if (obj == this) { return true; } if (!(obj instanceof ModuloAxis)) { return false; } ModuloAxis that = (ModuloAxis) obj; if (this.displayStart != that.displayStart) { return false; } if (this.displayEnd != that.displayEnd) { return false; } if (!this.fixedRange.equals(that.fixedRange)) { return false; } return super.equals(obj);
if (obj == this) { return true; } if (!(obj instanceof SimpleHistogramDataset)) { return false; } SimpleHistogramDataset that = (SimpleHistogramDataset) obj; if (!this.key.equals(that.key)) { return false; } if (this.adjustForBinSize != that.adjustForBinSize) { return false; } if (!this.bins.equals(that.bins)) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/axis/ModuloAxis.java File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/SimpleHistogramDataset.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 12 Number of AST nodes: 12
1
if (obj == this) {
1
if (obj == this) {
2
            return true;
2
            return true;
3
        }
3
        }
4
        if (!(obj instanceof ModuloAxis)) {
4
        if (!(obj instanceof SimpleHistogramDataset)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        ModuloAxis that = (ModuloAxis) obj;
7
        SimpleHistogramDataset that = (SimpleHistogramDataset) obj;
8
        if (this.displayStart != that.displayStart) {
8
        if (!this.key.equals(that.key)) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        if (this.displayEnd != that.displayEnd) {
11
        if (this.adjustForBinSize != that.adjustForBinSize) {
12
            return false;
12
            return false;
13
        }
13
        }
14
        if (!this.fixedRange.equals(that.fixedRange)) {
14
        if (!this.bins.equals(that.bins)) {
15
            return false;
15
            return false;
16
        }
16
        }
17
        return super.equals(obj);
17
        return true;
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)2.7
Clones locationClones are in different classes
Number of node comparisons41
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements9
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)4.7
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (obj == this)
    1
    if (obj == this)
    2
    return true;
    2
    return true;
    3
    if (!(obj instanceof ModuloAxis))
    3
    if (!(obj instanceof ModuloAxis))
    3
    if (!(obj instanceof SimpleHistogramDataset))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.axis.ModuloAxisorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    3
    if (!(obj instanceof SimpleHistogramDataset))
    4
    return false;
    4
    return false;
    5
    ModuloAxis that = (ModuloAxis)obj;
    5
    ModuloAxis that = (ModuloAxis)obj;
    5
    SimpleHistogramDataset that = (SimpleHistogramDataset)obj;
    Differences
    Expression1Expression2Difference
    org.jfree.chart.axis.ModuloAxisorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    org.jfree.chart.axis.ModuloAxisorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    org.jfree.chart.axis.ModuloAxisorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    5
    SimpleHistogramDataset that = (SimpleHistogramDataset)obj;
    6
    if (this.displayStart != that.displayStart)
    6
    if (this.displayStart != that.displayStart)
    8
    if (this.adjustForBinSize != that.adjustForBinSize)
    Differences
    Expression1Expression2Difference
    displayStartadjustForBinSizeVARIABLE_NAME_MISMATCH
    doublebooleanVARIABLE_TYPE_MISMATCH
    org.jfree.chart.axis.ModuloAxisorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    displayStartadjustForBinSizeVARIABLE_NAME_MISMATCH
    doublebooleanVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type double of variable this.displayStart does not match with type boolean of variable this.adjustForBinSize
    Expression that.displayStart cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.adjustForBinSize cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type double of variable that.displayStart does not match with type boolean of variable that.adjustForBinSize
    8
    if (this.adjustForBinSize != that.adjustForBinSize)
    7
    return false;
    9
    return false;
    8
    if (this.displayEnd != that.displayEnd)
    8
    if (this.displayEnd != that.displayEnd)
    Preondition Violations
    Unmatched statement if(this.displayEnd != that.displayEnd) cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                                      
    9
    return false;
    9
    return false;
    Preondition Violations
    Unmatched return false;
                                    
    10
    if (!this.fixedRange.equals(that.fixedRange))
    10
    if (!this.fixedRange.equals(that.fixedRange))
    6
    if (!this.key.equals(that.key))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.axis.ModuloAxisorg.jfree.data.statistics.SimpleHistogramDatasetSUBCLASS_TYPE_MISMATCH
    fixedRangekeyVARIABLE_NAME_MISMATCH
    org.jfree.data.Rangejava.lang.ComparableVARIABLE_TYPE_MISMATCH
    fixedRangekeyVARIABLE_NAME_MISMATCH
    org.jfree.data.Rangejava.lang.ComparableVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Expression that.fixedRange cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.key cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type org.jfree.data.Range of variable that.fixedRange does not match with type java.lang.Comparable of variable that.key
    • Make classes org.jfree.data.Range and java.lang.Comparable extend a common superclass
    Type org.jfree.data.Range of variable this.fixedRange does not match with type java.lang.Comparable of variable this.key
    • Make classes org.jfree.data.Range and java.lang.Comparable extend a common superclass
    6
    if (!this.key.equals(that.key))
    11
    return false;
    7
    return false;
    Precondition Violations (13)
    Row Violation
    1Type double of variable this.displayStart does not match with type boolean of variable this.adjustForBinSize
    2Expression that.displayStart cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression that.adjustForBinSize cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Type double of variable that.displayStart does not match with type boolean of variable that.adjustForBinSize
    5Unmatched statement if(this.displayEnd != that.displayEnd) cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    6Unmatched return false;
    7Expression that.fixedRange cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8Expression that.key cannot be parameterized, because it has dependencies to/from statements that will be extracted
    9Type org.jfree.data.Range of variable that.fixedRange does not match with type java.lang.Comparable of variable that.key
    10Type org.jfree.data.Range of variable this.fixedRange does not match with type java.lang.Comparable of variable this.key
    11Clone fragment #1 returns variable that with type org.jfree.chart.axis.ModuloAxis , while Clone fragment #2 returns variable that with type org.jfree.data.statistics.SimpleHistogramDataset
    12Not all possible execution flows end in a return statement
    13The refactoring of the clones is infeasible, because classes org.jfree.chart.axis.ModuloAxis and org.jfree.data.statistics.SimpleHistogramDataset do not have a common superclass