StandardPieSectionLabelGenerator generator = new StandardPieSectionLabelGenerator(); PiePlot p1 = new PiePlot(); p1.setLegendLabelToolTipGenerator(generator); PiePlot p2 = null; try { p2 = (PiePlot) p1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(p1 != p2); assertTrue(p1.getClass() == p2.getClass()); assertTrue(p1.equals(p2)); // change the generator and make sure it only affects p1 generator.getNumberFormat().setMinimumFractionDigits(2); assertFalse(p1.equals(p2));
LevelRenderer r1 = new LevelRenderer(); r1.setItemMargin(0.123); r1.setMaximumItemWidth(0.234); LevelRenderer r2 = null; try { r2 = (LevelRenderer) r1.clone(); } catch (CloneNotSupportedException e) { System.err.println("Failed to clone."); } assertTrue(r1 != r2); assertTrue(r1.getClass() == r2.getClass()); assertTrue(r1.equals(r2)); assertTrue(checkIndependence(r1, r2));
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/chart/plot/junit/PiePlotTests.java File path: /jfreechart-1.0.10/tests/org/jfree/chart/renderer/category/junit/LevelRendererTests.java
Method name: void testCloning_LegendLabelToolTipGenerator() Method name: void testCloning()
Number of AST nodes: 11 Number of AST nodes: 10
1
StandardPieSectionLabelGenerator generator 
1
LevelRender
2
                = new StandardPieSectionLabelGenerator();
2
er r1 = new LevelRenderer();
3
        PiePlot p1 = new PiePlot();
3
        r1.setItemMargin(0.123);
4
        p1.setLegendLabelToolTipGenerator(generator);
4
        r1.set
5
        PiePlot p
5
MaximumItemWidth(0.234);
6
2 = null;
6
        LevelRenderer r2 = null;
7
        try {
7
        try {
8
            p2 = (PiePlot) p1.clone();
8
            r2 = (LevelRenderer) r1.clone();
9
        }
9
        }
10
        catch (CloneNotSupportedException e) {
10
        catch (CloneNotSupportedException e) {
11
            e.printStackTrace();
11
            System.err.println("Failed to clone.");
12
        }
12
        }
13
        assertTrue(p1 != p2);
13
        assertTrue(r1 != r2);
14
        assertTrue(p1.getClass() == p2.getClass());
14
        assertTrue(r1.getClass() == r2.getClass());
15
        assertTrue(p1.equals(p2));
15
        assertTrue(r1.equals(r2));
16
        
17
        // change the generator and make sure it only affects p1
16
        
18
        generator.getNumberFormat().setMinimumFractionDigits(2);
19
        assertFalse(p1.equals(p2));
17
assertTrue(checkIndependence(r1, 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)0.3
Clones locationClones are in different classes having the same super class
Number of node comparisons54
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements7
    Number of unmapped statements in the first code fragment4
    Number of unmapped statements in the second code fragment3
    Time elapsed for statement mapping (ms)149.9
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    StandardPieSectionLabelGenerator generator = new StandardPieSectionLabelGenerator();
    1
    StandardPieSectionLabelGenerator generator = new StandardPieSectionLabelGenerator();
    1
    LevelRenderer r1 = new LevelRenderer();
    Differences
    Expression1Expression2Difference
    org.jfree.chart.labels.StandardPieSectionLabelGeneratororg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    generatorr1VARIABLE_NAME_MISMATCH
    org.jfree.chart.labels.StandardPieSectionLabelGeneratororg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    org.jfree.chart.labels.StandardPieSectionLabelGeneratororg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression new StandardPieSectionLabelGenerator() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression new LevelRenderer() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    1
    LevelRenderer r1 = new LevelRenderer();
                                                          
    2
    r1.setItemMargin(0.123);
    Preondition Violations
    Unmatched statement r1.setItemMargin(0.123); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2
    r1.setItemMargin(0.123);
                                                                      
    3
    r1.setMaximumItemWidth(0.234);
    Preondition Violations
    Unmatched statement r1.setMaximumItemWidth(0.234); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    3
    r1.setMaximumItemWidth(0.234);
    2
    PiePlot p1 = new PiePlot();
    2
    PiePlot p1 = new PiePlot();
    4
    LevelRenderer r2 = null;
    Differences
    Expression1Expression2Difference
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    p1r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    new PiePlot()nullTYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression new PiePlot() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4
    LevelRenderer r2 = null;
    3
    p1.setLegendLabelToolTipGenerator(generator);
    3
    p1.setLegendLabelToolTipGenerator(generator);
    Preondition Violations
    Unmatched statement p1.setLegendLabelToolTipGenerator(generator); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                                                    
    4
    PiePlot p2 = null;
                                          
    5
    try
    5
    try
    5
    try
    Differences
    Expression1Expression2Difference
    printStackTraceprintlnMETHOD_INVOCATION_NAME_MISMATCH
    eSystem.errAST_TYPE_MISMATCH
    e.printStackTrace()System.err.println("Failed to clone.")ARGUMENT_NUMBER_MISMATCH
    Preondition Violations
    Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    Expression e cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    5
    try
    6
    p2 = (PiePlot)p1.clone();
    6
    p2 = (PiePlot)p1.clone();
    6
    r2 = (LevelRenderer)r1.clone();
    Differences
    Expression1Expression2Difference
    p2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    p1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression (PiePlot)p1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression (LevelRenderer)r1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6
    r2 = (LevelRenderer)r1.clone();
    7
    assertTrue(p1 != p2);
    7
    assertTrue(p1 != p2);
    7
    assertTrue(r1 != r2);
    Differences
    Expression1Expression2Difference
    p1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    p2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7
    assertTrue(r1 != r2);
    8
    assertTrue(p1.getClass() == p2.getClass());
    8
    assertTrue(p1.getClass() == p2.getClass());
    8
    assertTrue(r1.getClass() == r2.getClass());
    Differences
    Expression1Expression2Difference
    p1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    p2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8
    assertTrue(r1.getClass() == r2.getClass());
    9
    assertTrue(p1.equals(p2));
    9
    assertTrue(p1.equals(p2));
    9
    assertTrue(r1.equals(r2));
    Differences
    Expression1Expression2Difference
    p2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    p1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.plot.PiePlotorg.jfree.chart.renderer.category.LevelRendererSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression p2 cannot be unified with expression r2 , because common superclass type org.jfree.util.PublicCloneable cannot be passed as an argument to public boolean equals(java.lang.Object)
    Expression p2 cannot be unified with expression r2 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression p1 cannot be unified with expression r1 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    9
    assertTrue(r1.equals(r2));
                                                                                      
    10
    assertTrue(checkIndependence(r1, r2));
    Preondition Violations
    Unmatched statement assertTrue(checkIndependence(r1,r2)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    10
    assertTrue(checkIndependence(r1, r2));
    10
    generator.getNumberFormat().setMinimumFractionDigits(2);
    10
    generator.getNumberFormat().setMinimumFractionDigits(2);
    Preondition Violations
    Unmatched statement generator.getNumberFormat().setMinimumFractionDigits(2); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                                                                            
    11
    assertFalse(p1.equals(p2));
    11
    assertFalse(p1.equals(p2));
    Preondition Violations
    Unmatched statement assertFalse(p1.equals(p2)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                  
    Precondition Violations (38)
    Row Violation
    1Expression new StandardPieSectionLabelGenerator() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression new LevelRenderer() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Unmatched statement r1.setItemMargin(0.123); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched statement r1.setMaximumItemWidth(0.234); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    5Expression new PiePlot() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Unmatched statement p1.setLegendLabelToolTipGenerator(generator); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    7Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    9Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    10Expression e cannot be parameterized, because it has dependencies to/from statements that will be extracted
    11Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    12Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    13Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    14Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    15Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    16Expression (PiePlot)p1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    17Expression (LevelRenderer)r1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    18Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    19Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    20Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    21Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    22Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    23Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    24Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    25Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    26Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    27Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    28Expression p2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    29Expression r2 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    30Expression p2 cannot be unified with expression r2 , because common superclass type org.jfree.util.PublicCloneable cannot be passed as an argument to public boolean equals(java.lang.Object)
    31Expression p2 cannot be unified with expression r2 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    32Expression p1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    33Expression r1 cannot be parameterized, because it has dependencies to/from statements that will be extracted
    34Expression p1 cannot be unified with expression r1 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    35Unmatched statement assertTrue(checkIndependence(r1,r2)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    36Unmatched statement generator.getNumberFormat().setMinimumFractionDigits(2); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    37Unmatched statement assertFalse(p1.equals(p2)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    38Clone fragment #1 returns variables generator, p1, p2 , while Clone fragment #2 returns variables r1, r2