if (instance == null) { instance = new LocalTransfer(); } return instance;
if (owners == null) { owners = new UniqueEList<Object>(); addOwners(getCommand()); } return owners;
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/edit/provider/ItemProviderAdapter.java
Method name: LocalTransfer getInstance() Method name: List getOwners()
Number of AST nodes: 3 Number of AST nodes: 4
1
if (instance == null)
1
if (owners == null)
2
    {
2
      {
3
      instance = new LocalTransfer(
3
        owners = new UniqueEList<Object>();
4
);
4
        addOwners(getCommand());
5
    }
5
      }
6
    return instance;
6
      return owners;
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 comparisons7
  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 fragment3
    Time elapsed for statement mapping (ms)0.4
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (instance == null)
    1
    if (instance == null)
    1
    if (owners == null)
    Differences
    Expression1Expression2Difference
    instanceownersVARIABLE_NAME_MISMATCH
    org.eclipse.emf.edit.ui.dnd.LocalTransferjava.util.ListVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.eclipse.emf.edit.ui.dnd.LocalTransfer of variable instance does not match with type java.util.List<java.lang.Object> of variable owners
    • Make classes org.eclipse.emf.edit.ui.dnd.LocalTransfer and java.util.List extend a common superclass
    1
    if (owners == null)
                                                                            
    2
    owners = new UniqueEList<Object>();
    2
    instance = new LocalTransfer();
                                                                    
                                                          
    3
    addOwners(getCommand());
    3
    return instance;
    3
    return instance;
    Preondition Violations
    Unmatched return instance;
                                          
                                      
    4
    return owners;
    Preondition Violations
    Unmatched return owners;
    4
    return owners;
    Precondition Violations (3)
    Row Violation
    1Type org.eclipse.emf.edit.ui.dnd.LocalTransfer of variable instance does not match with type java.util.List<java.lang.Object> of variable owners
    2Unmatched return instance;
    3Unmatched return owners;