Hi there,
In case of Windows OS and the cp65001 CodePage setting, there is UnsupportedCharsetException: cp65001 happening and the console display really not good many of the unprintable characters showing ... 2017-08-29 11:34:41,204 CM Configuration Updater (Update: pid=org.ops4j.pax.logging) ERROR Unable to inject fields into builder class for plugin type class org.apache.logging.log4j.core.appender.ConsoleAppender, element Console. java.nio.ch arset.UnsupportedCharsetException: cp65001 at java.nio.charset.Charset.forName(Charset.java:531) at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:146) at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:134) at org.apache.logging.log4j.core.appender.ConsoleAppender$Target.getCharset(ConsoleAppender.java:85) at org.apache.logging.log4j.core.appender.ConsoleAppender$Target$1.getDefaultCharset(ConsoleAppender.java:71) at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:218) at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:185) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:261) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.doUpdate(PaxLoggingServiceImpl.java:213) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.updated(PaxLoggingServiceImpl.java:158) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl$1ManagedPaxLoggingService.updated(PaxLoggingServi ceImpl.java:426) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85) at org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1776) at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:141) at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:109) at java.lang.Thread.run(Thread.java:745) 2017-08-29 11:34:41,214 CM Configuration Updater (Update: pid=org.ops4j.pax.logging) ERROR Unable to invoke factory meth od in class class org.apache.logging.log4j.core.appender.ConsoleAppender for element Console. java.lang.IllegalStateExce ption: 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:224) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:130) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:261) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.doUpdate(PaxLoggingServiceImpl.java:213) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.updated(PaxLoggingServiceImpl.java:158) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl$1ManagedPaxLoggingService.updated(PaxLoggingServi ceImpl.java:426) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85) at org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1776) at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:141) at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:109) at java.lang.Thread.run(Thread.java:745) 2017-08-29 11:34:41,224 CM Configuration Updater (Update: pid=org.ops4j.pax.logging) ERROR Null object returned for Cons ole in Appenders. 2017-08-29 11:34:41,224 CM Configuration Updater (Update: pid=org.ops4j.pax.logging) ERROR Unable to locate appender "Co nsole" for logger config "root" 2017-08-29 11:34:42,084 CM Configuration Updater (ManagedService Update: pid=[org.ops4j.pax.logging]) ERROR Unable to in ject fields into builder class for plugin type class org.apache.logging.log4j.core.appender.ConsoleAppender, element Con sole. java.nio.charset.UnsupportedCharsetException: cp65001 at java.nio.charset.Charset.forName(Charset.java:531) at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:146) at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:134) at org.apache.logging.log4j.core.appender.ConsoleAppender$Target.getCharset(ConsoleAppender.java:85) at org.apache.logging.log4j.core.appender.ConsoleAppender$Target$1.getDefaultCharset(ConsoleAppender.java:71) at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:218) at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:185) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:261) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.doUpdate(PaxLoggingServiceImpl.java:213) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.updated(PaxLoggingServiceImpl.java:158) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl$1ManagedPaxLoggingService.updated(PaxLoggingServi ceImpl.java:426) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85) at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.provide(ConfigurationManager.java:1463) at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.run(ConfigurationManager.java:1419) at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:141) at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:109) at java.lang.Thread.run(Thread.java:745) 2017-08-29 11:34:42,094 CM Configuration Updater (ManagedService Update: pid=[org.ops4j.pax.logging]) ERROR Unable to in voke factory method in class 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 at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:224) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:130) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884 ) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:261) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.doUpdate(PaxLoggingServiceImpl.java:213) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.updated(PaxLoggingServiceImpl.java:158) at org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl$1ManagedPaxLoggingService.updated(PaxLoggingServi ceImpl.java:426) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152) at org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85) at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.provide(ConfigurationManager.java:1463) at org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.run(ConfigurationManager.java:1419) at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:141) at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:109) at java.lang.Thread.run(Thread.java:745) 2017-08-29 11:34:42,094 CM Configuration Updater (ManagedService Update: pid=[org.ops4j.pax.logging]) ERROR Null object returned for Console in Appenders. 2017-08-29 11:34:42,094 CM Configuration Updater (ManagedService Update: pid=[org.ops4j.pax.logging]) ERROR Unable to lo cate appender "Console" for logger config "root" __ __ ____ / //_/____ __________ _/ __/ / ,< / __ `/ ___/ __ `/ /_ / /| |/ /_/ / / / /_/ / __/ /_/ |_|\__,_/_/ \__,_/_/ Apache Karaf (4.1.2) Hit '<tab>' for a list of available commands and '[cmd] --help' for help on a specific command. Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown Karaf. karaf@root()> list START LEVEL 100 , List Threshold: 50 ID �� State �� Lvl �� Version �� Name �������������������������������������������������������������������������������������������������������������������� �������������������������������������������������������������������������������������������������������������� 28 �� Active �� 80 �� 4.1.2 �� Apache Karaf :: OSGi Services :: Event Event After "chcp 437", the UnsupportedCharsetException gone but the console display still looks not good. Seems it's only happening on Windows OS (Non English version) with 65001 CodePage. but karaf 4.1.1 works well on the same machine/ENV. Is something problem related to the JLine upgrade? any thoughts? Thanks Regards.