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  1. ,
    via Google Groups by Marcus Haebler

    Update "latest" to Java 8 on DockerHub.

  2. ,
    via Stack Overflow by ERJAN

    This exception occurs when using an older version of java. Mainly when trying to run a jar compiled with a newer Java version in an older Java version. We can avoid this issue by executing the jar in the same version which it was compiled.

Solutions on the web

via freemind by alexandreseabra
, 1 year ago
com/oracle/appbundler/AppBundlerTask : Unsupported major.minor version 51.0
via Google Groups by simonTifo via StackOverflow, 6 months ago
com/sun/faces/config/WebConfiguration : Unsupported major.minor version 51.0
via Stack Overflow by simonTifo
, 2 years ago
com/sun/faces/config/WebConfiguration : Unsupported major.minor version 51.0
via dolinked.com by Unknown author, 2 years ago
com/sun/faces/config/WebConfiguration : Unsupported major.minor version 51.0
via linuxhospital.com by Unknown author, 2 years ago
test_hello_world : Unsupported major.minor version 51.0
java.lang.UnsupportedClassVersionError: com/oracle/appbundler/AppBundlerTask : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)