SEVERE: Timer task hudson.slaves.NodeProvisioner$NodeProvisionerInvoker@2f47a11d failed
java.lang.NullPointerException
at jenkins.bouncycastle.api.PEMEncodable.decode(PEMEncodable.java:197)
at jenkins.bouncycastle.api.PEMEncodable.decode(PEMEncodable.java:133)
at hudson.plugins.ec2.EC2PrivateKey.getFingerprint(EC2PrivateKey.java:65)
at hudson.plugins.ec2.EC2PrivateKey.find(EC2PrivateKey.java:96)
at hudson.plugins.ec2.SlaveTemplate.getKeyPair(SlaveTemplate.java:863)
at hudson.plugins.ec2.SlaveTemplate.provisionOndemand(SlaveTemplate.java:450)
at hudson.plugins.ec2.SlaveTemplate.provision(SlaveTemplate.java:377)
at hudson.plugins.ec2.EC2Cloud.getNewOrExistingAvailableSlave(EC2Cloud.java:530)
at hudson.plugins.ec2.EC2Cloud.provision(EC2Cloud.java:547)
at hudson.slaves.NodeProvisioner$StandardStrategyImpl.apply(NodeProvisioner.java:701)
at hudson.slaves.NodeProvisioner.update(NodeProvisioner.java:307)
at hudson.slaves.NodeProvisioner.access$000(NodeProvisioner.java:60)
at hudson.slaves.NodeProvisioner$NodeProvisionerInvoker.doRun(NodeProvisioner.java:796)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:50)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)