java.lang.NullPointerException

Stack Overflow | QwertyForever | 7 months ago
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  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 | 3 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

  1. linxiaolong 1 times, last 4 weeks ago
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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