173-111-116

if (propertyDescriptors == null) { propertyDescriptors = Collections.<IItemPropertyDescriptor>singletonList(new WrapperItemPropertyDescriptor(resourceLocator, feature)); } return propertyDescriptors;
if (contents == null) { contents = new ContentsEList<EObject>(); } return contents;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/edit/provider/AttributeValueWrapperItemProvider.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/resource/impl/ResourceImpl.java
Method name: `List getPropertyDescriptors(Object)` |  | Method name: `EList getContents()`
Number of AST nodes: 3 |  | Number of AST nodes: 3

1

    if (propertyDescriptors == null)↵

1

    if (contents == null)↵

2

        {↵

2

        {↵

3

          propertyDescriptors = Collections.<IItemPropertyDescriptor>singletonList(new WrapperItemPropertyDescriptor(resourceLocator, feature));↵

3

          contents = new ContentsEList<EObject>();↵

4

        }↵

4

        }↵

5

        return propertyDescriptors;

5

        return contents;

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) | 0.4
Clones location | Clones are in different classes
Number of node comparisons | 5

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 | 2
   Time elapsed for statement mapping (ms) | 46.7
   Clone type | Type 2

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

   1

       if (propertyDescriptors == null)

   1 | if (propertyDescriptors == null)
   1 | if (contents == null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   propertyDescriptors | contents | VARIABLE_NAME_MISMATCH
   java.util.List | org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.util.List<org.eclipse.emf.edit.provider.IItemPropertyDescriptor> of variable propertyDescriptors does not match with type org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList<org.eclipse.emf.ecore.EObject> of variable contents
   - Make classes java.util.List and org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList extend a common superclass

   1

       if (contents == null)

   2 | contents = new ContentsEList<EObject>();

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

   2

       contents = new ContentsEList<EObject>();

   2

       propertyDescriptors = Collections.<IItemPropertyDescriptor>singletonList(new WrapperItemPropertyDescriptor(resourceLocator, feature));

   2 | propertyDescriptors = Collections.<IItemPropertyDescriptor>singletonList(new WrapperItemPropertyDescriptor(resourceLocator, feature));

   Preondition Violations
   Unmatched statement propertyDescriptors=Collections.<IItemPropertyDescriptor>singletonList(new WrapperItemPropertyDescriptor(resourceLocator,feature)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   3 | return contents;

   Preondition Violations
   Unmatched return contents;

   3

       return contents;

   3

       return propertyDescriptors;

   3 | return propertyDescriptors;

   Preondition Violations
   Unmatched return propertyDescriptors;

   Precondition Violations (6)
   Row | Violation
   --- | ---
   1 | Type java.util.List<org.eclipse.emf.edit.provider.IItemPropertyDescriptor> of variable propertyDescriptors does not match with type org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList<org.eclipse.emf.ecore.EObject> of variable contents
   2 | Unmatched statement contents=new ContentsEList<EObject>(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | Unmatched statement propertyDescriptors=Collections.<IItemPropertyDescriptor>singletonList(new WrapperItemPropertyDescriptor(resourceLocator,feature)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   4 | Unmatched return contents;
   5 | Unmatched return propertyDescriptors;
   6 | The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero