173-31-201

if (childrenFeatures == null) { super.getChildrenFeatures(object); childrenFeatures.add(EcorePackage.Literals.EMODEL_ELEMENT__EANNOTATIONS); } return childrenFeatures;
if (owners == null) { owners = new UniqueEList<Object>(); addOwners(getCommand()); } return owners;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/ecore/provider/EModelElementItemProvider.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/edit/provider/ItemProviderAdapter.java
Method name: `Collection getChildrenFeatures(Object)` |  | Method name: `List `
Number of AST nodes: 4 |  | Number of AST nodes: 4

1

    if (childrenFeatures == null)↵

1

    if (owners == null)↵

2

        {↵

2

          {↵

3

          super.getChildrenFeatures(object);↵

3

          ↵

4

          childrenFeatures.add(EcorePackage.Literals.EMODEL_ELEMENT__EANNOTATIONS↵

4

      owners = new UniqueEList<Object>();↵

5

    );↵

5

            addOwners(getCommand());↵

6

        }↵

6

        ↵

7

      }↵

7

        return childrenFeatures;

8

          return owners;

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 | 10

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 3
   Number of unmapped statements in the second code fragment | 3
   Time elapsed for statement mapping (ms) | 1.5
   Clone type | Type 2

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

   1

       if (childrenFeatures == null)

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

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

   Preondition Violations

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

   1

       if (owners == null)

   2 | owners = new UniqueEList<Object>();

   Preondition Violations
   Unmatched statement owners=new UniqueEList<Object>(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   2

       owners = new UniqueEList<Object>();

   2

       super.getChildrenFeatures(object);

   3 | addOwners(getCommand());

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

   3

       addOwners(getCommand());

   3

       childrenFeatures.add(EcorePackage.Literals.EMODEL_ELEMENT__EANNOTATIONS);

   3 | childrenFeatures.add(EcorePackage.Literals.EMODEL_ELEMENT__EANNOTATIONS);

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

   4 | return owners;

   Preondition Violations
   Unmatched return owners;

   4

       return owners;

   4

       return childrenFeatures;

   4 | return childrenFeatures;

   Preondition Violations
   Unmatched return childrenFeatures;

   Precondition Violations (7)
   Row | Violation
   --- | ---
   1 | Type java.util.List<org.eclipse.emf.ecore.EStructuralFeature> of variable childrenFeatures does not match with type java.util.List<java.lang.Object> of variable owners
   2 | Unmatched statement owners=new UniqueEList<Object>(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | Unmatched statement addOwners(getCommand()); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   4 | Unmatched statement childrenFeatures.add(EcorePackage.Literals.EMODEL_ELEMENT__EANNOTATIONS); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   5 | Unmatched return owners;
   6 | Unmatched return childrenFeatures;
   7 | The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero