if (obj == this) { return true; } if (!super.equals(obj)) { return false; } if (!(obj instanceof ValueMarker)) { return false; } ValueMarker that = (ValueMarker) obj; if (this.value != that.value) { return false; } return true;
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/plot/ValueMarker.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 (!super.equals(obj)) {
4
        if (!(obj instanceof Hour)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        if (!(obj instanceof ValueMarker)
7
        Hour that = (Hour) obj;
8
) {
8
        if (this.hour != that.hour) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        ValueMarker that = (ValueMarker) obj;
12
        if (this.value != that.value) {
11
        if (!this.day.equals(that.day)) {
13
            return false;
12
            return false;
14
        }
13
        }
15
        return true;
14
        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)0.9
Clones locationClones are in different classes
Number of node comparisons35
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements9
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)6.1
    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 (!super.equals(obj))
    3
    if (!super.equals(obj))
    3
    if (!(obj instanceof Hour))
    Differences
    Expression1Expression2Difference
    super.equals(obj)(obj instanceof Hour)TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Super method call if(!super.equals(obj)) cannot be extracted from method
    3
    if (!(obj instanceof Hour))
    4
    return false;
    4
    return false;
                                                  
    5
    Hour that = (Hour)obj;
    5
    if (!(obj instanceof ValueMarker))
    5
    if (!(obj instanceof ValueMarker))
    8
    if (!this.day.equals(that.day))
    Differences
    Expression1Expression2Difference
    (obj instanceof ValueMarker)this.day.equals(that.day)TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression this.day.equals(that.day) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8
    if (!this.day.equals(that.day))
    6
    return false;
    9
    return false;
    7
    ValueMarker that = (ValueMarker)obj;
                                                                              
    8
    if (this.value != that.value)
    8
    if (this.value != that.value)
    6
    if (this.hour != that.hour)
    Differences
    Expression1Expression2Difference
    valuehourVARIABLE_NAME_MISMATCH
    doublebyteVARIABLE_TYPE_MISMATCH
    org.jfree.chart.plot.ValueMarkerorg.jfree.data.time.HourVARIABLE_TYPE_MISMATCH
    valuehourVARIABLE_NAME_MISMATCH
    doublebyteVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type double of variable this.value does not match with type byte of variable this.hour
    Type double of variable that.value does not match with type byte of variable that.hour
    • Make classes org.jfree.chart.plot.ValueMarker and org.jfree.data.time.Hour extend a common superclass
    Expression that.value 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 double of variable that.value does not match with type byte of variable that.hour
    6
    if (this.hour != that.hour)
    9
    return false;
    7
    return false;
    10
    return true;
    10
    return true;
    Precondition Violations (8)
    Row Violation
    1Super method call if(!super.equals(obj)) cannot be extracted from method
    2Expression this.day.equals(that.day) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Type double of variable this.value does not match with type byte of variable this.hour
    4Type double of variable that.value does not match with type byte of variable that.hour
    5Expression that.value 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 double of variable that.value does not match with type byte of variable that.hour
    8The refactoring of the clones is infeasible, because classes org.jfree.chart.plot.ValueMarker and org.jfree.data.time.Hour do not have a common superclass