if (obj == this) { return true; } if (obj instanceof XYItemEntity && super.equals(obj)) { XYItemEntity ie = (XYItemEntity) obj; if (this.series != ie.series) { return false; } if (this.item != ie.item) { return false; } return true; } return false;
if (obj == this) { return true; } if (!(obj instanceof Hour)) { return false; } Hour that = (Hour) obj; if (this.hour != that.hour) { return false; } if (!this.day.equals(that.day)) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/entity/XYItemEntity.java File path: /jfreechart-1.0.10/src/org/jfree/data/time/Hour.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 XYItemEntity && super.equals(obj)) {
4
        if (!(obj instanceof 
5
            XYItemEntity ie = (XYItemEntity
5
Hour)) {
6
            return false;
7
        }
6
) obj;
8
        Hour that = (Hour) obj;
7
            if (this.series != ie.series) {
9
        if (this.hour != that.hour) {
8
                return false;   
10
            return false;
9
    
10
        }
11
        }
11
            if (this.item != ie.item) {
12
        if (!this.day.equals(that.day)) {
12
                return false;   
13
            return false;
13
            }
14
        
14
    
15
}
15
        return true;
16
        return true;
16
        }
17
        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)0.7
Clones locationClones are in different classes
Number of node comparisons12
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.1
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    4
    XYItemEntity ie = (XYItemEntity)obj;
                                                                              
                                                  
    5
    Hour that = (Hour)obj;
    5
    if (this.series != ie.series)
    5
    if (this.series != ie.series)
    6
    if (this.hour != that.hour)
    Differences
    Expression1Expression2Difference
    serieshourVARIABLE_NAME_MISMATCH
    intbyteVARIABLE_TYPE_MISMATCH
    iethatVARIABLE_NAME_MISMATCH
    org.jfree.chart.entity.XYItemEntityorg.jfree.data.time.HourVARIABLE_TYPE_MISMATCH
    serieshourVARIABLE_NAME_MISMATCH
    intbyteVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type int of variable this.series does not match with type byte of variable this.hour
    Expression ie.series cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type int of variable ie.series does not match with type byte of variable that.hour
    • Make classes org.jfree.chart.entity.XYItemEntity and org.jfree.data.time.Hour extend a common superclass
    Expression ie.series cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type int of variable ie.series does not match with type byte of variable that.hour
    6
    if (this.hour != that.hour)
    6
    return false;
    7
    return false;
    Precondition Violations (8)
    Row Violation
    1Type int of variable this.series does not match with type byte of variable this.hour
    2Expression ie.series cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Type int of variable ie.series does not match with type byte of variable that.hour
    5Expression ie.series cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Type int of variable ie.series does not match with type byte of variable that.hour
    8Not all possible execution flows end in a return statement