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Class has unsupported major or minor version numbers.

In Eclipse, I created an EAR project related to ejb and model. I started the EAR and got the following error:

cannot deploy earkmz

deploy does not work = Error during deployment: exception when deploying the application [earkmz]: UnsupportedClassVersionError: class it.j2ee.kmZ.business.impl.JPACartService has unsupported major or minor version numbers that are greater than those found in the Java Runtime Environment version 1.6. 0_43. See server.log for more information.

I have only one JRE in my system (1.6.0_43), so it is impossible that I compiled my classes incorrectly with another version of the JDK.

I checked that my settings were under Window > Preferences > Java > Compiler > Compiler compliance level > 1.6.

My project classes were copied to another project, but I tried to write them from scratch, and the result will be the same. What am I missing here?

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2 answers

Verify

Project -> Properties -> Java Compiler

and set the match level there as 1.6.

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This may be because the jar [part that you could include in your EAR] was compiled with a different version.

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