if (obj == this) { return true; } if (!(obj instanceof XYAreaRenderer2)) { return false; } XYAreaRenderer2 that = (XYAreaRenderer2) obj; if (this.showOutline != that.showOutline) { return false; } if (!ShapeUtilities.equal(this.legendArea, that.legendArea)) { return false; } return super.equals(obj);
if (obj == this) { return true; } if (!(obj instanceof KeyedObject)) { return false; } KeyedObject that = (KeyedObject) obj; if (!ObjectUtilities.equal(this.key, that.key)) { return false; } if (!ObjectUtilities.equal(this.object, that.object)) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/renderer/xy/XYAreaRenderer2.java File path: /jfreechart-1.0.10/src/org/jfree/data/KeyedObject.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 XYAreaRenderer2)) {
4
        if (!(obj instanceof KeyedObject)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        XYAreaRenderer2 that = (XYAreaRenderer2) obj;
7
        
8
        if (this.showOutline != that.showOutline
8
KeyedObject that = (KeyedObject) obj;
9
) {
9
        if (!ObjectUtilities.equal(this.key, that.key)) {
10
            return false;
10
            return false;
11
        }
11
        }
12
        if (!ShapeUtilities.equal(this.legendArea, that.legendArea)) {
12
        if (!ObjectUtilities.equal(this.object, that.object)) {
13
            return false;
13
            return false;
14
        }
14
        }
15
        return super.equals(obj);
15
        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)1.3
Clones locationClones are in different classes
Number of node comparisons29
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements7
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)2.5
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (obj == this)
    1
    if (obj == this)
    2
    return true;
    2
    return true;
    3
    if (!(obj instanceof XYAreaRenderer2))
    3
    if (!(obj instanceof XYAreaRenderer2))
    3
    if (!(obj instanceof KeyedObject))
    Differences
    Expression1Expression2Difference
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.KeyedObjectSUBCLASS_TYPE_MISMATCH
    3
    if (!(obj instanceof KeyedObject))
    4
    return false;
    4
    return false;
    5
    XYAreaRenderer2 that = (XYAreaRenderer2)obj;
    5
    XYAreaRenderer2 that = (XYAreaRenderer2)obj;
    5
    KeyedObject that = (KeyedObject)obj;
    Differences
    Expression1Expression2Difference
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.KeyedObjectSUBCLASS_TYPE_MISMATCH
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.KeyedObjectSUBCLASS_TYPE_MISMATCH
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.KeyedObjectSUBCLASS_TYPE_MISMATCH
    5
    KeyedObject that = (KeyedObject)obj;
    6
    if (this.showOutline != that.showOutline)
    6
    if (this.showOutline != that.showOutline)
    Preondition Violations
    Unmatched statement if(this.showOutline != that.showOutline) cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                                          
    7
    return false;
    7
    return false;
    Preondition Violations
    Unmatched return false;
                                    
    8
    if (!ShapeUtilities.equal(this.legendArea, that.legendArea))
    8
    if (!ShapeUtilities.equal(this.legendArea, that.legendArea))
    6
    if (!ObjectUtilities.equal(this.key, that.key))
    Differences
    Expression1Expression2Difference
    legendAreakeyVARIABLE_NAME_MISMATCH
    java.awt.Shapejava.lang.ComparableVARIABLE_TYPE_MISMATCH
    org.jfree.chart.renderer.xy.XYAreaRenderer2org.jfree.data.KeyedObjectSUBCLASS_TYPE_MISMATCH
    legendAreakeyVARIABLE_NAME_MISMATCH
    java.awt.Shapejava.lang.ComparableVARIABLE_TYPE_MISMATCH
    org.jfree.util.ShapeUtilitiesorg.jfree.util.ObjectUtilitiesVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.awt.Shape of variable this.legendArea does not match with type java.lang.Comparable of variable this.key
    • Make classes java.awt.Shape and java.lang.Comparable extend a common superclass
    Expression that.legendArea cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.key cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.awt.Shape of variable that.legendArea does not match with type java.lang.Comparable of variable that.key
    • Make classes java.awt.Shape and java.lang.Comparable extend a common superclass
    Type org.jfree.util.ShapeUtilities does not match with type org.jfree.util.ObjectUtilities
    • Make classes org.jfree.util.ShapeUtilities and org.jfree.util.ObjectUtilities extend a common superclass
    6
    if (!ObjectUtilities.equal(this.key, that.key))
    9
    return false;
    7
    return false;
    Precondition Violations (10)
    Row Violation
    1Unmatched statement if(this.showOutline != that.showOutline) cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2Unmatched return false;
    3Type java.awt.Shape of variable this.legendArea does not match with type java.lang.Comparable of variable this.key
    4Expression that.legendArea cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Expression that.key cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Type java.awt.Shape of variable that.legendArea does not match with type java.lang.Comparable of variable that.key
    7Type org.jfree.util.ShapeUtilities does not match with type org.jfree.util.ObjectUtilities
    8Clone fragment #1 returns variable that with type org.jfree.chart.renderer.xy.XYAreaRenderer2 , while Clone fragment #2 returns variable that with type org.jfree.data.KeyedObject
    9Not all possible execution flows end in a return statement
    10The refactoring of the clones is infeasible, because classes org.jfree.chart.renderer.xy.XYAreaRenderer2 and org.jfree.data.KeyedObject do not have a common superclass