Question

I try to compile a webtools project for Java5/Tomcat 5.5 in ubuntu (with manually installed eclipse 3.4). I set the installed jre to java-1.5.0-sun-1.5.0.18 and the compiler compliance level to 1.5. When I export this to a .war file, and try to deploy it in Tomcat (Windows XP, Tomcat 5.5.27, Java 1.5.0_18) , I get the following error:

SEVERE: Error deploying web application archive Jdbc2Ei.war
java.lang.UnsupportedClassVersionError: Bad version number in .class file
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
...

Anybody knows how to solve this?

Answer 1

Compiled it under windows, and it works! Some bug somewhere… there will be a time that this problem will be fixed.