java.lang.UnsupportedClassVersionError: MyFirstApp (U nsupported major.minor version 49.0)

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    Root Cause Analysis

    1. java.lang.UnsupportedClassVersionError

      MyFirstApp (U nsupported major.minor version 49.0)

      at java.lang.ClassLoader.defineClass0()
    2. Java RT
      ClassLoader.defineClass
      1. java.lang.ClassLoader.defineClass0(Native Method)
      2. java.lang.ClassLoader.defineClass(ClassLoader.java:537)
      2 frames