if (instance == null) { instance = new LocalTransfer(); } return instance;
if (packageRegistry == null) { packageRegistry = new EPackageRegistryImpl(EPackage.Registry.INSTANCE); } return packageRegistry;
Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/edit/ui/dnd/LocalTransfer.java File path: /emf-2.4.1/src/org/eclipse/emf/ecore/resource/impl/ResourceSetImpl.java
Method name: LocalTransfer getInstance() Method name: EPackage.Registry getPackageRegistry()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (instance == null)
1
if (packageRegistry == null)
2
    {
2
    {
3
      instance = new LocalTransfer();
3
      packageRegistry = new EPackageRegistryImpl(EPackage.Registry.INSTANCE);
4
    }
4
    }
5
    return instance;
5
    return packageRegistry;
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.1
Clones locationClones are in different classes
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.3
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (instance == null)
    1
    if (instance == null)
    1
    if (packageRegistry == null)
    Differences
    Expression1Expression2Difference
    instancepackageRegistryVARIABLE_NAME_MISMATCH
    org.eclipse.emf.edit.ui.dnd.LocalTransferorg.eclipse.emf.ecore.EPackage.RegistryVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.eclipse.emf.edit.ui.dnd.LocalTransfer of variable instance does not match with type org.eclipse.emf.ecore.EPackage.Registry of variable packageRegistry
    • Make classes org.eclipse.emf.edit.ui.dnd.LocalTransfer and org.eclipse.emf.ecore.EPackage.Registry extend a common superclass
    1
    if (packageRegistry == null)
                                                                                                                                                    
    2
    packageRegistry = new EPackageRegistryImpl(EPackage.Registry.INSTANCE);
    2
    instance = new LocalTransfer();
                                                                    
                                                        
    3
    return packageRegistry;
    Preondition Violations
    Unmatched return packageRegistry;
    3
    return packageRegistry;
    3
    return instance;
    3
    return instance;
    Preondition Violations
    Unmatched return instance;
                                          
    Precondition Violations (3)
    Row Violation
    1Type org.eclipse.emf.edit.ui.dnd.LocalTransfer of variable instance does not match with type org.eclipse.emf.ecore.EPackage.Registry of variable packageRegistry
    2Unmatched return packageRegistry;
    3Unmatched return instance;