noformat}
> compile group: 'org.slf4j', name: 'slf4j-api', version: '1.8.0-beta4'
> compile 'org.apache.logging.log4j:log4j-slf4j18-impl:2.12.1'
> compile 'org.apache.logging.log4j:log4j-jcl:2.12.1'
> compile 'org.apache.logging.log4j:log4j-api:2.12.1'
> compile 'org.apache.logging.log4j:log4j-core:2.12.1'{noformat}
>            Reporter: Tobias Diez
>            Priority: Major
>
> After upgrading to Java 11, the custom appenders are no longer found. The 
> following errors are shown when running the app:
> {noformat}
> 2019-09-10 21:44:54,195 main ERROR Error processing element GuiAppender 
> ([Appenders: null]): CLASS_NOT_FOUND
> 2019-09-10 21:44:54,240 main ERROR Appenders contains an invalid element or 
> attribute "OurApplicationInsightsAppender"
> 2019-09-10 21:44:54,261 main ERROR Unable to locate appender 
> "applicationInsightsAppender" for logger config "root"
> 2019-09-10 21:44:54,262 main ERROR Unable to locate appender "GuiLogger" for 
> logger config "org.jabref"
> 2019-09-10 21:44:54,262 main ERROR Unable to locate appender "GuiLogger" for 
> logger config "org.apache.pdfbox"{noformat}
> The log4j config file can be found here:
> https://github.com/JabRef/jabref/blob/master/src/main/resources/log4j2.xml
> and the appender here:
> https://github.com/JabRef/jabref/blob/master/src/main/java/org/jabref/gui/logging/GuiAppender.java
> (They were working with Java 8, so it shouldn't be a configuration problem.)



--
This message was sent by Atlassian Jira
(v8.3.2#803003)

Reply via email to