173-180-183

if (changeNotifier == null) { changeNotifier = new ChangeNotifier(); } changeNotifier.addListener(listener);
if (stringBuffer == null) { stringBuffer = new StringBuffer(); } stringBuffer.append(text, start, length);

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/edit/provider/ItemProviderDecorator.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/xml/type/util/XMLTypeResourceImpl.java
Method name: `void addListener(INotifyChangedListener)` |  | Method name: `void characters(char[], int, int)`
Number of AST nodes: 3 |  | Number of AST nodes: 3

1

    if (changeNotifier == null)↵

1

    if (stringBuffer == null)↵

2

        {↵

2

        ↵

3

          changeNotifier = new ChangeNotifi↵

3

      {↵

4

    er();↵

4

            stringBuffer = new StringBuffer();↵

5

        }↵

5

          }↵

6

        changeNotifier.addListener(listener);

6

          stringBuffer.append(text, start, length);

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) | 0.1
Clones location | Clones are in different classes
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) | 0.3
   Clone type | Type 2

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

   1

       if (changeNotifier == null)

   1 | if (changeNotifier == null)
   1 | if (stringBuffer == null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   changeNotifier | stringBuffer | VARIABLE_NAME_MISMATCH
   org.eclipse.emf.edit.provider.IChangeNotifier | java.lang.StringBuffer | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type org.eclipse.emf.edit.provider.IChangeNotifier of variable changeNotifier does not match with type java.lang.StringBuffer of variable stringBuffer
   - Make classes org.eclipse.emf.edit.provider.IChangeNotifier and java.lang.StringBuffer extend a common superclass

   1

       if (stringBuffer == null)

   2

       stringBuffer = new StringBuffer();

   2

       changeNotifier = new ChangeNotifier();

   3

       stringBuffer.append(text, start, length);

   3

       changeNotifier.addListener(listener);

   Precondition Violations (1)
   Row | Violation
   --- | ---
   1 | Type org.eclipse.emf.edit.provider.IChangeNotifier of variable changeNotifier does not match with type java.lang.StringBuffer of variable stringBuffer