[jira] [Created] (BROOKLYN-117) NullPointerException in JmxSupport

["Sam Corbett (JIRA)" <ji...@apache.org>]

Sam Corbett created BROOKLYN-117:
------------------------------------

             Summary: NullPointerException in JmxSupport
                 Key: BROOKLYN-117
                 URL: https://issues.apache.org/jira/browse/BROOKLYN-117
             Project: Brooklyn
          Issue Type: Bug
            Reporter: Sam Corbett


I deployed this blueprint to a Clocker location running in Softlayer:
{code}
name: ActiveMQ
location: my-docker-cloud
services:
- type: brooklyn.entity.messaging.activemq.ActiveMQBroker
  brooklyn.config:
    docker.dockerfile.url: https://s3-eu-west-1.amazonaws.com/brooklyn-docker/UsesJavaDockerfile
- type: brooklyn.entity.messaging.activemq.ActiveMQBroker
  brooklyn.config:
    docker.dockerfile.url: https://s3-eu-west-1.amazonaws.com/brooklyn-docker/UsesJavaDockerfile
{code}

One of the ActiveMQ brokers failed to start because of a {{NullPointerException}} thrown from {{JmxSupport}}:
{code}
2015-01-12 16:50:43,682 DEBUG b.u.task.BasicExecutionManager [brooklyn-execmanager-ZYItXzrw-262]: Exception running task Task[pre-install-command:GRPp1Omr] (rethrowing): null
java.lang.NullPointerException: null
	at brooklyn.entity.java.JmxSupport.applyJmxJavaSystemProperties(JmxSupport.java:275) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.java.JavaSoftwareProcessSshDriver.getJmxJavaSystemProperties(JavaSoftwareProcessSshDriver.java:257) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.java.JavaSoftwareProcessSshDriver.getJavaSystemProperties(JavaSoftwareProcessSshDriver.java:206) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.java.JavaSoftwareProcessSshDriver.getJavaOpts(JavaSoftwareProcessSshDriver.java:124) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.java.JavaSoftwareProcessSshDriver.getShellEnvironment(JavaSoftwareProcessSshDriver.java:104) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.messaging.activemq.ActiveMQSshDriver.getShellEnvironment(ActiveMQSshDriver.java:139) ~[brooklyn-software-messaging-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.basic.AbstractSoftwareProcessSshDriver.execute(AbstractSoftwareProcessSshDriver.java:301) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.basic.AbstractSoftwareProcessSshDriver.execute(AbstractSoftwareProcessSshDriver.java:284) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.basic.AbstractSoftwareProcessSshDriver.runPreInstallCommand(AbstractSoftwareProcessSshDriver.java:418) ~[brooklyn-software-base-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.entity.basic.AbstractSoftwareProcessDriver$2.run(AbstractSoftwareProcessDriver.java:106) ~[brooklyn-clocker-patches-0.8.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[na:1.7.0_51]
	at brooklyn.util.task.DynamicSequentialTask$DstJob.call(DynamicSequentialTask.java:337) ~[brooklyn-core-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at brooklyn.util.task.BasicExecutionManager$SubmissionCallable.call(BasicExecutionManager.java:469) ~[brooklyn-core-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
	at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_51]
	at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
{code}

Line 275 of {{JmxSupport}} is:
{code}
        HostAndPort jmx = BrooklynAccessUtils.getBrooklynAccessibleAddress(entity, entity.getAttribute(JMX_PORT));
{code}

The {{entity}} field should not be null in a sane world because it's protected by a {{checkNotNull}} in the class' constructor.

Two subsequent deployments of the same blueprint were successful.




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