this is not even a project, our custom framework does not allow the creation of a normal ear project (i wish it did), this is because during the make, all hbm's go through a special xsl transform which appens them 3 auditing fields. also each class is byte code manipulated with aspectwerkz. the ear is running under isolated mode. by i digress. the important thing to note, is that the only difference is that the launcher if eclipse 3.3 has a source custom class which references jboss sources as well as our own sources like so: c:\Workdir\lib\JBOSSTS_4_2_3_SP7\ArjunaJTA\jdbc\classes c:\Workdir\lib\JBOSSTS_4_2_3_SP7\ArjunaJTA\jta\classes c:\Workdir\lib\jboss-4.2.3.GA-src\server\src\main C:\Workdir\lib\jboss-4.2.3.GA-src\system\src\main jbpm-jpdl-suite-3.2.3.zip C:\Workdir\lib\hibernate-3.2\src our source projects and finally in the end the default class which are rt,jsse,jce,charsets and tools jar. i also noted that in eclipse 3.5 instead of the usual run.jar, there is something called a jar container, i tried replacing with run.jar but i get the same result. i just tried running a new launcher under eclipse 3.3 with out jboss sources , and now it fails on eclipse 3.3 as well, but what does that mean? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4251092#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...