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;
if (obj == this) { return true; } if (!(obj instanceof IntervalXYDelegate)) { return false; } IntervalXYDelegate that = (IntervalXYDelegate) obj; if (this.autoWidth != that.autoWidth) { return false; } if (this.intervalPositionFactor != that.intervalPositionFactor) { return false; } if (this.fixedIntervalWidth != that.fixedIntervalWidth) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/SimpleHistogramDataset.java File path: /jfreechart-1.0.10/src/org/jfree/data/xy/IntervalXYDelegate.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 SimpleHistogramDataset)) {
4
        if (!(obj instanceof IntervalXYDelegate)) {
5
            return false;
5
            return false;   
6
        }
6
        }
7
        SimpleHistogramDataset that = (SimpleHistogramDataset) obj;
7
        IntervalXYDelegate that = (IntervalXYDelegate) obj;
8
        if (!this.key.equals(that.key)) {
8
        if (this.autoWidth != that.autoWidth) {
9
            return false;
9
            return false;   
10
        }
10
        }
11
        if (this.adjustForBinSize != that.adjustForBinSize) {
11
        if (this.intervalPositionFactor != that.intervalPositionFactor) {
12
            return false;
12
            return false;   
13
        }
13
        }
14
        if (!this.bins.equals(that.bins)) {
14
        if (this.fixedIntervalWidth != that.fixedIntervalWidth) {
15
            return false;
15
            return false;   
16
        }
16
        }
17
        return true;
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)2.2
Clones locationClones are in different classes
Number of node comparisons35
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements7
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)3.6
    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 SimpleHistogramDataset))
    3
    if (!(obj instanceof SimpleHistogramDataset))
    3
    if (!(obj instanceof IntervalXYDelegate))
    Differences
    Expression1Expression2Difference
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.IntervalXYDelegateSUBCLASS_TYPE_MISMATCH
    3
    if (!(obj instanceof IntervalXYDelegate))
    4
    return false;
    4
    return false;
    5
    SimpleHistogramDataset that = (SimpleHistogramDataset)obj;
    5
    SimpleHistogramDataset that = (SimpleHistogramDataset)obj;
    5
    IntervalXYDelegate that = (IntervalXYDelegate)obj;
    Differences
    Expression1Expression2Difference
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.IntervalXYDelegateSUBCLASS_TYPE_MISMATCH
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.IntervalXYDelegateSUBCLASS_TYPE_MISMATCH
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.IntervalXYDelegateSUBCLASS_TYPE_MISMATCH
    5
    IntervalXYDelegate that = (IntervalXYDelegate)obj;
    6
    if (!this.key.equals(that.key))
    6
    if (!this.key.equals(that.key))
    Preondition Violations
    Unmatched statement if(!this.key.equals(that.key)) cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                      
    7
    return false;
    7
    return false;
    Preondition Violations
    Unmatched return false;
                                    
    8
    if (this.adjustForBinSize != that.adjustForBinSize)
    8
    if (this.adjustForBinSize != that.adjustForBinSize)
    6
    if (this.autoWidth != that.autoWidth)
    Differences
    Expression1Expression2Difference
    adjustForBinSizeautoWidthVARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.IntervalXYDelegateSUBCLASS_TYPE_MISMATCH
    adjustForBinSizeautoWidthVARIABLE_NAME_MISMATCH
    Preondition Violations
    Expression that.adjustForBinSize cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.autoWidth cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6
    if (this.autoWidth != that.autoWidth)
    9
    return false;
    7
    return false;
    Precondition Violations (7)
    Row Violation
    1Unmatched statement if(!this.key.equals(that.key)) cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2Unmatched return false;
    3Expression that.adjustForBinSize cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression that.autoWidth cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Clone fragment #1 returns variable that with type org.jfree.data.statistics.SimpleHistogramDataset , while Clone fragment #2 returns variable that with type org.jfree.data.xy.IntervalXYDelegate
    6Not all possible execution flows end in a return statement
    7The refactoring of the clones is infeasible, because classes org.jfree.data.statistics.SimpleHistogramDataset and org.jfree.data.xy.IntervalXYDelegate do not have a common superclass