UnsupportedClassVersionError: JVMCFRE003 bad major version in WebSphere AS 7

Question

I am getting this error

java.lang.UnsupportedClassVersionError: JVMCFRE003 bad major version; class=map/CareMonths, offset=6

My Eclipse\'s J

Answer 1

If you use maven try to add in the pom.xml

    ...
    1.7
    1.7
    ...

Otherwise try to change the compiler version.