AxisSpace s1 = new AxisSpace(); AxisSpace s2 = null; try { s2 = (AxisSpace) s1.clone(); } catch (CloneNotSupportedException e) { System.err.println("Failed to clone."); } assertTrue(s1 != s2); assertTrue(s1.getClass() == s2.getClass()); assertTrue(s1.equals(s2));
PinNeedle n1 = new PinNeedle(); PinNeedle n2 = null; try { n2 = (PinNeedle) n1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); System.err.println("Failed to clone."); } assertTrue(n1 != n2); assertTrue(n1.getClass() == n2.getClass()); assertTrue(n1.equals(n2));
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/chart/axis/junit/AxisSpaceTests.java File path: /jfreechart-1.0.10/tests/org/jfree/chart/needle/junit/PinNeedleTests.java
Method name: void testCloning() Method name: void testCloning()
Number of AST nodes: 7 Number of AST nodes: 7
1
AxisSpace s1 = new AxisSpace();
1
PinNeedle n1 = new PinNeedle();
2
        AxisSpace s2 = null;
2
        PinNeedle n2 = null;
3
        try {
3
        try {
4
            s2 = (AxisSpace) s1.clone();
4
            n2 = (PinNeedle) n1.clone();
5
        }
5
        }
6
        catch (CloneNotSupportedException e) {
6
        catch (CloneNotSupportedException e) {
7
            e.printStackTrace();
7
            System.err.println("Failed to clone.");
8
            System.err.println("Failed to clone.");
8
        }
9
        }
9
        assertTrue(s1 != s2);
10
        assertTrue(n1 != n2);
10
        assertTrue(s1.getClass() == s2.getClass());
11
        assertTrue(n1.getClass() == n2.getClass());
11
        assertTrue(s1.equals(s2));
12
        assertTrue(n1.equals(n2));
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)3.0
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
                                                                    
    1
    PinNeedle n1 = new PinNeedle();
    1
    AxisSpace s1 = new AxisSpace();
    1
    AxisSpace s1 = new AxisSpace();
    Preondition Violations
    Unmatched statement AxisSpace s1=new AxisSpace(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                    
                                              
    2
    PinNeedle n2 = null;
    2
    AxisSpace s2 = null;
                                              
                
    3
    try
                                                            
    4
    n2 = (PinNeedle)n1.clone();
    3
    try
                
    4
    s2 = (AxisSpace)s1.clone();
                                                            
    5
    assertTrue(s1 != s2);
    5
    assertTrue(s1 != s2);
    5
    assertTrue(n1 != n2);
    Differences
    Expression1Expression2Difference
    s1n1VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.AxisSpaceorg.jfree.chart.needle.PinNeedleVARIABLE_TYPE_MISMATCH
    s2n2VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.AxisSpaceorg.jfree.chart.needle.PinNeedleVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.AxisSpace of variable s1 does not match with type org.jfree.chart.needle.PinNeedle of variable n1
    • Make classes org.jfree.chart.axis.AxisSpace and org.jfree.chart.needle.PinNeedle extend a common superclass
    Type org.jfree.chart.axis.AxisSpace of variable s2 does not match with type org.jfree.chart.needle.PinNeedle of variable n2
    • Make classes org.jfree.chart.axis.AxisSpace and org.jfree.chart.needle.PinNeedle extend a common superclass
    5
    assertTrue(n1 != n2);
    6
    assertTrue(s1.getClass() == s2.getClass());
    6
    assertTrue(s1.getClass() == s2.getClass());
    6
    assertTrue(n1.getClass() == n2.getClass());
    Differences
    Expression1Expression2Difference
    s1n1VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.AxisSpaceorg.jfree.chart.needle.PinNeedleVARIABLE_TYPE_MISMATCH
    s2n2VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.AxisSpaceorg.jfree.chart.needle.PinNeedleVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.AxisSpace of variable s1 does not match with type org.jfree.chart.needle.PinNeedle of variable n1
    • Make classes org.jfree.chart.axis.AxisSpace and org.jfree.chart.needle.PinNeedle extend a common superclass
    Type org.jfree.chart.axis.AxisSpace of variable s2 does not match with type org.jfree.chart.needle.PinNeedle of variable n2
    • Make classes org.jfree.chart.axis.AxisSpace and org.jfree.chart.needle.PinNeedle extend a common superclass
    6
    assertTrue(n1.getClass() == n2.getClass());
    7
    assertTrue(s1.equals(s2));
    7
    assertTrue(s1.equals(s2));
    7
    assertTrue(n1.equals(n2));
    Differences
    Expression1Expression2Difference
    s2n2VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.AxisSpaceorg.jfree.chart.needle.PinNeedleVARIABLE_TYPE_MISMATCH
    s1n1VARIABLE_NAME_MISMATCH
    org.jfree.chart.axis.AxisSpaceorg.jfree.chart.needle.PinNeedleVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.AxisSpace of variable s2 does not match with type org.jfree.chart.needle.PinNeedle of variable n2
    • Make classes org.jfree.chart.axis.AxisSpace and org.jfree.chart.needle.PinNeedle extend a common superclass
    Type org.jfree.chart.axis.AxisSpace of variable s1 does not match with type org.jfree.chart.needle.PinNeedle of variable n1
    • Make classes org.jfree.chart.axis.AxisSpace and org.jfree.chart.needle.PinNeedle extend a common superclass
    7
    assertTrue(n1.equals(n2));
    Precondition Violations (7)
    Row Violation
    1Unmatched statement AxisSpace s1=new AxisSpace(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Type org.jfree.chart.axis.AxisSpace of variable s1 does not match with type org.jfree.chart.needle.PinNeedle of variable n1
    3Type org.jfree.chart.axis.AxisSpace of variable s2 does not match with type org.jfree.chart.needle.PinNeedle of variable n2
    4Type org.jfree.chart.axis.AxisSpace of variable s1 does not match with type org.jfree.chart.needle.PinNeedle of variable n1
    5Type org.jfree.chart.axis.AxisSpace of variable s2 does not match with type org.jfree.chart.needle.PinNeedle of variable n2
    6Type org.jfree.chart.axis.AxisSpace of variable s2 does not match with type org.jfree.chart.needle.PinNeedle of variable n2
    7Type org.jfree.chart.axis.AxisSpace of variable s1 does not match with type org.jfree.chart.needle.PinNeedle of variable n1