jBPM 5 does not provide value for processInstanceId in email service nodes

Solution Verified - Updated -

Issue

  • The documentation on notifications from human task nodes states that there is a task variable which is defined as:
processInstanceId: internal id of a process instance that the task belongs to

However, trying to include the processInstanceId in the email just like in the human task escalation notifications the variable has no value in the email task node.

Environment

  • Red Hat JBoss Business Rules Managment System (BRMS)
    • 5.3.x
  • jBPM
    • 5.2

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