Hi i am new to JBPM..Could any one help me in resolving this issue. To set up the JBPM i folloed the instruction from the User's guide. Then i configurd the jbpm4.4/install/ biuld.xml I chanaged  database name from hsqldb to mysql.Also changed the mysql.properties. Because of these changes, build created the all the tables.

After setting up the environment i imported the examples..then i define a sample processDefinitation as show in the document. Then i deployed the process definitation and process instance. Finaly i got a problem while deleting the  deployed porcess definitation.