I rebooted my Jenkins setup, and found couple of NPE during bootup. 
Attached the stacktrace bwlow. Please let me know what is the cause for 
this NPE and what is the harm because of this. Am I missing some plugin / 
uninstalled some plugin unknowingly?

Jun 7, 2014 6:58:42 AM 
com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator authenticate
WARNING: Uncaught exception escaped doAuthenticate method
java.lang.NullPointerException
at 
com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey.getPrivateKeys(BasicSSHUserPrivateKey.java:118)
at 
com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.getPrivateKeys(SSHAuthenticator.java:439)
at 
com.cloudbees.jenkins.plugins.sshcredentials.impl.TrileadSSHPublicKeyAuthenticator.doAuthenticate(TrileadSSHPublicKeyAuthenticator.java:105)
at 
com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:408)
at 
com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:428)
at 
hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:1138)
at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:648)
at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:642)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Jun 7, 2014 6:58:42 AM 
com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator authenticate


Thanks,
Baskar.

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