if (_myPanel == null) { _myPanel = new UpdatePreferencesPanel(); } return _myPanel;
if (_propChgNotifier == null) { _propChgNotifier = new PropertyChangeSupport(this); } return _propChgNotifier;
Clone fragments detected by clone detection tool
File path: /sql12/app/src/net/sourceforge/squirrel_sql/client/preferences/UpdatePreferencesTab.java File path: /sql12/plugins/favs/src/net/sourceforge/squirrel_sql/plugins/favs/Folder.java
Method name: Component getPanelComponent() Method name: PropertyChangeSupport getPropertyChangeNotifier()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (_myPanel == null)
1
if (_propChgNotifier == null)
2
		{
2
 {
3
			_myPanel = new UpdatePreferencesPanel();
3
			_propChgNotifier = new PropertyChangeSupport(this);
4
		}
4
		}
5
		return _myPanel;
5
		return _propChgNotifier;
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)0.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (_myPanel == null)
    1
    if (_myPanel == null)
    1
    if (_propChgNotifier == null)
    Differences
    Expression1Expression2Difference
    _myPanel_propChgNotifierVARIABLE_NAME_MISMATCH
    net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPaneljava.beans.PropertyChangeSupportVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanel of variable _myPanel does not match with type java.beans.PropertyChangeSupport of variable _propChgNotifier
    • Make classes net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanel and java.beans.PropertyChangeSupport extend a common superclass
    1
    if (_propChgNotifier == null)
                                                                                                            
    2
    _propChgNotifier = new PropertyChangeSupport(this);
    Preondition Violations
    Unmatched statement _propChgNotifier=new PropertyChangeSupport(this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2
    _propChgNotifier = new PropertyChangeSupport(this);
    2
    _myPanel = new UpdatePreferencesPanel();
    2
    _myPanel = new UpdatePreferencesPanel();
    Preondition Violations
    Unmatched statement _myPanel=new UpdatePreferencesPanel(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                      
                                                          
    3
    return _propChgNotifier;
    Preondition Violations
    Unmatched return _propChgNotifier;
    3
    return _propChgNotifier;
    3
    return _myPanel;
    3
    return _myPanel;
    Preondition Violations
    Unmatched return _myPanel;
                                          
    Precondition Violations (6)
    Row Violation
    1Type net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanel of variable _myPanel does not match with type java.beans.PropertyChangeSupport of variable _propChgNotifier
    2Unmatched statement _propChgNotifier=new PropertyChangeSupport(this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement _myPanel=new UpdatePreferencesPanel(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched return _propChgNotifier;
    5Unmatched return _myPanel;
    6The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero