java.lang.NullPointerException

Stack Overflow | QwertyForever | 3 months ago
  1. 0

    Spring MVC and Websocket Exception using Sockjs with Stompjs

    itquestionz.com | 1 year ago
    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.socket.sockjs.SockJsException: Uncaught failure in SockJS request, uri=http://localhost:8080/frontend/track/info; nested exception is java.lang.NullPointerException
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  3. 0

    Spring MVC and Websocket Exception using Sockjs with Stompjs

    Stack Overflow | 2 years ago | Diego Fernando Murillo Valenci
    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.socket.sockjs.SockJsException: Uncaught failure in SockJS request, uri=http://localhost:8080/frontend/track/info; nested exception is java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.util.ArrayList.<init>()
    2. Java RT
      ArrayList.<init>
      1. java.util.ArrayList.<init>(ArrayList.java:164)
      1 frame
    3. Server Core
      ServerCore.getRuntimes
      1. org.eclipse.wst.server.core.internal.ResourceManager.getRuntimes(ResourceManager.java:737)
      2. org.eclipse.wst.server.core.ServerCore.getRuntimes(ServerCore.java:289)
      2 frames
    4. oracle.eclipse.tools
      StartupHandler.earlyStartup
      1. oracle.eclipse.tools.weblogic.upgrade.internal.WlsRuntimeNameWorkspaceUpgradeParticipant.check(WlsRuntimeNameWorkspaceUpgradeParticipant.java:52)
      2. oracle.eclipse.tools.common.upgrade.internal.UpgradeFrameworkImpl.initialize(UpgradeFrameworkImpl.java:135)
      3. oracle.eclipse.tools.common.upgrade.UpgradeFramework.initialize(UpgradeFramework.java:26)
      4. oracle.eclipse.tools.common.upgrade.internal.StartupHandler.earlyStartup(StartupHandler.java:18)
      4 frames
    5. Eclipse UI
      EarlyStartupRunnable.run
      1. org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:87)
      2. org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
      2 frames
    6. Eclipse Core
      SafeRunner.run
      1. org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
      1 frame
    7. Eclipse UI
      Workbench$55.run
      1. org.eclipse.ui.internal.Workbench$55.run(Workbench.java:2552)
      1 frame
    8. Eclipse Jobs
      Worker.run
      1. org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
      1 frame