[KARAF-1973] NullPointerException when performing log:clear then log:tail

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.12, 2.3.2, 2.4.0, 3.0.0

Environment

Windows Server 2008 r2, Ubuntu

• Assignee: Freeman Yue Fang
• Reporter: Alan Foster
• Created: 24/Oct/12 22:16
• Updated: 21/May/13 07:45
• Resolved: 21/May/13 07:45

Description

This occurs within FuseESB, but it was mentioned that this may be a karaf issue

Here is the sequence of events which take place :

FuseESB:karaf@root> log:clear
FuseESB:karaf@root> log:tail
Error executing command: java.lang.NullPointerException
FuseESB:karaf@root> log:tail
2012-10-19 22:22:34,260 | INFO  | l Console Thread | Console                          | 18 - org.apache.karaf.shell.console - 2.2.5.fuse-70-097 | Exception caught while executing command
java.lang.NullPointerException
	at org.apache.karaf.shell.log.DisplayLog.getColor(DisplayLog.java:172)[42:org.apache.karaf.shell.log:2.2.5.fuse-70-097]
	at org.apache.karaf.shell.log.DisplayLog.display(DisplayLog.java:143)[42:org.apache.karaf.shell.log:2.2.5.fuse-70-097]
	at org.apache.karaf.shell.log.LogTail.doExecute(LogTail.java:40)[42:org.apache.karaf.shell.log:2.2.5.fuse-70-097]
	at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:38)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at org.apache.karaf.shell.console.jline.Console.run(Console.java:233)[18:org.apache.karaf.shell.console:2.2.5.fuse-70-097]
	at java.lang.Thread.run(Thread.java:722)[:1.7.0_07]