Setting:

• 2 engine; "tenant1" and "tenant2"; both access different database schemas
• Start a process instance on "tenant1"
• the process contains a delegate that starts a process on "tenant2"

Expected behavior:

• starting the process instance suceeds

Current behavior:

• starting the process instance fails because the process definition cannot be found

Reason:

• the "tenant2" engine cannot access its datasource but works in the current transaction started by the "tenant1" engine
• This is because the service methods use the "txRequired" command interceptor chain that only opens a new CommandContext (and therefore transaction), if there is no active context yet

Solution idea:

• also create a new CommandContext if the current engine is a different one than the one that opened the current CommandContext (or alternatively: if there exists no active CommandContext associated with the current engine)