if (obj == this) { return true; } if (!(obj instanceof ComparableObjectItem)) { return false; } ComparableObjectItem that = (ComparableObjectItem) obj; if (!this.x.equals(that.x)) { return false; } if (!ObjectUtilities.equal(this.obj, that.obj)) { return false; } return true;
if (obj == this) { return true; } if (!(obj instanceof XYDataItem)) { return false; } XYDataItem that = (XYDataItem) obj; if (!this.x.equals(that.x)) { return false; } if (!ObjectUtilities.equal(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/ComparableObjectItem.java File path: /jfreechart-1.0.10/src/org/jfree/data/xy/XYDataItem.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 ComparableObjectItem)) {
4
        if (!(obj instanceof XYDataItem)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        ComparableObjectItem that = (ComparableObjectItem) obj;
7
        XYDataItem that = (XYDataItem) obj;
8
        if (!this.x.equals(that.x)) {
8
        if (!this.x.equals(that.x)) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        if (!ObjectUtilities.equal(this.obj, that.obj)) {
11
        if (!ObjectUtilities.equal(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)1.1
Clones locationClones are in different classes
Number of node comparisons41
  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)2.1
    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 (!(obj instanceof ComparableObjectItem))
    3
    if (!(obj instanceof ComparableObjectItem))
    3
    if (!(obj instanceof XYDataItem))
    Differences
    Expression1Expression2Difference
    org.jfree.data.ComparableObjectItemorg.jfree.data.xy.XYDataItemVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.ComparableObjectItem does not match with type org.jfree.data.xy.XYDataItem
    • Make classes org.jfree.data.ComparableObjectItem and org.jfree.data.xy.XYDataItem extend a common superclass
    3
    if (!(obj instanceof XYDataItem))
    4
    return false;
    4
    return false;
                                                                          
    5
    XYDataItem that = (XYDataItem)obj;
    5
    ComparableObjectItem that = (ComparableObjectItem)obj;
                                                                                                                  
    6
    if (!this.x.equals(that.x))
    6
    if (!this.x.equals(that.x))
    6
    if (!this.x.equals(that.x))
    Differences
    Expression1Expression2Difference
    org.jfree.data.ComparableObjectItemorg.jfree.data.xy.XYDataItemVARIABLE_TYPE_MISMATCH
    java.lang.Comparablejava.lang.NumberVARIABLE_TYPE_MISMATCH
    java.lang.Comparablejava.lang.NumberVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Comparable of variable that.x does not match with type java.lang.Number of variable that.x
    • Make classes org.jfree.data.ComparableObjectItem and org.jfree.data.xy.XYDataItem extend a common superclass
    Expression that.x 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 java.lang.Comparable of variable that.x does not match with type java.lang.Number of variable that.x
    • Make classes java.lang.Comparable and java.lang.Number extend a common superclass
    Type java.lang.Comparable of variable this.x does not match with type java.lang.Number of variable this.x
    • Make classes java.lang.Comparable and java.lang.Number extend a common superclass
    6
    if (!this.x.equals(that.x))
    7
    return false;
    7
    return false;
    8
    if (!ObjectUtilities.equal(this.obj, that.obj))
    8
    if (!ObjectUtilities.equal(this.obj, that.obj))
    8
    if (!ObjectUtilities.equal(this.y, that.y))
    Differences
    Expression1Expression2Difference
    objyVARIABLE_NAME_MISMATCH
    java.lang.Objectjava.lang.NumberVARIABLE_TYPE_MISMATCH
    org.jfree.data.ComparableObjectItemorg.jfree.data.xy.XYDataItemVARIABLE_TYPE_MISMATCH
    objyVARIABLE_NAME_MISMATCH
    java.lang.Objectjava.lang.NumberVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Object of variable this.obj does not match with type java.lang.Number of variable this.y
    • Make classes java.lang.Object and java.lang.Number extend a common superclass
    Type java.lang.Object of variable that.obj does not match with type java.lang.Number of variable that.y
    • Make classes org.jfree.data.ComparableObjectItem and org.jfree.data.xy.XYDataItem extend a common superclass
    Expression that.obj cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.y cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.lang.Object of variable that.obj does not match with type java.lang.Number of variable that.y
    • Make classes java.lang.Object and java.lang.Number extend a common superclass
    8
    if (!ObjectUtilities.equal(this.y, that.y))
    9
    return false;
    9
    return false;
    10
    return true;
    10
    return true;
    Precondition Violations (11)
    Row Violation
    1Type org.jfree.data.ComparableObjectItem does not match with type org.jfree.data.xy.XYDataItem
    2Type java.lang.Comparable of variable that.x does not match with type java.lang.Number of variable that.x
    3Expression that.x cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression that.x cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Type java.lang.Comparable of variable that.x does not match with type java.lang.Number of variable that.x
    6Type java.lang.Comparable of variable this.x does not match with type java.lang.Number of variable this.x
    7Type java.lang.Object of variable this.obj does not match with type java.lang.Number of variable this.y
    8Type java.lang.Object of variable that.obj does not match with type java.lang.Number of variable that.y
    9Expression that.obj cannot be parameterized, because it has dependencies to/from statements that will be extracted
    10Expression that.y cannot be parameterized, because it has dependencies to/from statements that will be extracted
    11Type java.lang.Object of variable that.obj does not match with type java.lang.Number of variable that.y