if (obj == this) { return true; } if (!(obj instanceof LegendItemCollection)) { return false; } LegendItemCollection that = (LegendItemCollection) obj; if (!this.items.equals(that.items)) { return false; } return true;
if (obj == this) { return true; } if (!(obj instanceof DefaultStatisticalCategoryDataset)) { return false; } DefaultStatisticalCategoryDataset that = (DefaultStatisticalCategoryDataset) obj; if (!this.data.equals(that.data)) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/LegendItemCollection.java File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/DefaultStatisticalCategoryDataset.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 8 Number of AST nodes: 8
1
if (obj == this) {
1
if (obj == this) {
2
            return true;
2
            return true;   
3
        }
3
        }
4
        if (!(obj instanceof LegendItemCollection)) {
4
        if (!(obj instanceof DefaultStatisticalCategoryDataset)) {
5
            return false;
5
            return false;   
6
        }
6
        }
7
        LegendItemCollection that = (LegendItemCollection
7
        DefaultStatisticalCategoryDataset that 
8
) obj;
8
                = (DefaultStatisticalCategoryDataset) obj;
9
        if (!this.items.equals(that.items)) {
9
        if (!this.data.equals(that.data)) {
10
            return false;
10
            return false;   
11
        }
11
        }
12
        return true;
12
        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)0.8
Clones locationClones are in different classes
Number of node comparisons25
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements7
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.7
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (obj == this)
    1
    if (obj == this)
    2
    return true;
    2
    return true;
    3
    if (!(obj instanceof LegendItemCollection))
    3
    if (!(obj instanceof LegendItemCollection))
    3
    if (!(obj instanceof DefaultStatisticalCategoryDataset))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.LegendItemCollectionorg.jfree.data.statistics.DefaultStatisticalCategoryDatasetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.LegendItemCollection does not match with type org.jfree.data.statistics.DefaultStatisticalCategoryDataset
    • Make classes org.jfree.chart.LegendItemCollection and org.jfree.data.statistics.DefaultStatisticalCategoryDataset extend a common superclass
    3
    if (!(obj instanceof DefaultStatisticalCategoryDataset))
    4
    return false;
    4
    return false;
                                                                                                                                                                      
    5
    DefaultStatisticalCategoryDataset that = (DefaultStatisticalCategoryDataset)obj;
    5
    LegendItemCollection that = (LegendItemCollection)obj;
                                                                                                                  
    6
    if (!this.items.equals(that.items))
    6
    if (!this.items.equals(that.items))
    6
    if (!this.data.equals(that.data))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.LegendItemCollectionorg.jfree.data.statistics.DefaultStatisticalCategoryDatasetVARIABLE_TYPE_MISMATCH
    itemsdataVARIABLE_NAME_MISMATCH
    java.util.Listorg.jfree.data.KeyedObjects2DVARIABLE_TYPE_MISMATCH
    itemsdataVARIABLE_NAME_MISMATCH
    java.util.Listorg.jfree.data.KeyedObjects2DVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.List of variable that.items does not match with type org.jfree.data.KeyedObjects2D of variable that.data
    • Make classes org.jfree.chart.LegendItemCollection and org.jfree.data.statistics.DefaultStatisticalCategoryDataset extend a common superclass
    Expression that.items cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.data cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.util.List of variable that.items does not match with type org.jfree.data.KeyedObjects2D of variable that.data
    • Make classes java.util.List and org.jfree.data.KeyedObjects2D extend a common superclass
    Type java.util.List of variable this.items does not match with type org.jfree.data.KeyedObjects2D of variable this.data
    • Make classes java.util.List and org.jfree.data.KeyedObjects2D extend a common superclass
    6
    if (!this.data.equals(that.data))
    7
    return false;
    7
    return false;
    8
    return true;
    8
    return true;
    Precondition Violations (7)
    Row Violation
    1Type org.jfree.chart.LegendItemCollection does not match with type org.jfree.data.statistics.DefaultStatisticalCategoryDataset
    2Type java.util.List of variable that.items does not match with type org.jfree.data.KeyedObjects2D of variable that.data
    3Expression that.items cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression that.data cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Type java.util.List of variable that.items does not match with type org.jfree.data.KeyedObjects2D of variable that.data
    6Type java.util.List of variable this.items does not match with type org.jfree.data.KeyedObjects2D of variable this.data
    7The refactoring of the clones is infeasible, because classes org.jfree.chart.LegendItemCollection and org.jfree.data.statistics.DefaultStatisticalCategoryDataset do not have a common superclass