NullPointerException when executing any workflow

Symptons

When any workflows is executed an NullPointerException error always raises.

Cause

JBPM tables have not been created correctly during the first startup process. JBPM no longer supports HSQLDB ( Hypersonic database).

Diagnosis

Check if tables with name starting with JBPM_* exists in your database.

Solution

You must switch to another database ( MySQL, PostgreSQL, Oracle, SQL Server, etc. ) which work properly with JBPM.

Properties

Keywords