java.lang.UnsupportedClassVersionError: Bad version number in .class file?
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Published on 2010-03-18T00:16:31Z
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2010/03/18
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I am getting this error when I include an opensource library that I had to compile from source. Now, all the suggestions on the web indicate that the code was compiled in one version and executed in another version (new on old). However, I only have one version of JRE on my system. If I run the commands:
$ javac -version
javac 1.5.0_18
$ java -version
java version "1.5.0_18"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_18-b02)
Java HotSpot(TM) Server VM (build 1.5.0_18-b02, mixed mode)
and check in Eclipse for the properties of the java library, I get 1.5.0_18
Therefore, I have to conclude something else, internal to a class itself, is throwing the exception?? Is that even possible?
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