PK75663: IllegalArgumentException: the 'no null' constraint is violated w hen transforming C# to UML with an unknown generic parameter

APAR status

• Closed as program error.

Error description

• Description:
  Unknown Types are not handled.
  Reverse tranformation does not handle any unknown type present i
  n the C# code. Either, the type is lost or transformation aborts
   with NullPointerException.
  
  IllegalArgumentException: the 'no null' constraint is violated w
  hen transforming C# to UML with an unknown generic parameter.
  java.lang.IllegalArgumentException: The 'no null' constraint is
  violated
    The 'no null' constraint is violated
      Transform context stack
      The 'no null' constraint is violated
        Transform 1421104308:  Element 'Processing field ' was exe
  cuting source 'com.ibm.xtools.cli.model.impl.FieldImpl@22ca22ca
  (modifiable: true, generated: false, startLine: 9, startColumn:
  9, endLine: 9, endColumn: 41) (documentation: null, name: myGene
  ricList, attributeSections: null) (modifiers: 512) (constant: fa
  lse, initializer: null)'
  (...)
  Stack trace is:
  !MESSAGE IRJH0012E Transformation 'C# to UML' aborted during its
   execution; descriptor id='com.ibm.xtools.transform.csharp.uml.C
  Sharp-to-UML'
  !STACK 0
  java.lang.IllegalArgumentException: The 'no null' constraint is
  violated
   at org.eclipse.emf.common.util.BasicEList.validate(Unknown Sour
  ce)
   at org.eclipse.emf.ecore.util.EcoreEList.validate(Unknown Sourc
  e)
   at org.eclipse.emf.common.util.BasicEList.addUnique(Unknown Sou
  rce)
   at org.eclipse.emf.common.notify.impl.NotifyingListImpl.doAddUn
  ique(Unknown Source)
   at org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUniq
  ue(Unknown Source)
   at org.eclipse.emf.common.util.BasicEList.add(Unknown Source)
   at org.eclipse.uml2.common.util.SubsetSupersetEObjectEList.add(
  Unknown Source)
   at com.ibm.xtools.transform.csharp.uml.internal.util.TransformU
  til.createGenericInstantiation(Unknown Source)
   at com.ibm.xtools.transform.csharp.uml.internal.util.TransformU
  til.getUMLType(Unknown Source)
   at com.ibm.xtools.transform.csharp.uml.internal.util.TransformU
  til.createAttribute(Unknown Source)
   at com.ibm.xtools.transform.csharp.uml.internal.rules.VariableR
  ule.createTarget(Unknown Source)
   at com.ibm.xtools.transform.core.AbstractRule.execute(Unknown S
  ource)
  (...)
  Steps to reproduce:
  Create a C# solution with a class.
  Create an attribute of type List?Whatever? (Whatever has to be u
  nknown type)
  Transform C# to UML : IllegalArgumentException, the transformati
  on aborts.
  Workaround:
  Correct the C# solution to make the 'Whatever' class known by th
  e transformation.
  However this issue is linked with another defect that I will cre
  ate, in which referenced libraries are not found by RSM. Therefo
  re the type may be defined in another library and in this case t
  here is no workaround.
  

Local fix

Problem summary

• IllegalArgumentException: the 'no null' constraint is
  violated when transforming C# to UML with an unknown generic
  parameter.
  

Problem conclusion

• Fixed in release 7.5.2.
  

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

• Fixed component name

  SW MODELER LIN

• Fixed component ID

  5724I6902

Applicable component levels

• R705 PSN

     UP