if (_myPanel == null) { _myPanel = new UpdatePreferencesPanel(); } return _myPanel;
if (evt == null) { evt = new HtmlViewerPanelListenerEvent(this); } ((IHtmlViewerPanelListener)listeners[i + 1]).currentURLHasChanged(evt);
Clone fragments detected by clone detection tool
File path: /sql12/app/src/net/sourceforge/squirrel_sql/client/preferences/UpdatePreferencesTab.java File path: /sql12/app/src/net/sourceforge/squirrel_sql/client/gui/HtmlViewerPanel.java
Method name: Component getPanelComponent() Method name: void fireURLChanged()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (_myPanel == null)
1
if (evt == null)
2
		{
2
				{
3
			_myPanel = new UpdatePreferencesPanel();
3
					evt = new HtmlViewerPanelListenerEvent(this);
4
		}
4
				}
5
		return _myPanel;
5
				((IHtmlViewerPanelListener)listeners[i + 1]).currentURLHasChanged(evt);
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)0.2
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)
    5
    if (evt == null)
    Differences
    Expression1Expression2Difference
    _myPanelevtVARIABLE_NAME_MISMATCH
    net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanelnet.sourceforge.squirrel_sql.client.gui.HtmlViewerPanelListenerEventVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanel of variable _myPanel does not match with type net.sourceforge.squirrel_sql.client.gui.HtmlViewerPanelListenerEvent of variable evt
    • Make classes net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanel and net.sourceforge.squirrel_sql.client.gui.HtmlViewerPanelListenerEvent extend a common superclass
    5
    if (evt == null)
    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
                                                                                      
                                                                                                
    6
    evt = new HtmlViewerPanelListenerEvent(this);
    Preondition Violations
    Unmatched statement evt=new HtmlViewerPanelListenerEvent(this); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement evt=new HtmlViewerPanelListenerEvent(this); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    6
    evt = new HtmlViewerPanelListenerEvent(this);
    3
    return _myPanel;
    3
    return _myPanel;
    Preondition Violations
    Unmatched return _myPanel;
                                          
                                                                                                                                                        
    7
    ((IHtmlViewerPanelListener)listeners[i + 1]).currentURLHasChanged(evt);
    Precondition Violations (6)
    Row Violation
    1Type net.sourceforge.squirrel_sql.client.preferences.UpdatePreferencesPanel of variable _myPanel does not match with type net.sourceforge.squirrel_sql.client.gui.HtmlViewerPanelListenerEvent of variable evt
    2Unmatched statement _myPanel=new UpdatePreferencesPanel(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement evt=new HtmlViewerPanelListenerEvent(this); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched statement evt=new HtmlViewerPanelListenerEvent(this); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    5Unmatched return _myPanel;
    6The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero