Error message needs to be more descriptive

Issue coppied from BZ (original reporter is cojan@redhat.com)

An exception occurred while performing a VDB operation * null while trying a export an unsupported VDB to dynamic VDB

Document URL:
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Section Number and Name:

Describe the issue:
Installed jbosstools-teiid-designer-9.0.2.Final-SNAPSHOT-POC-v7.zip in JBDS 8.1.0.GA
to have the functionality (pre-production) of being able to generate Dynamic VDB out of VDBs.

Error message is not descriptive when trying to export a VDB to a Dynamic VDB
An exception occurred while performing a VDB operation

• null

See attachment for screenshot. Trying to export the FinancialsVDB

Suggestions for improvement:
null should be something like unsupported VDB

Additional information: