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  1. Jenkins
  2. JENKINS-75840

NullPointerException in CloudHelper.getInstanceWithRetry

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    • 1945.vec801d7e4139

      EC2 plugin. version 1935.v9b_77210472b_1

      After a instance restart, it fails to start if there are node descriptors related to EC agents in the folder /var/jenkins_home/nodes/ . If we delete the EC* files under that folder, the instance then starts.

      Error Stacktrace:

      java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because the return value of "software.amazon.awssdk.awscore.exception.AwsErrorDetails.errorCode()" is null
  at PluginClassLoader for ec2//hudson.plugins.ec2.CloudHelper.getInstanceWithRetry(CloudHelper.java:31)
  at PluginClassLoader for ec2//hudson.plugins.ec2.EC2Computer.getState(EC2Computer.java:200)
  at PluginClassLoader for ec2//hudson.plugins.ec2.EC2RetentionStrategy.start(EC2RetentionStrategy.java:293)
  at PluginClassLoader for ec2//hudson.plugins.ec2.EC2RetentionStrategy.start(EC2RetentionStrategy.java:50)
  at hudson.model.AbstractCIBase.createNewComputerForNode(AbstractCIBase.java:193)
  at hudson.model.AbstractCIBase.updateComputer(AbstractCIBase.java:154)
  at hudson.model.AbstractCIBase.lambda$updateComputerList$2(AbstractCIBase.java:256)
  at hudson.model.Queue._withLock(Queue.java:1411)
  at hudson.model.Queue.withLock(Queue.java:1285)
  at hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:241)
  at jenkins.model.Jenkins.updateComputerList(Jenkins.java:1606)
  at jenkins.model.Nodes$4.run(Nodes.java:369)
  at hudson.model.Queue._withLock(Queue.java:1411)
  at hudson.model.Queue.withLock(Queue.java:1285)
  at jenkins.model.Nodes.load(Nodes.java:357)
  at jenkins.model.Jenkins$13.run(Jenkins.java:3486)
  at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:175)
  at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:304)
  at jenkins.model.Jenkins$5.runTask(Jenkins.java:1149)
  at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:221)
  at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:120)
  at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
  at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
  at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
  at java.base/java.lang.Thread.run(Thread.java:840)

      In the PR https://github.com/jenkinsci/ec2-plugin/commit/730b5c25bdae64f2a4a62a1514eb7d063930b50d#diff-5d820e85c2a8648dc84abbb11fd123e5cd15ec3c4b0069079ebf3bcc78c7333e in line 31, we can check that there was a change to use AWS SDK for Java 2.x. It is described in https://issues.jenkins.io/browse/JENKINS-73640. It was released in version 1885.v730b_5c25b_da_e

      For any reason, the new code introduced to use the AWS SDK is raising an exception because the errorCode is null

            basil Basil Crow
            jgarciacloudbees Javier García
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              Created:
              Updated:
              Resolved: