if (obj == this) { return true; } if (!(obj instanceof TickUnit)) { return false; } TickUnit that = (TickUnit) obj; if (this.size != that.size) { return false; } if (this.minorTickCount != that.minorTickCount) { 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/axis/TickUnit.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 TickUnit)) {
4
        if (!(obj instanceof Hour)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        TickUnit that = (TickUnit) obj;
7
        Hour that = (Hour) obj;
8
        if (this.size != that.size) {
8
        if (this.hour != that.hour) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        if (this.minorTickCount != that.minorTickCount) {
11
        if (!this.day.equals(that.day)) {
12
            return false;
12
            return false;
13
        }
13
        }
14
        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)1.0
Clones locationClones are in different classes
Number of node comparisons26
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.5
    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 TickUnit))
    3
    if (!(obj instanceof TickUnit))
    3
    if (!(obj instanceof Hour))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.axis.TickUnitorg.jfree.data.time.HourVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.axis.TickUnit does not match with type org.jfree.data.time.Hour
    • Make classes org.jfree.chart.axis.TickUnit and org.jfree.data.time.Hour extend a common superclass
    3
    if (!(obj instanceof Hour))
    4
    return false;
    4
    return false;
                                                  
    5
    Hour that = (Hour)obj;
    5
    TickUnit that = (TickUnit)obj;
                                                                  
    6
    if (this.size != that.size)
    6
    if (this.size != that.size)
    6
    if (this.hour != that.hour)
    Differences
    Expression1Expression2Difference
    sizehourVARIABLE_NAME_MISMATCH
    doublebyteVARIABLE_TYPE_MISMATCH
    org.jfree.chart.axis.TickUnitorg.jfree.data.time.HourVARIABLE_TYPE_MISMATCH
    sizehourVARIABLE_NAME_MISMATCH
    doublebyteVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type double of variable this.size does not match with type byte of variable this.hour
    Type double of variable that.size does not match with type byte of variable that.hour
    • Make classes org.jfree.chart.axis.TickUnit and org.jfree.data.time.Hour extend a common superclass
    Expression that.size 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.size does not match with type byte of variable that.hour
    6
    if (this.hour != that.hour)
    7
    return false;
    7
    return false;
    Precondition Violations (8)
    Row Violation
    1Type org.jfree.chart.axis.TickUnit does not match with type org.jfree.data.time.Hour
    2Type double of variable this.size does not match with type byte of variable this.hour
    3Type double of variable that.size does not match with type byte of variable that.hour
    4Expression that.size cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Type double of variable that.size does not match with type byte of variable that.hour
    7Not all possible execution flows end in a return statement
    8The refactoring of the clones is infeasible, because classes org.jfree.chart.axis.TickUnit and org.jfree.data.time.Hour do not have a common superclass