Hi Team, 
I'm facing an issue while configuring xvfb plugin, somehow its not finding 
my display name
Have added it in 

1. job->configure->Xvfb specific display name --> 99
2. in Pre steps-> Execute shell--> export DISPLAY=:99
3. in manage jenkins-> manage nodes-> master-> configure-> added env 
variable name ="DISPLAY" value=":99"
4. added xvfb configuration directory

Is there anything I'm missing in configuration?
Here is the log:

Xvfb starting$ /usr/bin/X11/Xvfb -displayfd 2 -screen 0 1024x768x24 -fbdir 
/var/lib/jenkins/2014-07-18_11-51-132622983017347894755xvfb
ERROR: Processing failed due to a bug in the code. Please report this to 
[email protected] 
<http://stacktrace.jenkins-ci.org/search?query=java.lang.IllegalStateException>:
 No display name received from Xvfb within 10 seconds
        at 
org.jenkinsci.plugins.xvfb.AutoDisplayNameFilterStream.getDisplayNumber(AutoDisplayNameFilterStream.java:43)
 
<http://stacktrace.jenkins-ci.org/search/?query=org.jenkinsci.plugins.xvfb.AutoDisplayNameFilterStream.getDisplayNumber&entity=method>
        at 
org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.launchXvfb(XvfbBuildWrapper.java:547)
 
<http://stacktrace.jenkins-ci.org/search/?query=org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.launchXvfb&entity=method>
        at 
org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.setUp(XvfbBuildWrapper.java:594) 
<http://stacktrace.jenkins-ci.org/search/?query=org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.setUp&entity=method>
        at 
hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:653)
 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun&entity=method>
        at 
hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:535) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.AbstractBuild$AbstractBuildExecution.run&entity=method>
        at hudson.model.Run.execute(Run.java:1732) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Run.execute&entity=method>
        at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:529) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild.run&entity=method>
        at hudson.model.ResourceController.execute(ResourceController.java:88) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.ResourceController.execute&entity=method>
        at hudson.model.Executor.run(Executor.java:234) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Executor.run&entity=method>
project=hudson.maven.MavenModuleSet@1352dbf[Trail-Web]
project.getModules()=[hudson.maven.MavenModule@1abe075[Trail-Web/Project:Project][Trail-Web/Project:Project][relativePath:Project]]
project.getRootModule()=hudson.maven.MavenModule@1abe075[Trail-Web/Project:Project][Trail-Web/Project:Project][relativePath:Project]
FATAL: No display name received from Xvfb within 10 
secondsjava.lang.IllegalStateException 
<http://stacktrace.jenkins-ci.org/search?query=java.lang.IllegalStateException>:
 No display name received from Xvfb within 10 seconds
        at 
org.jenkinsci.plugins.xvfb.AutoDisplayNameFilterStream.getDisplayNumber(AutoDisplayNameFilterStream.java:43)
 
<http://stacktrace.jenkins-ci.org/search/?query=org.jenkinsci.plugins.xvfb.AutoDisplayNameFilterStream.getDisplayNumber&entity=method>
        at 
org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.launchXvfb(XvfbBuildWrapper.java:547)
 
<http://stacktrace.jenkins-ci.org/search/?query=org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.launchXvfb&entity=method>
        at 
org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.setUp(XvfbBuildWrapper.java:594) 
<http://stacktrace.jenkins-ci.org/search/?query=org.jenkinsci.plugins.xvfb.XvfbBuildWrapper.setUp&entity=method>
        at 
hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:653)
 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun&entity=method>
        at 
hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:535) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.AbstractBuild$AbstractBuildExecution.run&entity=method>
        at hudson.model.Run.execute(Run.java:1732) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Run.execute&entity=method>
        at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:529) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild.run&entity=method>
        at hudson.model.ResourceController.execute(ResourceController.java:88) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.ResourceController.execute&entity=method>
        at hudson.model.Executor.run(Executor.java:234) 
<http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Executor.run&entity=method>



It should some simple thing which I'm missing but didn't find any solution 
anywhere, Please suggest!
Regards,
pooja

 <[email protected]>

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