173-147-176

if (enumerationLiterals == null) { setEnumerationFacet(basicGetEnumerationFacet(eDataType)); } return enumerationLiterals;
if (childrenFeatures == null) { super.getChildrenFeatures(object); childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECT_CHANGES); childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECTS_TO_ATTACH); childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__RESOURCE_CHANGES); } return childrenFeatures;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/ecore/util/BasicExtendedMetaData.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/change/provider/ChangeDescriptionItemProvider.java
Method name: `List getEnumerationFacet()` |  | Method name: `Collection getChildrenFeatures(Object)`
Number of AST nodes: 3 |  | Number of AST nodes: 6

1

    if (enumerationLiterals == null)↵

1

    if (childrenFeatures == null)↵

2

          {↵

2

        {↵

3

            setEnumerationFacet(basicGetEnumerationFacet(eDataType)↵

3

          super.getChildrenFeatures(object);↵

4

          childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECT_CHANGES);↵

5

          childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECTS_TO_ATTACH);↵

4

    );↵

6

          childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__RESOURCE_CHANGES);↵

5

          }↵

7

        ↵

6

      ↵

8

    }↵

7

        return enumerationLiterals;

9

        return childrenFeatures;

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 | 11

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 2
   Number of unmapped statements in the second code fragment | 5
   Time elapsed for statement mapping (ms) | 61.7
   Clone type | Type 3

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

   1

       if (enumerationLiterals == null)

   1 | if (enumerationLiterals == null)
   1 | if (childrenFeatures == null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   enumerationLiterals | childrenFeatures | VARIABLE_NAME_MISMATCH
   java.util.List | java.util.List | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.util.List<java.lang.String> of variable enumerationLiterals does not match with type java.util.List<org.eclipse.emf.ecore.EStructuralFeature> of variable childrenFeatures
   - Make classes java.util.List and java.util.List extend a common superclass

   1

       if (childrenFeatures == null)

   2

       super.getChildrenFeatures(object);

   2

       setEnumerationFacet(basicGetEnumerationFacet(eDataType));

   2 | setEnumerationFacet(basicGetEnumerationFacet(eDataType));

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

   3 | childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECT_CHANGES);

   Preondition Violations
   Unmatched statement childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECT_CHANGES); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   3

       childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECT_CHANGES);

   4 | childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECTS_TO_ATTACH);

   Preondition Violations
   Unmatched statement childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECTS_TO_ATTACH); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   4

       childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECTS_TO_ATTACH);

   5 | childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__RESOURCE_CHANGES);

   Preondition Violations
   Unmatched statement childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__RESOURCE_CHANGES); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   5

       childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__RESOURCE_CHANGES);

   3

       return enumerationLiterals;

   3 | return enumerationLiterals;

   Preondition Violations
   Unmatched return enumerationLiterals;

   6 | return childrenFeatures;

   Preondition Violations
   Unmatched return childrenFeatures;

   6

       return childrenFeatures;

   Precondition Violations (8)
   Row | Violation
   --- | ---
   1 | Type java.util.List<java.lang.String> of variable enumerationLiterals does not match with type java.util.List<org.eclipse.emf.ecore.EStructuralFeature> of variable childrenFeatures
   2 | Unmatched statement setEnumerationFacet(basicGetEnumerationFacet(eDataType)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | Unmatched statement childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECT_CHANGES); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   4 | Unmatched statement childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__OBJECTS_TO_ATTACH); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   5 | Unmatched statement childrenFeatures.add(ChangePackage.Literals.CHANGE_DESCRIPTION__RESOURCE_CHANGES); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   6 | Unmatched return enumerationLiterals;
   7 | Unmatched return childrenFeatures;
   8 | The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero