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  1. ,
    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 openbravopos by ctorresv
, 1 year ago
net/adrianromero/tpv/config/JFrmConfig (Unsupported major.minor version 49.0)
via openbravopos by nobody
, 1 year ago
ne ero/tpv/forms/JFrmTPV (Unsupported major.minor version 49.0)
via by Unknown author, 2 years ago
HashMapTest (Unsupported major.minor version 49.0)
via by Unknown author, 2 years ago
via Google Groups by depo, 6 months ago
MailSendDialog (Unsupported major.minor version 49.0)
via Coderanch by David O'Meara, 1 year ago
isogame/IsoLauncher (Unsupported major.minor version 49.0)
java.lang.UnsupportedClassVersionError: net/adrianromero/tpv/config/JFrmConfig (Unsupported major.minor version 49.0)	at java.lang.ClassLoader.defineClass0(Native Method)	at java.lang.ClassLoader.defineClass(Unknown Source)