TickUnits t1 = (TickUnits) NumberAxis.createIntegerTickUnits(); TickUnits t2 = null; try { t2 = (TickUnits) t1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(t1 != t2); assertTrue(t1.getClass() == t2.getClass()); assertTrue(t1.equals(t2));
DefaultDrawingSupplier r1 = new DefaultDrawingSupplier(); DefaultDrawingSupplier r2 = null; try { r2 = (DefaultDrawingSupplier) r1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); System.err.println("Failed to clone."); } assertTrue(r1 != r2); assertTrue(r1.getClass() == r2.getClass()); assertTrue(r1.equals(r2));
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/chart/axis/junit/TickUnitsTests.java File path: /jfreechart-1.0.10/tests/org/jfree/chart/plot/junit/DefaultDrawingSupplierTests.java
Method name: void testCloning() Method name: void testCloning()
Number of AST nodes: 7 Number of AST nodes: 7
1
TickUnits t1 = (TickUnits) NumberAxis.createIntegerTickUnits();
2
        TickUnits t
1
DefaultDrawingSupplier r1 = new DefaultDrawingSupplier();
3
2 = null;
2
        DefaultDrawingSupplier r2 = null;
4
        try {
3
        try {
5
            t2 = (TickUnits) t1.clone();
4
            r2 = (DefaultDrawingSupplier) r1.clone();
6
        }
5
        }
7
        catch (CloneNotSupportedException e) {
6
        catch (CloneNotSupportedException e) {
8
            e.printStackTrace();
7
            e.printStackTrace();
8
            System.err.println("Failed to clone.");
9
        }
9
        }
10
        assertTrue(t1 != t2);
10
        assertTrue(r1 != r2);
11
        assertTrue(t1.getClass() == t2.getClass());
11
        assertTrue(r1.getClass() == r2.getClass());
12
        assertTrue(t1.equals(t2));
12
        assertTrue(r1.equals(r2));
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 having the same super class
Number of node comparisons26
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment4
    Number of unmapped statements in the second code fragment4
    Time elapsed for statement mapping (ms)3.2
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
                                                                                                                        
    1
    DefaultDrawingSupplier r1 = new DefaultDrawingSupplier();
    Preondition Violations
    Unmatched statement DefaultDrawingSupplier r1=new DefaultDrawingSupplier(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    1
    DefaultDrawingSupplier r1 = new DefaultDrawingSupplier();
    1
    TickUnits t1 = (TickUnits)NumberAxis.createIntegerTickUnits();
                                                                                                                                  
                                                                        
    2
    DefaultDrawingSupplier r2 = null;
    2
    TickUnits t2 = null;
                                              
                
    3
    try
                                                                                      
    4
    r2 = (DefaultDrawingSupplier)r1.clone();
    3
    try
                
    4
    t2 = (TickUnits)t1.clone();
                                                            
    5
    assertTrue(t1 != t2);
    5
    assertTrue(t1 != t2);
    5
    assertTrue(r1 != r2);
    Differences
    Expression1Expression2Difference
    t1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.TickUnitsorg.jfree.chart.plot.DefaultDrawingSupplierVARIABLE_TYPE_MISMATCH
    t2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.TickUnitsorg.jfree.chart.plot.DefaultDrawingSupplierVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.TickUnits of variable t1 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r1
    • Make classes org.jfree.chart.axis.TickUnits and org.jfree.chart.plot.DefaultDrawingSupplier extend a common superclass
    Type org.jfree.chart.axis.TickUnits of variable t2 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r2
    • Make classes org.jfree.chart.axis.TickUnits and org.jfree.chart.plot.DefaultDrawingSupplier extend a common superclass
    5
    assertTrue(r1 != r2);
    6
    assertTrue(t1.getClass() == t2.getClass());
    6
    assertTrue(t1.getClass() == t2.getClass());
    6
    assertTrue(r1.getClass() == r2.getClass());
    Differences
    Expression1Expression2Difference
    t1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.TickUnitsorg.jfree.chart.plot.DefaultDrawingSupplierVARIABLE_TYPE_MISMATCH
    t2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.TickUnitsorg.jfree.chart.plot.DefaultDrawingSupplierVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.TickUnits of variable t1 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r1
    • Make classes org.jfree.chart.axis.TickUnits and org.jfree.chart.plot.DefaultDrawingSupplier extend a common superclass
    Type org.jfree.chart.axis.TickUnits of variable t2 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r2
    • Make classes org.jfree.chart.axis.TickUnits and org.jfree.chart.plot.DefaultDrawingSupplier extend a common superclass
    6
    assertTrue(r1.getClass() == r2.getClass());
    7
    assertTrue(t1.equals(t2));
    7
    assertTrue(t1.equals(t2));
    7
    assertTrue(r1.equals(r2));
    Differences
    Expression1Expression2Difference
    t2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.TickUnitsorg.jfree.chart.plot.DefaultDrawingSupplierVARIABLE_TYPE_MISMATCH
    t1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.TickUnitsorg.jfree.chart.plot.DefaultDrawingSupplierVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.TickUnits of variable t2 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r2
    • Make classes org.jfree.chart.axis.TickUnits and org.jfree.chart.plot.DefaultDrawingSupplier extend a common superclass
    Type org.jfree.chart.axis.TickUnits of variable t1 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r1
    • Make classes org.jfree.chart.axis.TickUnits and org.jfree.chart.plot.DefaultDrawingSupplier extend a common superclass
    7
    assertTrue(r1.equals(r2));
    Precondition Violations (7)
    Row Violation
    1Unmatched statement DefaultDrawingSupplier r1=new DefaultDrawingSupplier(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Type org.jfree.chart.axis.TickUnits of variable t1 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r1
    3Type org.jfree.chart.axis.TickUnits of variable t2 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r2
    4Type org.jfree.chart.axis.TickUnits of variable t1 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r1
    5Type org.jfree.chart.axis.TickUnits of variable t2 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r2
    6Type org.jfree.chart.axis.TickUnits of variable t2 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r2
    7Type org.jfree.chart.axis.TickUnits of variable t1 does not match with type org.jfree.chart.plot.DefaultDrawingSupplier of variable r1