The HistoricVariableInstanceAsyncStartTest (added with CAM-12373) is causing failures on two concurrency variable tests. ConcurrentVariableUpdateTest or DatabaseFlushTest are failing in case they run close after the above test with constraint violation exception for the variable table instead throwing OLE or no exception at all. So we decide to disable the test for h2 database.

Acceptance Criteria (Required on creation):

Enable HistoricVariableInstanceAsyncStartTest for h2 and ensure stable execution of concurrency tests.

Hints (Optional):

Additional logging showed that the test does clean up at the end and the constraint is thrown due to variables added in the concurrency test itself.