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;
if (obj == this) { return true; } if (!(obj instanceof XYCoordinate)) { return false; } XYCoordinate that = (XYCoordinate) obj; if (this.x != that.x) { return false; } if (this.y != that.y) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/data/time/Hour.java File path: /jfreechart-1.0.10/src/org/jfree/data/xy/XYCoordinate.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 Hour)) {
4
        if (!(obj instanceof XYCoordinate)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        Hour that = (Hour) obj;
7
        XYCoordinate that = (XYCoordinate) obj;
8
        if (this.hour != that.hour) {
8
        if (this.x != that.x) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        if (!this.day.equals(that.day)) {
11
        if (this.y != that.y) {
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 Hour))
    3
    if (!(obj instanceof Hour))
    3
    if (!(obj instanceof XYCoordinate))
    Differences
    Expression1Expression2Difference
    org.jfree.data.time.Hourorg.jfree.data.xy.XYCoordinateVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.time.Hour does not match with type org.jfree.data.xy.XYCoordinate
    • Make classes org.jfree.data.time.Hour and org.jfree.data.xy.XYCoordinate extend a common superclass
    3
    if (!(obj instanceof XYCoordinate))
    4
    return false;
    4
    return false;
                                                                                  
    5
    XYCoordinate that = (XYCoordinate)obj;
    5
    Hour that = (Hour)obj;
                                                  
    6
    if (this.hour != that.hour)
    6
    if (this.hour != that.hour)
    6
    if (this.x != that.x)
    Differences
    Expression1Expression2Difference
    hourxVARIABLE_NAME_MISMATCH
    bytedoubleVARIABLE_TYPE_MISMATCH
    org.jfree.data.time.Hourorg.jfree.data.xy.XYCoordinateVARIABLE_TYPE_MISMATCH
    hourxVARIABLE_NAME_MISMATCH
    bytedoubleVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type byte of variable this.hour does not match with type double of variable this.x
    Type byte of variable that.hour does not match with type double of variable that.x
    • Make classes org.jfree.data.time.Hour and org.jfree.data.xy.XYCoordinate extend a common superclass
    Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.x cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type byte of variable that.hour does not match with type double of variable that.x
    6
    if (this.x != that.x)
    7
    return false;
    7
    return false;
    Precondition Violations (8)
    Row Violation
    1Type org.jfree.data.time.Hour does not match with type org.jfree.data.xy.XYCoordinate
    2Type byte of variable this.hour does not match with type double of variable this.x
    3Type byte of variable that.hour does not match with type double of variable that.x
    4Expression that.hour cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Expression that.x cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Type byte of variable that.hour does not match with type double of variable that.x
    7Not all possible execution flows end in a return statement
    8The refactoring of the clones is infeasible, because classes org.jfree.data.time.Hour and org.jfree.data.xy.XYCoordinate do not have a common superclass