DefaultKeyedValue v1 = new DefaultKeyedValue("Test", new Double(45.5)); DefaultKeyedValue v2 = null; try { v2 = (DefaultKeyedValue) v1.clone(); } catch (CloneNotSupportedException e) { System.err.println("Failed to clone."); } assertTrue(v1 != v2); assertTrue(v1.getClass() == v2.getClass()); assertTrue(v1.equals(v2)); // confirm that the clone is independent of the original v2.setValue(new Double(12.3)); assertFalse(v1.equals(v2));
SimpleHistogramDataset d1 = new SimpleHistogramDataset("Dataset 1"); SimpleHistogramDataset d2 = null; try { d2 = (SimpleHistogramDataset) d1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(d1 != d2); assertTrue(d1.getClass() == d2.getClass()); assertTrue(d1.equals(d2)); // check that clone is independent of the original d2.addBin(new SimpleHistogramBin(2.0, 3.0)); d2.addObservation(2.3); assertFalse(d1.equals(d2));
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/data/junit/DefaultKeyedValueTests.java File path: /jfreechart-1.0.10/tests/org/jfree/data/statistics/junit/SimpleHistogramDatasetTests.java
Method name: void testCloning() Method name: void testCloning()
Number of AST nodes: 9 Number of AST nodes: 10
1
DefaultKeyedValue v1 = new DefaultKeyedValue("Test", new Double(45.5));
2
        DefaultKeyedValue v
1
SimpleHistogramDataset d1 = new SimpleHistogramDataset("Dataset 1");
3
2 = null;
2
        SimpleHistogramDataset d2 = null;
4
        try {
3
        try {
5
            v2 = (DefaultKeyedValue) v1.clone();
4
            d2 = (SimpleHistogramDataset) d1.clone();
6
        }
5
        }
7
        catch (CloneNotSupportedException e) {
6
        catch (CloneNotSupportedException e) {
8
            System.err.println("Failed to clone.");
7
            e.printStackTrace();
9
        }
8
        }
10
        assertTrue(v1 != v2);
9
        assertTrue(d1 != d2);
11
        assertTrue(v1.getClass() == v2.getClass());
10
        assertTrue(d1.getClass() == d2.getClass());
12
        assertTrue(v1.equals(v2));
11
        assertTrue(d1.equals(d2));
13
        
12
        
14
        // confirm that the clone is independent of the original
13
        // check that clone is independent of the original
15
        v2.setValue(new Double(12.3)
14
        d2.addBin(new SimpleHistogramBin(2.0, 3.0));
16
);
15
        d2.addObservation(2.3);
17
        assertFalse(v1.equals(v2));
16
        assertFalse(d1.equals(d2));
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 comparisons40
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements8
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)28.9
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    DefaultKeyedValue v1 = new DefaultKeyedValue("Test", new Double(45.5));
    1
    DefaultKeyedValue v1 = new DefaultKeyedValue("Test", new Double(45.5));
    1
    SimpleHistogramDataset d1 = new SimpleHistogramDataset("Dataset 1");
    Differences
    Expression1Expression2Difference
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v1d1VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    new DefaultKeyedValue("Test",new Double(45.5))new SimpleHistogramDataset("Dataset 1")ARGUMENT_NUMBER_MISMATCH
    Preondition Violations
    Expression new DefaultKeyedValue("Test",new Double(45.5)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression new SimpleHistogramDataset("Dataset 1") cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression new DefaultKeyedValue("Test",new Double(45.5)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression new SimpleHistogramDataset("Dataset 1") cannot be parameterized, because it has dependencies to/from statements that will be extracted
    1
    SimpleHistogramDataset d1 = new SimpleHistogramDataset("Dataset 1");
    2
    DefaultKeyedValue v2 = null;
    2
    DefaultKeyedValue v2 = null;
    2
    SimpleHistogramDataset d2 = null;
    Differences
    Expression1Expression2Difference
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v2d2VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    2
    SimpleHistogramDataset d2 = null;
    3
    try
    3
    try
    3
    try
    Differences
    Expression1Expression2Difference
    printlnprintStackTraceMETHOD_INVOCATION_NAME_MISMATCH
    System.erreAST_TYPE_MISMATCH
    System.err.println("Failed to clone.")e.printStackTrace()ARGUMENT_NUMBER_MISMATCH
    Preondition Violations
    Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    Expression e.printStackTrace() 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 System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    3
    try
    4
    v2 = (DefaultKeyedValue)v1.clone();
    4
    v2 = (DefaultKeyedValue)v1.clone();
    4
    d2 = (SimpleHistogramDataset)d1.clone();
    Differences
    Expression1Expression2Difference
    v2d2VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v1d1VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression (DefaultKeyedValue)v1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression (SimpleHistogramDataset)d1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4
    d2 = (SimpleHistogramDataset)d1.clone();
    5
    assertTrue(v1 != v2);
    5
    assertTrue(v1 != v2);
    5
    assertTrue(d1 != d2);
    Differences
    Expression1Expression2Difference
    v1d1VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v2d2VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    5
    assertTrue(d1 != d2);
    6
    assertTrue(v1.getClass() == v2.getClass());
    6
    assertTrue(v1.getClass() == v2.getClass());
    6
    assertTrue(d1.getClass() == d2.getClass());
    Differences
    Expression1Expression2Difference
    v1d1VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v2d2VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    6
    assertTrue(d1.getClass() == d2.getClass());
    7
    assertTrue(v1.equals(v2));
    7
    assertTrue(v1.equals(v2));
    7
    assertTrue(d1.equals(d2));
    Differences
    Expression1Expression2Difference
    v2d2VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v1d1VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression v2 cannot be unified with expression d2 , because common superclass type org.jfree.util.PublicCloneable cannot be passed as an argument to public boolean equals(java.lang.Object)
    Expression v2 cannot be unified with expression d2 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    Expression v1 cannot be unified with expression d1 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    7
    assertTrue(d1.equals(d2));
                                                                                                
    8
    d2.addBin(new SimpleHistogramBin(2.0, 3.0));
    Preondition Violations
    Unmatched statement d2.addBin(new SimpleHistogramBin(2.0,3.0)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    8
    d2.addBin(new SimpleHistogramBin(2.0, 3.0));
    8
    v2.setValue(new Double(12.3));
    8
    v2.setValue(new Double(12.3));
    Preondition Violations
    Unmatched statement v2.setValue(new Double(12.3)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                      
                                                        
    9
    d2.addObservation(2.3);
    Preondition Violations
    Unmatched statement d2.addObservation(2.3); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    9
    d2.addObservation(2.3);
    9
    assertFalse(v1.equals(v2));
    9
    assertFalse(v1.equals(v2));
    10
    assertFalse(d1.equals(d2));
    Differences
    Expression1Expression2Difference
    v2d2VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    v1d1VARIABLE_NAME_MISMATCH
    org.jfree.data.DefaultKeyedValueorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    Preondition Violations
    Expression v2 cannot be unified with expression d2 , because common superclass type org.jfree.util.PublicCloneable cannot be passed as an argument to public boolean equals(java.lang.Object)
    Expression v2 cannot be unified with expression d2 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    Expression v1 cannot be unified with expression d1 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    10
    assertFalse(d1.equals(d2));
    Precondition Violations (23)
    Row Violation
    1Expression new DefaultKeyedValue("Test",new Double(45.5)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression new SimpleHistogramDataset("Dataset 1") cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression new DefaultKeyedValue("Test",new Double(45.5)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression new SimpleHistogramDataset("Dataset 1") cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    7Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    8Expression e cannot be parameterized, because it has dependencies to/from statements that will be extracted
    9Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    10Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    11Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    12Expression (DefaultKeyedValue)v1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    13Expression (SimpleHistogramDataset)d1.clone() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    14Expression v2 cannot be unified with expression d2 , because common superclass type org.jfree.util.PublicCloneable cannot be passed as an argument to public boolean equals(java.lang.Object)
    15Expression v2 cannot be unified with expression d2 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    16Expression v1 cannot be unified with expression d1 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    17Unmatched statement d2.addBin(new SimpleHistogramBin(2.0,3.0)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    18Unmatched statement v2.setValue(new Double(12.3)); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    19Unmatched statement d2.addObservation(2.3); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    20Expression v2 cannot be unified with expression d2 , because common superclass type org.jfree.util.PublicCloneable cannot be passed as an argument to public boolean equals(java.lang.Object)
    21Expression v2 cannot be unified with expression d2 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    22Expression v1 cannot be unified with expression d1 , because common superclass org.jfree.util.PublicCloneable does not declare member(s) public boolean equals(java.lang.Object)
    23Clone fragment #1 returns variable v2 with type org.jfree.data.DefaultKeyedValue , while Clone fragment #2 returns variable d2 with type org.jfree.data.statistics.SimpleHistogramDataset