43-108-131

if (obj == null) { return false; } if (obj == this) { return true; } if (!(obj instanceof HistogramType)) { return false; } HistogramType t = (HistogramType) obj; if (!this.name.equals(t.name)) { return false; } return true;
if (obj == this) { return true; } if (!(obj instanceof ImageTitle)) { return false; } ImageTitle that = (ImageTitle) obj; if (!ObjectUtilities.equal(this.image, that.image)) { return false; } return super.equals(obj);

Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/HistogramType.java |  | File path: /jfreechart-1.0.10/src/org/jfree/chart/title/ImageTitle.java
Method name: `boolean equals(Object)` |  | Method name: `boolean equals(Object)`
Number of AST nodes: 10 |  | Number of AST nodes: 8

1

    if (obj == null) {↵

2

                return false;   ↵

3

            }↵

4

            ↵

5

            if (obj == this) {↵

1

    if (obj == this) {↵

6

                return true;↵

2

                return true;↵

7

            }↵

3

            }↵

8

            ↵

9

            if (!(obj instanceof HistogramType)) {↵

4

            if (!(obj instanceof ImageTitle)) {↵

10

                return false;↵

5

                return false;↵

11

            }↵

6

            }↵

12

            ↵

7

            ↵

13

            HistogramType t = (HistogramType) obj;↵

8

    ImageTitle that = (ImageTitle) obj;↵

14

            if (!this.name.equals(t.name)) {↵

9

            if (!ObjectUtilities.equal(this.image, that.image)) {↵

15

                return false;↵

10

                return false;↵

16

            }↵

11

            }↵

17

            ↵

12

            ↵

18

            return true;

13

    return super.equals(obj);

See real code fragment |  | See real code fragment

Summary
Number of common nesting structure subtrees | 1
Number of refactorable cases | 0
Number of non-refactorable cases | 1
Time elapsed for finding largest common nesting structure subtrees (ms) | 0.4
Clones location | Clones are in different classes
Number of node comparisons | 21

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 4
   Number of unmapped statements in the first code fragment | 2
   Number of unmapped statements in the second code fragment | 0
   Time elapsed for statement mapping (ms) | 0.4
   Clone type | Type 3

   Mapped Statements
   ID | Statement |  | ID | Statement
   --- | --- | --- | --- | ---

   1

       if (obj == null)

   1 | if (obj == null)
   1 | if (obj == this)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   null | this | TYPE_COMPATIBLE_REPLACEMENT

   1

       if (obj == this)

   2

       return false;

   2 | return false;
   2 | return true;

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   false | true | LITERAL_VALUE_MISMATCH

   Preondition Violations
   Conditional return false;
   Conditional return true;

   2

       return true;

   3

       if (obj == this)

   4

       return true;

   4 | return true;

   Preondition Violations
   Unmatched return true;

   5

       if (!(obj instanceof HistogramType))

   5 | if (!(obj instanceof HistogramType))
   3 | if (!(obj instanceof ImageTitle))

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   org.jfree.data.statistics.HistogramType | org.jfree.chart.title.ImageTitle | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type boolean of variable obj instanceof HistogramType does not match with type boolean of variable obj instanceof ImageTitle
   - Make classes org.jfree.data.statistics.HistogramType and org.jfree.chart.title.ImageTitle extend a common superclass

   3

       if (!(obj instanceof ImageTitle))

   6

       return false;

   6 | return false;
   4 | return false;

   Preondition Violations
   Conditional return false;
   Conditional return false;

   4

       return false;

   Precondition Violations (6)
   Row | Violation
   --- | ---
   1 | Unmatched return true;
   2 | Type boolean of variable obj instanceof HistogramType does not match with type boolean of variable obj instanceof ImageTitle
   3 | Conditional return false;
   4 | Conditional return true;
   5 | Conditional return false;
   6 | Conditional return false;