Hi

Our Jenkins is not stable. We are frequently getting some errors in
logs.
I have upgraded with LTS and also i have upgraded all plug-in with
latest version.

Even though i am getting below mentioned errors.  Can anyone please
advise me, how should i do to make stable my Jenkins?



Feb 23, 2012 6:13:28 PM jenkins.model.Jenkins$6 onTaskFailed
SEVERE: Failed Loading plugin run-condition
java.io.IOException: Dependency token-macro (1.4) doesn't exist
        at
hudson.PluginWrapper.resolvePluginDependencies(PluginWrapper.java:424)
        at hudson.PluginManager$2$1$1.run(PluginManager.java:284)



eb 23, 2012 6:13:28 PM hudson.util.RobustReflectionConverter
doUnmarshal
WARNING: Skipping a non-existent type
com.thoughtworks.xstream.mapper.CannotResolveClassException:
hudson.plugins.sshslaves.SSHLauncher :
hudson.plugins.sshslaves.SSHLauncher
        at
com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:
68)
        at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:
38)
        at
com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:
71)
        at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:
38)
        at
com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:
88)
        at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:
38)
        at
com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:
86)
        at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:
38)
        at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:
38)



SEVERE: Failed Initializing plugin pmd
java.lang.NullPointerException
        at hudson.PluginManager$2$1$2.run(PluginManager.java:301)
        at org.jvnet.hudson.reactor.TaskGraphBuilder
$TaskImpl.run(TaskGraphBuilder.java:146)
        at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
        at jenkins.model.Jenkins$5.runTask(Jenkins.java:797)
        at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
        at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
        at java.util.concurrent.ThreadPoolExecutor
$Worker.runTask(ThreadPoolExecutor.java:665)
        at java.util.concurrent.ThreadPoolExecutor
$Worker.run(ThreadPoolExecutor.java:690)
        at java.lang.Thread.run(Thread.java:797)
Feb 23, 2012 6:13:28 PM jenkins.model.Jenkins$6 onTaskFailed
SEVERE: Failed Initializing plugin checkstyle
java.lang.NullPointerException
        at hudson.PluginManager$2$1$2.run(PluginManager.java:301)
        at org.jvnet.hudson.reactor.TaskGraphBuilder
$TaskImpl.run(TaskGraphBuilder.java:146)
        at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
        at jenkins.model.Jenkins$5.runTask(Jenkins.java:797)
        at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
        at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
        at java.util.concurrent.ThreadPoolExecutor
$Worker.runTask(ThreadPoolExecutor.java:665)
        at java.util.concurrent.ThreadPoolExecutor
$Worker.run(ThreadPoolExecutor.java:690)
        at java.lang.Thread.run(Thread.java:797)
Feb 23, 2012 6:13:28 PM jenkins.model.Jenkins$6 onAttained
INFO: Started all plugins

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