[rules-users] Drools 4.0.7 BRMS issues with empty custom_nodetypes.xml

Greeting, I deployed Drools 4.0.7 BRMS war file to GlassFish V2 on my Windows XP SP2 laptop successfully, but could not start BRMS from GlassFish. I got http 503 service not available error. The Java stacktrace indicated Jackrabbit failed to read custom node type definitions stored in custom_nodetypes.xml. Then I checked the custom_notetypes.xml; it is empty, zero size. Any idea on how I can workaround it, or will a dummy/smaple custom_nodetypes.xml work? Thank you and appreciated any input you may have. Regards, Simon