java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0, java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0]

  1. 0

    AppEngine deployment error: java.lang.UnsupportedClassVersionError

    Stack Overflow | 2 months ago | Katedral Pillon
    java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0, java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0]
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    how do I know if my code base has java 8 methods

    Stack Overflow | 2 months ago | Katedral Pillon
    java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0, java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0]
  3. 0

    AppEngine deployment error: java.lang.UnsupportedClassVersionError

    Google Groups | 2 months ago | Katedral Pillon via StackOverflow
    java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0]
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  5. 0

    how do I know if my code base has java 8 methods

    Google Groups | 2 months ago | Katedral Pillon via StackOverflow
    java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0]
  6. 0

    on Google App Engine 500 Error, it should be 200 instead of 500

    Stack Overflow | 4 years ago | Faisal Amjad
    java.lang.UnsupportedClassVersionError: adv/web/mid/exam/FriendServlet : Unsupported major.minor version 51.0, java.lang.UnsupportedClassVersionError: adv/web/mid/exam/MessageServlet : Unsupported major.minor version 51.0, java.lang.UnsupportedClassVersionError: adv/web/mid/exam/TokenServlet : Unsupported major.minor version 51.0]

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    Root Cause Analysis

    1. java.lang.UnsupportedClassVersionError

      org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0, java.lang.UnsupportedClassVersionError: org/apache/jsp/editor_005fform_jsp : Unsupported major.minor version 52.0]

      at org.mortbay.jetty.servlet.ServletHandler.initialize()
    2. Jetty Server
      WebAppContext.doStart
      1. org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:656)
      2. org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
      3. org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
      4. org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
      5. org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
      5 frames
    3. Jetty Util
      AbstractLifeCycle.start
      1. org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
      1 frame
    4. com.google.apphosting
      JettyServletEngineAdapter.serviceRequest
      1. com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:203)
      2. com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:176)
      3. com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:133)
      3 frames
    5. appengine-managed-runtime
      JavaRuntime$RequestRunnable.run
      1. com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:501)
      1 frame
    6. Google tracing
      TraceContext$TraceContextRunnable.run
      1. com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:446)
      2. com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:453)
      3. com.google.tracing.CurrentContext.runInContext(CurrentContext.java:276)
      4. com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:312)
      5. com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:304)
      6. com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:450)
      6 frames
    7. appengine-managed-runtime
      ThreadGroupPool$PoolEntry.run
      1. com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:235)
      1 frame
    8. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame