java.lang.UnsupportedClassVersionError: javax/swing/JFormattedTextField (Unsupported major.minor version 48.0)

Oracle Community | 807577 | 1 decade ago
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    java.lang.UnsupportedClassVersionError: javax/swing/JFormattedTextField (Unsupported major.minor version 48.0)
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    java.lang.UnsupportedClassVersionError: javax/swing/JFormattedTextField (Unsupported major.minor version 48.0)
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    Root Cause Analysis

    1. java.lang.UnsupportedClassVersionError

      javax/swing/JFormattedTextField (Unsupported major.minor version 48.0)

      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. filecollection
      FileCollectionClass.main
      1. filecollection.FileCollectionClass.<init>(FileCollectionClass.java:20)
      2. filecollection.FileCollectionClass.main(FileCollectionClass.java:50)
      2 frames