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 YInterval)) { return false; } YInterval that = (YInterval) obj; if (this.y != that.y) { return false; } if (this.yLow != that.yLow) { return false; } if (this.yHigh != that.yHigh) { 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/YInterval.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 YInterval)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        SimpleHistogramDataset that = (SimpleHistogramDataset) obj;
7
        YInterval that = (YInterval) obj;
8
        if (!this.key.equals(that.key)) {
8
        if (this.y != that.y) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        if (this.adjustForBinSize != that.adjustForBinSize) {
11
        if (this.yLow != that.yLow) {
12
            return false;
12
            return false;
13
        }
13
        }
14
        if (!this.bins.equals(that.bins)) {
14
        if (this.yHigh != that.yHigh) {
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)1.7
Clones locationClones are in different classes
Number of node comparisons35
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)2.1
    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 YInterval))
    Differences
    Expression1Expression2Difference
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.YIntervalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.statistics.SimpleHistogramDataset does not match with type org.jfree.data.xy.YInterval
    • Make classes org.jfree.data.statistics.SimpleHistogramDataset and org.jfree.data.xy.YInterval extend a common superclass
    3
    if (!(obj instanceof YInterval))
    4
    return false;
    4
    return false;
                                                                      
    5
    YInterval that = (YInterval)obj;
    5
    SimpleHistogramDataset that = (SimpleHistogramDataset)obj;
                                                                                                                          
    6
    if (!this.key.equals(that.key))
                                                                      
    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.y != that.y)
    Differences
    Expression1Expression2Difference
    adjustForBinSizeyVARIABLE_NAME_MISMATCH
    booleandoubleVARIABLE_TYPE_MISMATCH
    org.jfree.data.statistics.SimpleHistogramDatasetorg.jfree.data.xy.YIntervalVARIABLE_TYPE_MISMATCH
    adjustForBinSizeyVARIABLE_NAME_MISMATCH
    booleandoubleVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type boolean of variable this.adjustForBinSize does not match with type double of variable this.y
    Type boolean of variable that.adjustForBinSize does not match with type double of variable that.y
    • Make classes org.jfree.data.statistics.SimpleHistogramDataset and org.jfree.data.xy.YInterval extend a common superclass
    Expression that.adjustForBinSize cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.y cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type boolean of variable that.adjustForBinSize does not match with type double of variable that.y
    6
    if (this.y != that.y)
    9
    return false;
    7
    return false;
    Precondition Violations (9)
    Row Violation
    1Type org.jfree.data.statistics.SimpleHistogramDataset does not match with type org.jfree.data.xy.YInterval
    2Unmatched return false;
    3Type boolean of variable this.adjustForBinSize does not match with type double of variable this.y
    4Type boolean of variable that.adjustForBinSize does not match with type double of variable that.y
    5Expression that.adjustForBinSize cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression that.y cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Type boolean of variable that.adjustForBinSize does not match with type double of variable that.y
    8Not all possible execution flows end in a return statement
    9The refactoring of the clones is infeasible, because classes org.jfree.data.statistics.SimpleHistogramDataset and org.jfree.data.xy.YInterval do not have a common superclass