Apache Karaf starting up. Press Enter to open the shell now... 5% [===> ] 10% [=======> ] 15% [==========> ] 20% [==============> ] 25% [==================> ] 30% [=====================> ] 35% [=========================> ] 40% [============================> ] 45% [================================> ] 50% [====================================> ] 55% [=======================================> ] 60% [===========================================> ] 65% [==============================================> ] 70% [==================================================> ] 75% [======================================================> ] 80% [=========================================================> ] 85% [=============================================================> ] 90% [================================================================> ] 95% [====================================================================> ] 100% [========================================================================] Karaf started in 0s. Bundle stats: 20 active, 20 total org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Unable to locate plugin type for PatternLay org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Unable to locate plugin for PatternLay org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Could not create plugin of type class org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender for element RollingRandomAccessFile: java.lang.NullPointerException: Cannot invoke "org.apache.logging.log4j.core.config.plugins.util.PluginType.getElementName()" because "childType" is null org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Unable to invoke factory method in class org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender for element RollingRandomAccessFile: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Null object returned for RollingRandomAccessFile in Appenders. org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Unable to locate appender "PaxOsgi" for logger config "root" org.ops4j.pax.logging.pax-logging-api [log4j2] ERROR : Unable to locate appender "AuditRollingFile" for logger config "org.apache.karaf.jaas.modules.audit"