From: <glassfish_at_javadesktop.org>
Date: Mon, 20 Sep 2010 20:21:34 PDT

i had same issue, it was because of nebeans make wrong MANIFEST.MF for app-client, try manualy unpack your_app.ear, then unpack your_app_client.jar, edit MANIFEST.MF and exclude from Class-Path your_app_ejb.jar
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