if (children == null) { children = new EObjectContainmentWithInverseEList<TreeNode>(TreeNode.class, this, TreePackage.TREE_NODE__CHILDREN, TreePackage.TREE_NODE__PARENT); } return children;
if (registry == null) { registry = new EPackageRegistryImpl(); } return new BasicExtendedMetaData(registry);
Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/edit/tree/impl/TreeNodeImpl.java File path: /emf-2.4.1/src/org/eclipse/emf/ecore/xmi/util/XMLProcessor.java
Method name: EList getChildren() Method name: ExtendedMetaData createExtendedMetaData()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (children == null)
1
if (registry == null)
2
    {
2
    {
3
      children = new EObjectContainmentWithInverseEList<TreeNode>(TreeNode.class, this, TreePackage.TREE_NODE__CHILDREN, TreePackage.TREE_NODE__PARENT);
3
      
4
    }
5
    return children
4
registry = new EPackageRegistryImpl();
5
    }
6
;
6
    return new BasicExtendedMetaData(registry);
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 (children == null)
    1
    if (children == null)
    1
    if (registry == null)
    Differences
    Expression1Expression2Difference
    childrenregistryVARIABLE_NAME_MISMATCH
    org.eclipse.emf.common.util.EListorg.eclipse.emf.ecore.EPackage.RegistryVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.eclipse.emf.common.util.EList<org.eclipse.emf.edit.tree.TreeNode> of variable children does not match with type org.eclipse.emf.ecore.EPackage.Registry of variable registry
    • Make classes org.eclipse.emf.common.util.EList and org.eclipse.emf.ecore.EPackage.Registry extend a common superclass
    1
    if (registry == null)
                                                                                  
    2
    registry = new EPackageRegistryImpl();
    2
    children = new EObjectContainmentWithInverseEList<TreeNode>(TreeNode.class, this, TreePackage.TREE_NODE__CHILDREN, TreePackage.TREE_NODE__PARENT);
                                                                                                                                                                                                                                                                                                    
                                                                                                
    3
    return new BasicExtendedMetaData(registry);
    Preondition Violations
    Unmatched return new BasicExtendedMetaData(registry);
    3
    return new BasicExtendedMetaData(registry);
    3
    return children;
    3
    return children;
    Preondition Violations
    Unmatched return children;
                                          
    Precondition Violations (3)
    Row Violation
    1Type org.eclipse.emf.common.util.EList<org.eclipse.emf.edit.tree.TreeNode> of variable children does not match with type org.eclipse.emf.ecore.EPackage.Registry of variable registry
    2Unmatched return new BasicExtendedMetaData(registry);
    3Unmatched return children;