java.lang.NullPointerException

Spring JIRA | Ilayaperumal Gopinathan | 3 years ago
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  1. 0

    When trying to deploy a stream module, the ContainerRegistrar throws NPE if the deployment loader couldn't load a non-null stream based on the stream name. 07:10:29,902 ERROR DeploymentsPathChildrenCache-0 server.ContainerRegistrar:450 - Exception deploying module java.lang.NullPointerException at org.springframework.xd.dirt.server.ContainerRegistrar.deployStreamModule(ContainerRegistrar.java:549) at org.springframework.xd.dirt.server.ContainerRegistrar.onChildAdded(ContainerRegistrar.java:436) at org.springframework.xd.dirt.server.ContainerRegistrar.access$800(ContainerRegistrar.java:96) at org.springframework.xd.dirt.server.ContainerRegistrar$DeploymentListener.childEvent(ContainerRegistrar.java:803) at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:494) at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:488) at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:92) at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293) at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:83) at org.apache.curator.framework.recipes.cache.PathChildrenCache.callListeners(PathChildrenCache.java:485) at org.apache.curator.framework.recipes.cache.EventOperation.invoke(EventOperation.java:35) at org.apache.curator.framework.recipes.cache.PathChildrenCache$11.run(PathChildrenCache.java:755) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744)

    Spring JIRA | 3 years ago | Ilayaperumal Gopinathan
    java.lang.NullPointerException
  2. 0

    When trying to deploy a stream module, the ContainerRegistrar throws NPE if the deployment loader couldn't load a non-null stream based on the stream name. 07:10:29,902 ERROR DeploymentsPathChildrenCache-0 server.ContainerRegistrar:450 - Exception deploying module java.lang.NullPointerException at org.springframework.xd.dirt.server.ContainerRegistrar.deployStreamModule(ContainerRegistrar.java:549) at org.springframework.xd.dirt.server.ContainerRegistrar.onChildAdded(ContainerRegistrar.java:436) at org.springframework.xd.dirt.server.ContainerRegistrar.access$800(ContainerRegistrar.java:96) at org.springframework.xd.dirt.server.ContainerRegistrar$DeploymentListener.childEvent(ContainerRegistrar.java:803) at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:494) at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:488) at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:92) at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293) at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:83) at org.apache.curator.framework.recipes.cache.PathChildrenCache.callListeners(PathChildrenCache.java:485) at org.apache.curator.framework.recipes.cache.EventOperation.invoke(EventOperation.java:35) at org.apache.curator.framework.recipes.cache.PathChildrenCache$11.run(PathChildrenCache.java:755) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744)

    Spring JIRA | 3 years ago | Ilayaperumal Gopinathan
    java.lang.NullPointerException
  3. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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  5. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
  6. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.springframework.xd.dirt.server.ContainerRegistrar.deployStreamModule()
    2. org.springframework.xd
      ContainerRegistrar$DeploymentListener.childEvent
      1. org.springframework.xd.dirt.server.ContainerRegistrar.deployStreamModule(ContainerRegistrar.java:549)
      2. org.springframework.xd.dirt.server.ContainerRegistrar.onChildAdded(ContainerRegistrar.java:436)
      3. org.springframework.xd.dirt.server.ContainerRegistrar.access$800(ContainerRegistrar.java:96)
      4. org.springframework.xd.dirt.server.ContainerRegistrar$DeploymentListener.childEvent(ContainerRegistrar.java:803)
      4 frames
    3. Fabric8
      PathChildrenCache$5.apply
      1. org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:494)
      2. org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:488)
      2 frames
    4. Curator Framework
      ListenerContainer$1.run
      1. org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:92)
      1 frame
    5. Guava
      MoreExecutors$SameThreadExecutorService.execute
      1. com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293)
      1 frame
    6. Curator Framework
      ListenerContainer.forEach
      1. org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:83)
      1 frame
    7. Fabric8
      PathChildrenCache$11.run
      1. org.apache.curator.framework.recipes.cache.PathChildrenCache.callListeners(PathChildrenCache.java:485)
      2. org.apache.curator.framework.recipes.cache.EventOperation.invoke(EventOperation.java:35)
      3. org.apache.curator.framework.recipes.cache.PathChildrenCache$11.run(PathChildrenCache.java:755)
      3 frames
    8. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      2. java.util.concurrent.FutureTask.run(FutureTask.java:262)
      3. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      4. java.util.concurrent.FutureTask.run(FutureTask.java:262)
      5. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      6. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      7. java.lang.Thread.run(Thread.java:744)
      7 frames