if (obj == this) { return true; } if (obj instanceof StandardEntityCollection) { StandardEntityCollection that = (StandardEntityCollection) obj; return ObjectUtilities.equal(this.entities, that.entities); } return false;
if (obj == this) { return true; } if (!(obj instanceof DefaultMultiValueCategoryDataset)) { return false; } DefaultMultiValueCategoryDataset that = (DefaultMultiValueCategoryDataset) obj; return this.data.equals(that.data);
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/entity/StandardEntityCollection.java File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/DefaultMultiValueCategoryDataset.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 6 Number of AST nodes: 6
1
if (obj == this) {
1
if (obj == this) {
2
            return true;   
2
            return true;
3
        }
3
        }
4
        if (obj instanceof StandardEntityCollection) {
4
        if (!(obj instanceof 
5
            StandardEntityCollection that = (StandardEntityCollection) obj
5
DefaultMultiValueCategoryDataset)) {
6
;
6
            return false;
7
       
7
        }
8
     return ObjectUtilities.equal(this.entities, that.entities);
8
     
9
        }
10
        return false
9
   DefaultMultiValueCategoryDataset that 
10
                = (DefaultMultiValueCategoryDataset) obj;
11
;
11
        return this.data.equals(that.data);
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)0.3
Clones locationClones are in different classes
Number of node comparisons14
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements5
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)12.0
    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 StandardEntityCollection)
    3
    if (obj instanceof StandardEntityCollection)
    3
    if (!(obj instanceof DefaultMultiValueCategoryDataset))
    Differences
    Expression1Expression2Difference
    obj instanceof StandardEntityCollection!(obj instanceof DefaultMultiValueCategoryDataset)TYPE_COMPATIBLE_REPLACEMENT
    3
    if (!(obj instanceof DefaultMultiValueCategoryDataset))
    4
    StandardEntityCollection that = (StandardEntityCollection)obj;
    4
    StandardEntityCollection that = (StandardEntityCollection)obj;
    Preondition Violations
    Unmatched statement StandardEntityCollection that=(StandardEntityCollection)obj; cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                                                                  
    5
    return ObjectUtilities.equal(this.entities, that.entities);
    5
    return ObjectUtilities.equal(this.entities, that.entities);
    4
    return false;
    Differences
    Expression1Expression2Difference
    ObjectUtilities.equal(this.entities,that.entities)falseTYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression ObjectUtilities.equal(this.entities,that.entities) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4
    return false;
                                                                                                                                                                  
    5
    DefaultMultiValueCategoryDataset that = (DefaultMultiValueCategoryDataset)obj;
    6
    return false;
    6
    return false;
    6
    return this.data.equals(that.data);
    Differences
    Expression1Expression2Difference
    falsethis.data.equals(that.data)TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression this.data.equals(that.data) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6
    return this.data.equals(that.data);
    Precondition Violations (4)
    Row Violation
    1Unmatched statement StandardEntityCollection that=(StandardEntityCollection)obj; cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Expression ObjectUtilities.equal(this.entities,that.entities) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression this.data.equals(that.data) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4The refactoring of the clones is infeasible, because classes org.jfree.chart.entity.StandardEntityCollection and org.jfree.data.statistics.DefaultMultiValueCategoryDataset do not have a common superclass