173-28-128

if (childrenFeatures == null) { super.getChildrenFeatures(object); childrenFeatures.add(TreePackage.eINSTANCE.getTreeNode_Children()); } return childrenFeatures;
if (eParameterItemProvider == null) { eParameterItemProvider = new EParameterItemProvider(this); } return eParameterItemProvider;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/edit/tree/provider/TreeNodeItemProvider.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/provider/EcoreItemProviderAdapterFactory.java
Method name: `Collection getChildrenFeatures(Object)` |  | Method name: `Adapter createEParameterAdapter()`
Number of AST nodes: 4 |  | Number of AST nodes: 3

1

    if (childrenFeatures == null)↵

1

    if (↵

2

        {↵

3

          super.getChildrenFeatures(object);↵

4

          childrenFeatures.add(TreePackage.eINSTANCE.getTreeNode_Children()↵

2

    eParameterItemProvider == null)↵

3

        {↵

5

    );↵

4

          eParameterItemProvider = new EParameterItemProvider(this);↵

6

        }↵

5

        }↵

7

        return childrenFeatures;

6

        return eParameterItemProvider;

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) | 0.3
Clones location | Clones are in different classes
Number of node comparisons | 7

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 | 2
   Time elapsed for statement mapping (ms) | 64.4
   Clone type | Type 3

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

   1

       if (childrenFeatures == null)

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

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   childrenFeatures | eParameterItemProvider | VARIABLE_NAME_MISMATCH
   java.util.List | org.eclipse.emf.ecore.provider.EParameterItemProvider | VARIABLE_TYPE_MISMATCH

   Preondition Violations

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

   1

       if (eParameterItemProvider == null)

   2 | eParameterItemProvider = new EParameterItemProvider(this);

   Preondition Violations
   Unmatched statement eParameterItemProvider=new EParameterItemProvider(this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   2

       eParameterItemProvider = new EParameterItemProvider(this);

   2

       super.getChildrenFeatures(object);

   3

       childrenFeatures.add(TreePackage.eINSTANCE.getTreeNode_Children());

   3 | childrenFeatures.add(TreePackage.eINSTANCE.getTreeNode_Children());

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

   3 | return eParameterItemProvider;

   Preondition Violations
   Unmatched return eParameterItemProvider;

   3

       return eParameterItemProvider;

   4

       return childrenFeatures;

   4 | return childrenFeatures;

   Preondition Violations
   Unmatched return childrenFeatures;

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