eclipselink PersistenceUnitLoadingEception in executable JAR

Question

I am developing a stand-alone java application which uses eclipselink. It is all fine when I execute the app from eclipse IDE. But I\'ve exported an executable JAR file, and

Answer 1

I found the respective solution (that is if you are not using EclipseLink 2.3.2), as mentioned by GaDo in Bug 364748, the solution is to add the following line into MANIFEST.MF

Eclipse-BundleShape: dir

This leads to the plug-in being exported as directory instead as JAR file, which makes persistence.xml accessible.