173-26-121

if (childrenFeatures == null) { super.getChildrenFeatures(object); childrenFeatures.add(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY__VALUE); } return childrenFeatures;
if (resources == null) { resources = new ResourcesEList<Resource>(); } return resources;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/ecore/change/provider/EObjectToChangesMapEntryItemProvider.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/resource/impl/ResourceSetImpl.java
Method name: `Collection getChildrenFeatures(Object)` |  | Method name: `EList getResources()`
Number of AST nodes: 4 |  | Number of AST nodes: 3

1

    if (childrenFeatures == null)↵

1

    if (resources == null)↵

2

        {↵

2

        {↵

3

          super.getChildrenFeatures(object);↵

3

          resources↵

4

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

4

     = new ResourcesEList<Resource>();↵

5

        }↵

5

        }↵

6

        return childrenFeatures;

6

        return resources;

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 | 7

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 2
   Number of unmapped statements in the first code fragment | 2
   Number of unmapped statements in the second code fragment | 1
   Time elapsed for statement mapping (ms) | 65.2
   Clone type | Type 3

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

   1

       if (childrenFeatures == null)

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

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   childrenFeatures | resources | VARIABLE_NAME_MISMATCH
   java.util.List | org.eclipse.emf.common.util.EList | SUBCLASS_TYPE_MISMATCH

   1

       if (resources == null)

   2 | resources = new ResourcesEList<Resource>();

   Preondition Violations
   Unmatched statement resources=new ResourcesEList<Resource>(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted

   2

       resources = new ResourcesEList<Resource>();

   2

       super.getChildrenFeatures(object);

   3

       childrenFeatures.add(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY__VALUE);

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

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

   4

       return childrenFeatures;

   4 | return childrenFeatures;
   3 | return resources;

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   childrenFeatures | resources | VARIABLE_NAME_MISMATCH
   java.util.List | org.eclipse.emf.common.util.EList | SUBCLASS_TYPE_MISMATCH

   3

       return resources;

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Unmatched statement resources=new ResourcesEList<Resource>(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
   2 | Unmatched statement childrenFeatures.add(ChangePackage.Literals.EOBJECT_TO_CHANGES_MAP_ENTRY__VALUE); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | The refactoring of the clones is infeasible, because classes org.eclipse.emf.ecore.change.provider.EObjectToChangesMapEntryItemProvider and org.eclipse.emf.ecore.resource.impl.ResourceSetImpl do not have a common superclass