if (router == null) { router = new ActionRouter(); router.populateCommandMap(); } return router;
if (whitespace == null) { whitespace = new JCheckBox(JMeterUtils.getResString("xml_whitespace_button")); //$NON-NLS-1$ } return whitespace;
Clone fragments detected by clone detection tool
File path: /jakarta-jmeter-2.3.2/src/org/apache/jmeter/gui/action/ActionRouter.java File path: /jakarta-jmeter-2.3.2/src/org/apache/jmeter/assertions/gui/XMLConfPanel.java
Method name: ActionRouter getInstance() Method name: JCheckBox getWhitespace()
Number of AST nodes: 4 Number of AST nodes: 3
1
if (router == null) {
1
if (whitespace == null) {
2
			router = new ActionRouter();
2
			
3
			router.populateCommandMap();
3
whitespace = new JCheckBox(JMeterUtils.getResString("xml_whitespace_button")); //$NON-NLS-1$
4
		}
4
		}
5
		return router;
5
		return whitespace;
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 comparisons7
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)1.0
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (router == null)
    1
    if (router == null)
    1
    if (whitespace == null)
    Differences
    Expression1Expression2Difference
    routerwhitespaceVARIABLE_NAME_MISMATCH
    org.apache.jmeter.gui.action.ActionRouterjavax.swing.JCheckBoxVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.jmeter.gui.action.ActionRouter of variable router does not match with type javax.swing.JCheckBox of variable whitespace
    • Make classes org.apache.jmeter.gui.action.ActionRouter and javax.swing.JCheckBox extend a common superclass
    1
    if (whitespace == null)
                                                                                                                                                                  
    2
    whitespace = new JCheckBox(JMeterUtils.getResString("xml_whitespace_button"));
    Preondition Violations
    Unmatched statement whitespace=new JCheckBox(JMeterUtils.getResString("xml_whitespace_button")); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2
    whitespace = new JCheckBox(JMeterUtils.getResString("xml_whitespace_button"));
    2
    router = new ActionRouter();
    2
    router = new ActionRouter();
    Preondition Violations
    Unmatched statement router=new ActionRouter(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                              
    3
    router.populateCommandMap();
    3
    router.populateCommandMap();
    Preondition Violations
    Unmatched statement router.populateCommandMap(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    Unmatched statement router.populateCommandMap(); 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
                                                                  
                                              
    3
    return whitespace;
    Preondition Violations
    Unmatched return whitespace;
    3
    return whitespace;
    4
    return router;
    4
    return router;
    Preondition Violations
    Unmatched return router;
                                      
    Precondition Violations (8)
    Row Violation
    1Type org.apache.jmeter.gui.action.ActionRouter of variable router does not match with type javax.swing.JCheckBox of variable whitespace
    2Unmatched statement whitespace=new JCheckBox(JMeterUtils.getResString("xml_whitespace_button")); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement router=new ActionRouter(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched statement router.populateCommandMap(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    5Unmatched statement router.populateCommandMap(); 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
    6Unmatched return whitespace;
    7Unmatched return router;
    8The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero