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Estimated Difficulty:
Low
Workaround Description:

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To resolve this bug, the method

public void deleteProcessInstance(ProcessInstance processInstance);

in class

org.jbpm.db.GraphSession

have to verify the size of the token in Log table:

// delete the logs for all the process instance's tokens
query = session.createQuery(deleteLogsForTokens);
query.setParameterList("tokens", tokens);
query.executeUpdate();
// then delete the process instance
session.delete(processInstance);

need to be:

// delete the logs for all the process instance's tokens
if (tokens.size() > 0) {
query = session.createQuery(deleteLogsForTokens);
query.setParameterList("tokens", tokens);
query.executeUpdate();
}

// then delete the process instance
session.delete(processInstance);

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To resolve this bug, the method public void deleteProcessInstance(ProcessInstance processInstance); in class org.jbpm.db.GraphSession have to verify the size of the token in Log table: // delete the logs for all the process instance's tokens query = session.createQuery(deleteLogsForTokens); query.setParameterList("tokens", tokens); query.executeUpdate(); // then delete the process instance session.delete(processInstance); need to be: // delete the logs for all the process instance's tokens if (tokens.size() > 0) { query = session.createQuery(deleteLogsForTokens); query.setParameterList("tokens", tokens); query.executeUpdate(); } // then delete the process instance session.delete(processInstance);

When deleting process instances calling

graphSession.deleteProcessInstance(processInstance);

if a process instance doesn't have any logs, an hibernate error occurs.

Estimated:

Remaining:

Logged:

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