if (obj == this) { return true; } if (!(obj instanceof XYAreaRenderer2)) { return false; } XYAreaRenderer2 that = (XYAreaRenderer2) obj; if (this.showOutline != that.showOutline) { return false; } if (!ShapeUtilities.equal(this.legendArea, that.legendArea)) { return false; } return super.equals(obj);
if (obj == this) { return true; } if (!(obj instanceof MeanAndStandardDeviation)) { return false; } MeanAndStandardDeviation that = (MeanAndStandardDeviation) obj; if (!ObjectUtilities.equal(this.mean, that.mean)) { return false; } if (!ObjectUtilities.equal( this.standardDeviation, that.standardDeviation) ) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/renderer/xy/XYAreaRenderer2.java File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/MeanAndStandardDeviation.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 10 Number of AST nodes: 10
1
if (obj == this) {    
1
if (obj == this) {
2
            return true;
2
            return true;   
3
        }
3
        }
4
        if (!(obj instanceof XYAreaRenderer2)) {
4
        if (!(obj instanceof MeanAndStandardDeviation)) {
5
            return false;
5
            return false;   
6
        }
6
        }
7
        XYAreaRenderer2 that = (XYAreaRenderer2) obj;
7
        
8
        if (this.showOutline != that.showOutline
8
MeanAndStandardDeviation that = (MeanAndStandardDeviation) obj;
9
) {
9
        if (!ObjectUtilities.equal(this.mean, that.mean)) {
10
            return false;
10
            return false;   
11
        }
11
        }
12
        if (!ShapeUtilities.equal(
12
        if (!ObjectUtilities.equal(
13
this.legendArea, that.legendArea)
13
            this.standardDeviation, that.standardDeviation)
14
) {
14
        ) {
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)1.1
Clones locationClones are in different classes
Number of node comparisons29
  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)1.7
    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 XYAreaRenderer2))
    3
    if (!(obj instanceof XYAreaRenderer2))
    3
    if (!(obj instanceof MeanAndStandardDeviation))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.statistics.MeanAndStandardDeviationVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.renderer.xy.XYAreaRenderer2 does not match with type org.jfree.data.statistics.MeanAndStandardDeviation
    • Make classes org.jfree.chart.renderer.xy.XYAreaRenderer2 and org.jfree.data.statistics.MeanAndStandardDeviation extend a common superclass
    3
    if (!(obj instanceof MeanAndStandardDeviation))
    4
    return false;
    4
    return false;
                                                                                                                                  
    5
    MeanAndStandardDeviation that = (MeanAndStandardDeviation)obj;
    5
    XYAreaRenderer2 that = (XYAreaRenderer2)obj;
                                                                                              
    6
    if (this.showOutline != that.showOutline)
                                                                                          
    7
    return false;
    7
    return false;
    Preondition Violations
    Unmatched return false;
                                    
    8
    if (!ShapeUtilities.equal(this.legendArea, that.legendArea))
    8
    if (!ShapeUtilities.equal(this.legendArea, that.legendArea))
    6
    if (!ObjectUtilities.equal(this.mean, that.mean))
    Differences
    Expression1Expression2Difference
    legendAreameanVARIABLE_NAME_MISMATCH
    java.awt.Shapejava.lang.NumberVARIABLE_TYPE_MISMATCH
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.statistics.MeanAndStandardDeviationVARIABLE_TYPE_MISMATCH
    legendAreameanVARIABLE_NAME_MISMATCH
    java.awt.Shapejava.lang.NumberVARIABLE_TYPE_MISMATCH
    org.jfree.util.ShapeUtilitiesorg.jfree.util.ObjectUtilitiesVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.awt.Shape of variable this.legendArea does not match with type java.lang.Number of variable this.mean
    • Make classes java.awt.Shape and java.lang.Number extend a common superclass
    Type java.awt.Shape of variable that.legendArea does not match with type java.lang.Number of variable that.mean
    • Make classes org.jfree.chart.renderer.xy.XYAreaRenderer2 and org.jfree.data.statistics.MeanAndStandardDeviation extend a common superclass
    Expression that.legendArea cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.mean cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.awt.Shape of variable that.legendArea does not match with type java.lang.Number of variable that.mean
    • Make classes java.awt.Shape and java.lang.Number extend a common superclass
    Type org.jfree.util.ShapeUtilities does not match with type org.jfree.util.ObjectUtilities
    • Make classes org.jfree.util.ShapeUtilities and org.jfree.util.ObjectUtilities extend a common superclass
    6
    if (!ObjectUtilities.equal(this.mean, that.mean))
    9
    return false;
    7
    return false;
    Precondition Violations (10)
    Row Violation
    1Type org.jfree.chart.renderer.xy.XYAreaRenderer2 does not match with type org.jfree.data.statistics.MeanAndStandardDeviation
    2Unmatched return false;
    3Type java.awt.Shape of variable this.legendArea does not match with type java.lang.Number of variable this.mean
    4Type java.awt.Shape of variable that.legendArea does not match with type java.lang.Number of variable that.mean
    5Expression that.legendArea cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression that.mean cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Type java.awt.Shape of variable that.legendArea does not match with type java.lang.Number of variable that.mean
    8Type org.jfree.util.ShapeUtilities does not match with type org.jfree.util.ObjectUtilities
    9Not all possible execution flows end in a return statement
    10The refactoring of the clones is infeasible, because classes org.jfree.chart.renderer.xy.XYAreaRenderer2 and org.jfree.data.statistics.MeanAndStandardDeviation do not have a common superclass