double start = 10.0; double end = 20.0; HistogramBin b1 = new HistogramBin(start, end); HistogramBin b2 = null; try { b2 = (HistogramBin) b1.clone(); } catch (CloneNotSupportedException e) { System.err.println("Failed to clone."); } assertTrue(b1 != b2); assertTrue(b1.getClass() == b2.getClass()); assertTrue(b1.equals(b2));
XIntervalSeries s1 = new XIntervalSeries("s1"); s1.add(1.0, 0.5, 1.5, 2.0); XIntervalSeries s2 = null; try { s2 = (XIntervalSeries) s1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(s1 != s2); assertTrue(s1.getClass() == s2.getClass()); assertTrue(s1.equals(s2));
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/data/statistics/junit/HistogramBinTests.java File path: /jfreechart-1.0.10/tests/org/jfree/data/xy/junit/XIntervalSeriesTests.java
Method name: void testCloning() Method name: void testCloning()
Number of AST nodes: 9 Number of AST nodes: 8
1
double start = 10.0;
2
        double end =
1
XIntervalSeries s1 = new XIntervalSeries("s1");
3
 20.0;
2
        s1.add(1.0, 0.5, 1.5, 2.0);
4
        HistogramBin b1 = new HistogramBin(start, end);
3
        
5
        HistogramBin b2 = null;
4
XIntervalSeries s2 = null;
6
        try {
5
        try {
7
            b2 = (HistogramBin) b1.clone();
6
            s2 = (XIntervalSeries) s1.clone();
8
        }
7
        }
9
        catch (CloneNotSupportedException e) {
8
        catch (CloneNotSupportedException e) {
10
            System.err.println("Failed to clone.");
9
            e.printStackTrace();
11
        }
10
        }
12
        assertTrue(b1 != b2);
11
        assertTrue(s1 != s2);
13
        assertTrue(b1.getClass() == b2.getClass());
12
        assertTrue(s1.getClass() == s2.getClass());
14
        assertTrue(b1.equals(b2));
13
        assertTrue(s1.equals(s2));
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 comparisons46
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements4
    Number of unmapped statements in the first code fragment5
    Number of unmapped statements in the second code fragment4
    Time elapsed for statement mapping (ms)4.2
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
                                                                                                    
    1
    XIntervalSeries s1 = new XIntervalSeries("s1");
    1
    double start = 10.0;
                                              
                                                          
    2
    s1.add(1.0, 0.5, 1.5, 2.0);
    Preondition Violations
    Unmatched statement s1.add(1.0,0.5,1.5,2.0); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2
    s1.add(1.0, 0.5, 1.5, 2.0);
    2
    double end = 20.0;
                                          
                                                          
    3
    XIntervalSeries s2 = null;
    3
    HistogramBin b1 = new HistogramBin(start, end);
    3
    HistogramBin b1 = new HistogramBin(start, end);
    Preondition Violations
    Unmatched statement HistogramBin b1=new HistogramBin(start,end); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                                  
    4
    HistogramBin b2 = null;
                                                    
    5
    try
    5
    try
    4
    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
    4
    try
                                                                        
    5
    s2 = (XIntervalSeries)s1.clone();
    Preondition Violations
    Unmatched statement s2=(XIntervalSeries)s1.clone(); 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
    5
    s2 = (XIntervalSeries)s1.clone();
    6
    b2 = (HistogramBin)b1.clone();
    6
    b2 = (HistogramBin)b1.clone();
    Preondition Violations
    Unmatched statement b2=(HistogramBin)b1.clone(); 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
                                                                  
    7
    assertTrue(b1 != b2);
    7
    assertTrue(b1 != b2);
    6
    assertTrue(s1 != s2);
    Differences
    Expression1Expression2Difference
    b1s1VARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramBinorg.jfree.data.xy.XIntervalSeriesVARIABLE_TYPE_MISMATCH
    b2s2VARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramBinorg.jfree.data.xy.XIntervalSeriesVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.statistics.HistogramBin of variable b1 does not match with type org.jfree.data.xy.XIntervalSeries of variable s1
    • Make classes org.jfree.data.statistics.HistogramBin and org.jfree.data.xy.XIntervalSeries extend a common superclass
    Type org.jfree.data.statistics.HistogramBin of variable b2 does not match with type org.jfree.data.xy.XIntervalSeries of variable s2
    • Make classes org.jfree.data.statistics.HistogramBin and org.jfree.data.xy.XIntervalSeries extend a common superclass
    6
    assertTrue(s1 != s2);
    8
    assertTrue(b1.getClass() == b2.getClass());
    8
    assertTrue(b1.getClass() == b2.getClass());
    7
    assertTrue(s1.getClass() == s2.getClass());
    Differences
    Expression1Expression2Difference
    b1s1VARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramBinorg.jfree.data.xy.XIntervalSeriesVARIABLE_TYPE_MISMATCH
    b2s2VARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramBinorg.jfree.data.xy.XIntervalSeriesVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.statistics.HistogramBin of variable b1 does not match with type org.jfree.data.xy.XIntervalSeries of variable s1
    • Make classes org.jfree.data.statistics.HistogramBin and org.jfree.data.xy.XIntervalSeries extend a common superclass
    Type org.jfree.data.statistics.HistogramBin of variable b2 does not match with type org.jfree.data.xy.XIntervalSeries of variable s2
    • Make classes org.jfree.data.statistics.HistogramBin and org.jfree.data.xy.XIntervalSeries extend a common superclass
    7
    assertTrue(s1.getClass() == s2.getClass());
    9
    assertTrue(b1.equals(b2));
    9
    assertTrue(b1.equals(b2));
    8
    assertTrue(s1.equals(s2));
    Differences
    Expression1Expression2Difference
    b2s2VARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramBinorg.jfree.data.xy.XIntervalSeriesVARIABLE_TYPE_MISMATCH
    b1s1VARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramBinorg.jfree.data.xy.XIntervalSeriesVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.statistics.HistogramBin of variable b2 does not match with type org.jfree.data.xy.XIntervalSeries of variable s2
    • Make classes org.jfree.data.statistics.HistogramBin and org.jfree.data.xy.XIntervalSeries extend a common superclass
    Type org.jfree.data.statistics.HistogramBin of variable b1 does not match with type org.jfree.data.xy.XIntervalSeries of variable s1
    • Make classes org.jfree.data.statistics.HistogramBin and org.jfree.data.xy.XIntervalSeries extend a common superclass
    8
    assertTrue(s1.equals(s2));
    Precondition Violations (17)
    Row Violation
    1Unmatched statement s1.add(1.0,0.5,1.5,2.0); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Unmatched statement HistogramBin b1=new HistogramBin(start,end); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Expression e.printStackTrace() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    5Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    6Expression e cannot be parameterized, 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 System.err.println("Failed to clone.") is a void method call, and thus it cannot be parameterized
    9Expression e.printStackTrace() is a void method call, and thus it cannot be parameterized
    10Unmatched statement s2=(XIntervalSeries)s1.clone(); 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
    11Unmatched statement b2=(HistogramBin)b1.clone(); 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
    12Type org.jfree.data.statistics.HistogramBin of variable b1 does not match with type org.jfree.data.xy.XIntervalSeries of variable s1
    13Type org.jfree.data.statistics.HistogramBin of variable b2 does not match with type org.jfree.data.xy.XIntervalSeries of variable s2
    14Type org.jfree.data.statistics.HistogramBin of variable b1 does not match with type org.jfree.data.xy.XIntervalSeries of variable s1
    15Type org.jfree.data.statistics.HistogramBin of variable b2 does not match with type org.jfree.data.xy.XIntervalSeries of variable s2
    16Type org.jfree.data.statistics.HistogramBin of variable b2 does not match with type org.jfree.data.xy.XIntervalSeries of variable s2
    17Type org.jfree.data.statistics.HistogramBin of variable b1 does not match with type org.jfree.data.xy.XIntervalSeries of variable s1