PM66492: Unable to build the model due to Diamond of death Problem

APAR status

• Closed as Permanent restriction.

Error description

• For the specific model; the Project under folder
  'ActiveClass_and_inheritance' contains two classes having a
  generalization relationship between them.
  Assume class A is an active class which contains a statechart,
  and class B inherit from it.
  Both class A and B are compiled as a library.
  
  In a different project found under
  'ActiveClass_and_inheritance2' folder, class C inherits from
  class B. In order to do that ? class A and B were defined in the
  new project as External classes.
  
  After which the second model fails to compile due to ambigous
  error which is obvious.
  
  Here, CG doesn't recognize the situation when active reactive
  class inherits from another active reactive class. As a result,
  derived class declaration contains redundant base classes
  OMThread and OMReactive.
  

Local fix

Problem summary

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  * USERS AFFECTED:                                              *
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  * PROBLEM DESCRIPTION:                                         *
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  * RECOMMENDATION:                                              *
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  This is the expected behavior: When an element is declared
  as external, the element generation is the responsibility of
  the user, abd Rhapsody does not make any assumptions about
  its creation. Hence you see the includes added to class C
  
  There is a better and recomended way to achieve this:
  
  This element (package A in the sample) belongs and is being
  generated in another Rhapsody model. So all you need to do
  is to add this element to your model BY REFERENCE ! . (Again
  - make sure its not external). Now all will work as
  expected.
  

Problem conclusion

• This is how the feature is designed to work.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels