ava.lang.UnsupportedClassVersionError: org/apache/poi/xssf/usermodel/XSSFWorkbook *(Unsupported major.minor version 49.0)*

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    ava.lang.UnsupportedClassVersionError: org/apache/poi/xssf/usermodel/XSSFWorkbook *(Unsupported major.minor version 49.0)*
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    ava.lang.UnsupportedClassVersionError: Bad version number in .class file

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    Root Cause Analysis

    1. ava.lang.UnsupportedClassVersionError

      org/apache/poi/xssf/usermodel/XSSFWorkbook *(Unsupported major.minor version 49.0)*

      at java.lang.ClassLoader.defineClass0()
    2. Java RT
      ClassLoader.loadClassInternal
      1. java.lang.ClassLoader.defineClass0(Native Method)
      2. java.lang.ClassLoader.defineClass(Unknown Source)
      3. java.security.SecureClassLoader.defineClass(Unknown Source)
      4. java.net.URLClassLoader.defineClass(Unknown Source)
      5. java.net.URLClassLoader.access$100(Unknown Source)
      6. java.net.URLClassLoader$1.run(Unknown Source)
      7. java.security.AccessController.doPrivileged(Native Method)
      8. java.net.URLClassLoader.findClass(Unknown Source)
      9. java.lang.ClassLoader.loadClass(Unknown Source)
      10. sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
      11. java.lang.ClassLoader.loadClass(Unknown Source)
      12. java.lang.ClassLoader.loadClassInternal(Unknown Source)
      12 frames
    3. Unknown
      xssf.main
      1. xssf.main(xssf.java:18)
      1 frame