http://www.techpitcher.com/javalangunsupportedclassversionerror-bad-version-number-in-class-file.html Tue, 22 Jun 2010 14:46:24 -0600 http://wordpress.org/?v=2.9.1 hourly 1 http://www.techpitcher.com/javalangunsupportedclassversionerror-bad-version-number-in-class-file.html/comment-page-1#comment-20 Abhishek Thu, 16 Oct 2008 15:13:33 +0000 http://techpitcher.com/?p=70#comment-20 This error is reported when someone is trying to deploy war which contains java files which have been compiled by jdk version which is lower than the jdk version which the tomcat uses.For example we compiled java files using jdk 1.4 and now we are trying to deploy it in tomcat which uses jdk 1.5. Solution is either make tomcat uses older version of jdk or again create java class files using the version that is being used by tomcat. This error is reported when someone is trying to deploy war which contains java files which have been compiled by jdk version which is lower than the jdk version which the tomcat uses.For example we compiled java files using jdk 1.4 and now we are trying to deploy it in tomcat which uses jdk 1.5.
Solution is either make tomcat uses older version of jdk or again create java class files using the version that is being used by tomcat.

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