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 ValueDataset) { ValueDataset vd = (ValueDataset) obj; return ObjectUtilities.equal(this.value, vd.getValue()); } return false;
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/general/DefaultValueDataset.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
5
ValueDataset) {
6
) obj;
6
            ValueDataset vd = (ValueDataset) obj;
7
            return ObjectUtilities.equal(this.entities, that.entities);
7
            return ObjectUtilities.equal(this.value, vd.getValue());
8
        }
8
        }
9
        return false;
9
        return false;
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)0.4
Clones locationClones are in different classes
Number of node comparisons16
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements4
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)1.3
    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 StandardEntityCollection)
    3
    if (obj instanceof StandardEntityCollection)
    3
    if (obj instanceof ValueDataset)
    Differences
    Expression1Expression2Difference
    org.jfree.chart.entity.StandardEntityCollectionorg.jfree.data.general.ValueDatasetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.entity.StandardEntityCollection does not match with type org.jfree.data.general.ValueDataset
    • Make classes org.jfree.chart.entity.StandardEntityCollection and org.jfree.data.general.ValueDataset extend a common superclass
    3
    if (obj instanceof ValueDataset)
                                                                              
    4
    ValueDataset vd = (ValueDataset)obj;
    Preondition Violations
    Unmatched statement ValueDataset vd=(ValueDataset)obj; cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4
    ValueDataset vd = (ValueDataset)obj;
    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.value, vd.getValue());
    Preondition Violations
    Unmatched return ObjectUtilities.equal(this.value,vd.getValue());
    5
    return ObjectUtilities.equal(this.value, vd.getValue());
    5
    return ObjectUtilities.equal(this.entities, that.entities);
    5
    return ObjectUtilities.equal(this.entities, that.entities);
    Preondition Violations
    Unmatched return ObjectUtilities.equal(this.entities,that.entities);
                                                                                                                              
    6
    return false;
    6
    return false;
    Precondition Violations (7)
    Row Violation
    1Type org.jfree.chart.entity.StandardEntityCollection does not match with type org.jfree.data.general.ValueDataset
    2Unmatched statement ValueDataset vd=(ValueDataset)obj; cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement StandardEntityCollection that=(StandardEntityCollection)obj; cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched return ObjectUtilities.equal(this.value,vd.getValue());
    5Unmatched return ObjectUtilities.equal(this.entities,that.entities);
    6Not all possible execution flows end in a return statement
    7The refactoring of the clones is infeasible, because classes org.jfree.chart.entity.StandardEntityCollection and org.jfree.data.general.DefaultValueDataset do not have a common superclass