173-116-117

if (contents == null) { contents = new ContentsEList<EObject>(); } return contents;
if (defaultURIConverter == null) { defaultURIConverter = new ExtensibleURIConverterImpl(); } return defaultURIConverter;

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

1

    if (contents == null)↵

1

    if (defaultURIConverter == null)↵

2

        {↵

2

        {↵

3

          contents = new ContentsEList<EObject>();↵

3

          defaultURIConverter = new ExtensibleURIConverterImpl();↵

4

        }↵

4

        }↵

5

        return contents;

5

        return defaultURIConverter;

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 declared in the same class
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) | 0.9
   Clone type | Type 2

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

   1

       if (contents == null)

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

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   contents | defaultURIConverter | VARIABLE_NAME_MISMATCH
   org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList | org.eclipse.emf.ecore.resource.URIConverter | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList<org.eclipse.emf.ecore.EObject> of variable contents does not match with type org.eclipse.emf.ecore.resource.URIConverter of variable defaultURIConverter
   - Make classes org.eclipse.emf.ecore.resource.impl.ResourceImpl.ContentsEList and org.eclipse.emf.ecore.resource.URIConverter extend a common superclass

   1

       if (defaultURIConverter == null)

   2 | defaultURIConverter = new ExtensibleURIConverterImpl();

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

   2

       defaultURIConverter = new ExtensibleURIConverterImpl();

   2

       contents = new ContentsEList<EObject>();

   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

   3 | return defaultURIConverter;

   Preondition Violations
   Unmatched return defaultURIConverter;

   3

       return defaultURIConverter;

   3

       return contents;

   3 | return contents;

   Preondition Violations
   Unmatched return contents;

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