173-4-65

if (itemPropertyDescriptors == null) { super.getPropertyDescriptors(object); addFeatureNamePropertyDescriptor(object); addDataValuePropertyDescriptor(object); addValuePropertyDescriptor(object); addFeaturePropertyDescriptor(object); addReferenceValuePropertyDescriptor(object); } return itemPropertyDescriptors;
if (objectChanges == null) { objectChanges = new EcoreEMap<EObject,EList<FeatureChange>>(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY, EObjectToChangesMapEntryImpl.class, this, ChangePackage.CHANGE_DESCRIPTION__OBJECT_CHANGES); } return objectChanges;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/ecore/change/provider/FeatureMapEntryItemProvider.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/change/impl/ChangeDescriptionImpl.java
Method name: `List getPropertyDescriptors(Object)` |  | Method name: `EMap> getObjectChanges()`
Number of AST nodes: 8 |  | Number of AST nodes: 3

1

    if (itemPropertyDescriptors == null)↵

1

    if (objectChanges == null)↵

2

        {↵

2

        {↵

3

          super.getPropertyDescriptors(object);↵

3

          ↵

4

          addFeatureNamePropertyDescriptor(object);↵

5

          addDataValuePropertyDescriptor(object);↵

6

          addValuePropertyDescriptor(object);↵

7

          addFeaturePropertyDescriptor(object);↵

8

          addReferenceValuePropertyDescriptor(object);↵

9

        }↵

10

        return itemPropertyDescriptor↵

4

    objectChanges = new EcoreEMap<EObject,EList<FeatureChange>>(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY, EObjectToChangesMapEntryImpl.class, this, ChangePackage.CHANGE_DESCRIPTION__OBJECT_CHANGES);↵

5

        }↵

11

    s;

6

        return objectChanges;

See real code fragment |  | See real code fragment

Summary
Number of common nesting structure subtrees | 1
Number of refactorable cases | 0
Number of non-refactorable cases | 1
Time elapsed for finding largest common nesting structure subtrees (ms) | 0.2
Clones location | Clones are in different classes
Number of node comparisons | 15

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 7
   Number of unmapped statements in the second code fragment | 2
   Time elapsed for statement mapping (ms) | 62.1
   Clone type | Type 3

   Mapped Statements
   ID | Statement |  | ID | Statement
   --- | --- | --- | --- | ---

   1

       if (itemPropertyDescriptors == null)

   1 | if (itemPropertyDescriptors == null)
   1 | if (objectChanges == null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   itemPropertyDescriptors | objectChanges | VARIABLE_NAME_MISMATCH
   java.util.List | org.eclipse.emf.common.util.EMap> | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.util.List<org.eclipse.emf.edit.provider.IItemPropertyDescriptor> of variable itemPropertyDescriptors does not match with type org.eclipse.emf.common.util.EMap<org.eclipse.emf.ecore.EObject,org.eclipse.emf.common.util.EList<org.eclipse.emf.ecore.change.FeatureChange>> of variable objectChanges
   - Make classes java.util.List and org.eclipse.emf.common.util.EMap> extend a common superclass

   1

       if (objectChanges == null)

   2 | objectChanges = new EcoreEMap<EObject, EList<FeatureChange>>(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY, EObjectToChangesMapEntryImpl.class, this, ChangePackage.CHANGE_DESCRIPTION__OBJECT_CHANGES);

   Preondition Violations
   Unmatched statement objectChanges=new EcoreEMap<EObject,EList<FeatureChange>>(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY,EObjectToChangesMapEntryImpl.class,this,ChangePackage.CHANGE_DESCRIPTION__OBJECT_CHANGES); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   2

       objectChanges = new EcoreEMap<EObject, EList<FeatureChange>>(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY, EObjectToChangesMapEntryImpl.class, this, ChangePackage.CHANGE_DESCRIPTION__OBJECT_CHANGES);

   2

       super.getPropertyDescriptors(object);

   3

       addFeatureNamePropertyDescriptor(object);

   3 | addFeatureNamePropertyDescriptor(object);

   Preondition Violations
   Unmatched statement addFeatureNamePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   4

       addDataValuePropertyDescriptor(object);

   4 | addDataValuePropertyDescriptor(object);

   Preondition Violations
   Unmatched statement addDataValuePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   5

       addValuePropertyDescriptor(object);

   5 | addValuePropertyDescriptor(object);

   Preondition Violations
   Unmatched statement addValuePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   6

       addFeaturePropertyDescriptor(object);

   6 | addFeaturePropertyDescriptor(object);

   Preondition Violations
   Unmatched statement addFeaturePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   7

       addReferenceValuePropertyDescriptor(object);

   7 | addReferenceValuePropertyDescriptor(object);

   Preondition Violations
   Unmatched statement addReferenceValuePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   3 | return objectChanges;

   Preondition Violations
   Unmatched return objectChanges;

   3

       return objectChanges;

   8

       return itemPropertyDescriptors;

   8 | return itemPropertyDescriptors;

   Preondition Violations
   Unmatched return itemPropertyDescriptors;

   Precondition Violations (10)
   Row | Violation
   --- | ---
   1 | Type java.util.List<org.eclipse.emf.edit.provider.IItemPropertyDescriptor> of variable itemPropertyDescriptors does not match with type org.eclipse.emf.common.util.EMap<org.eclipse.emf.ecore.EObject,org.eclipse.emf.common.util.EList<org.eclipse.emf.ecore.change.FeatureChange>> of variable objectChanges
   2 | Unmatched statement objectChanges=new EcoreEMap<EObject,EList<FeatureChange>>(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY,EObjectToChangesMapEntryImpl.class,this,ChangePackage.CHANGE_DESCRIPTION__OBJECT_CHANGES); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | Unmatched statement addFeatureNamePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   4 | Unmatched statement addDataValuePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   5 | Unmatched statement addValuePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   6 | Unmatched statement addFeaturePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   7 | Unmatched statement addReferenceValuePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   8 | Unmatched return objectChanges;
   9 | Unmatched return itemPropertyDescriptors;
   10 | The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero