PlumNeedle n1 = new PlumNeedle(); PlumNeedle n2 = null; try { ByteArrayOutputStream buffer = new ByteArrayOutputStream(); ObjectOutput out = new ObjectOutputStream(buffer); out.writeObject(n1); out.close(); ObjectInput in = new ObjectInputStream( new ByteArrayInputStream(buffer.toByteArray()) ); n2 = (PlumNeedle) in.readObject(); in.close(); } catch (Exception e) { e.printStackTrace(); } assertTrue(n1.equals(n2));
SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1"); SimpleHistogramDataset d2 = null; try { ByteArrayOutputStream buffer = new ByteArrayOutputStream(); ObjectOutput out = new ObjectOutputStream(buffer); out.writeObject(d1); out.close(); ObjectInput in = new ObjectInputStream( new ByteArrayInputStream(buffer.toByteArray())); d2 = (SimpleHistogramDataset) in.readObject(); in.close(); } catch (Exception e) { e.printStackTrace(); } assertEquals(d1, d2);
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/chart/needle/junit/PlumNeedleTests.java File path: /jfreechart-1.0.10/tests/org/jfree/data/statistics/junit/SimpleHistogramDatasetTests.java
Method name: void testSerialization() Method name: void testSerialization()
Number of AST nodes: 11 Number of AST nodes: 11
1
PlumNeedle n1 = new PlumNeedle();
2
        PlumNeedle n
1
SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1");
3
2 = null;
2
        SimpleHistogramDataset d2 = null;        
4
        try {
3
        try {
5
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
4
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
6
            ObjectOutput out = new ObjectOutputStream(buffer);
5
            ObjectOutput out = new ObjectOutputStream(buffer);
7
            out.writeObject(n1);
6
            out.writeObject(d1);
8
            out.close();
7
            out.close();
9
            ObjectInput in = new ObjectInputStream(
8
            ObjectInput in = new ObjectInputStream(
10
                new ByteArrayInputStream(buffer.toByteArray())
9
                    new ByteArrayInputStream(buffer.toByteArray())
11
            );
10
);
12
            n2 = (PlumNeedle) in.readObject();
11
            d2 = (SimpleHistogramDataset) in.readObject();
13
            in.close();
12
            in.close();
14
        }
13
        }
15
        catch (Exception e) {
14
        catch (Exception e) {
16
            e.printStackTrace();
15
            e.printStackTrace();
17
        }
16
        }
18
        assertTrue(n1.equals(n2));
17
        assertEquals(d1, 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)0.1
Clones locationClones are in different classes having the same super class
Number of node comparisons73
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements8
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment3
    Time elapsed for statement mapping (ms)22.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
                                                                                                                                
    1
    SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1");
    Preondition Violations
    Unmatched statement SimpleHistogramDataset d1=new SimpleHistogramDataset("D1"); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    1
    SimpleHistogramDataset d1 = new SimpleHistogramDataset("D1");
    1
    PlumNeedle n1 = new PlumNeedle();
                                                                        
                                                                        
    2
    SimpleHistogramDataset d2 = null;
    2
    PlumNeedle n2 = null;
                                                
    3
    try
    3
    try
    4
    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
    4
    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
    5
    ObjectOutput out = new ObjectOutputStream(buffer);
    5
    ObjectOutput out = new ObjectOutputStream(buffer);
    6
    out.writeObject(n1);
    6
    out.writeObject(n1);
    6
    out.writeObject(d1);
    Differences
    Expression1Expression2Difference
    n1d1VARIABLE_NAME_MISMATCH
    org.jfree.chart.needle.PlumNeedleorg.jfree.data.statistics.SimpleHistogramDatasetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.needle.PlumNeedle of variable n1 does not match with type org.jfree.data.statistics.SimpleHistogramDataset of variable d1
    • Make classes org.jfree.chart.needle.PlumNeedle and org.jfree.data.statistics.SimpleHistogramDataset extend a common superclass
    6
    out.writeObject(d1);
    7
    out.close();
    7
    out.close();
    8
    ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
    8
    ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
                                                                                                
    9
    d2 = (SimpleHistogramDataset)in.readObject();
    Preondition Violations
    Unmatched statement d2=(SimpleHistogramDataset)in.readObject(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement d2=(SimpleHistogramDataset)in.readObject(); 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
    9
    d2 = (SimpleHistogramDataset)in.readObject();
    9
    n2 = (PlumNeedle)in.readObject();
    9
    n2 = (PlumNeedle)in.readObject();
    Preondition Violations
    Unmatched statement n2=(PlumNeedle)in.readObject(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement n2=(PlumNeedle)in.readObject(); 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
                                                                        
    10
    in.close();
    10
    in.close();
    11
    assertTrue(n1.equals(n2));
    11
    assertTrue(n1.equals(n2));
    11
    assertEquals(d1, d2);
    Differences
    Expression1Expression2Difference
    assertTrueassertEqualsMETHOD_INVOCATION_NAME_MISMATCH
    assertTrue(n1.equals(n2))assertEquals(d1,d2)ARGUMENT_NUMBER_MISMATCH
    Preondition Violations
    Expression assertTrue(n1.equals(n2)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression assertEquals(d1,d2) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression assertTrue(n1.equals(n2)) is a void method call, and thus it cannot be parameterized
    Expression assertEquals(d1,d2) is a void method call, and thus it cannot be parameterized
    Expression assertTrue(n1.equals(n2)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression assertEquals(d1,d2) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression assertTrue(n1.equals(n2)) is a void method call, and thus it cannot be parameterized
    Expression assertEquals(d1,d2) is a void method call, and thus it cannot be parameterized
    11
    assertEquals(d1, d2);
    Precondition Violations (14)
    Row Violation
    1Unmatched statement SimpleHistogramDataset d1=new SimpleHistogramDataset("D1"); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Type org.jfree.chart.needle.PlumNeedle of variable n1 does not match with type org.jfree.data.statistics.SimpleHistogramDataset of variable d1
    3Unmatched statement d2=(SimpleHistogramDataset)in.readObject(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched statement d2=(SimpleHistogramDataset)in.readObject(); 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
    5Unmatched statement n2=(PlumNeedle)in.readObject(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    6Unmatched statement n2=(PlumNeedle)in.readObject(); 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
    7Expression assertTrue(n1.equals(n2)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8Expression assertEquals(d1,d2) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    9Expression assertTrue(n1.equals(n2)) is a void method call, and thus it cannot be parameterized
    10Expression assertEquals(d1,d2) is a void method call, and thus it cannot be parameterized
    11Expression assertTrue(n1.equals(n2)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    12Expression assertEquals(d1,d2) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    13Expression assertTrue(n1.equals(n2)) is a void method call, and thus it cannot be parameterized
    14Expression assertEquals(d1,d2) is a void method call, and thus it cannot be parameterized