See <http://hudson.opengeo.org/hudson/job/geoserver-trunk-deploy/1755/>
------------------------------------------
Started by upstream project "geoserver-trunk" build number 4092
[geoserver] $ mvn -U -Djava.awt.headless=true -DskipTests -P allExtensions,proxy,printing,ftp deploy
FATAL: command execution failed
java.io.IOException: Cannot run program "mvn" (in directory "<http://hudson.opengeo.org/hudson/job/geoserver-trunk-deploy/ws/"\)>: java.io.IOException: error=24, Too many open files
at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
at hudson.Proc$LocalProc.<init>(Proc.java:192)
at hudson.Proc$LocalProc.<init>(Proc.java:164)
at hudson.Launcher$LocalLauncher.launch(Launcher.java:638)
at hudson.Launcher$ProcStarter.start(Launcher.java:273)
at hudson.Launcher$ProcStarter.join(Launcher.java:280)
at hudson.tasks.Maven.perform(Maven.java:253)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:601)
at hudson.model.Build$RunnerImpl.build(Build.java:174)
at hudson.model.Build$RunnerImpl.doRun(Build.java:138)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:416)
at hudson.model.Run.run(Run.java:1257)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:129)
Caused by: java.io.IOException: java.io.IOException: error=24, Too many open files
at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
at java.lang.ProcessImpl.start(ProcessImpl.java:65)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
... 15 more