WindowTester fails to launch the application if it is using xerces.
I noticed that an exception that says "....SAXParserFactoryImpl not found" is logged after trying to launch the application. At second launch try exception turns to "...ApplicationException. No application id has been found".
There are some similar issues in other forums and it seems that the problem occurs if more there is a jar that contains SAXParserFactoryImpl class other than jdk's rt.jar.
I can launch my application normally, but WindowTester can't launch it. The problem can be reproduced by adding xercesImpl jar to example project ContactManagerSwing shipped with WindowTester plugin. Just add this jar and try to launch the application.
(I am using Eclipse Helios 3.6.1, WindowTester 6.0.0, Java 1.6.0_22, Xerces 2.6.2)