229-3-5

LegendItem item1 = new LegendItem("Item"); LegendItem item2 = null; try { item2 = (LegendItem) item1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(item1 != item2); assertTrue(item1.getClass() == item2.getClass()); assertTrue(item1.equals(item2)); // the clone references the same dataset as the original assertTrue(item1.getDataset() == item2.getDataset());
LineAndShapeRenderer r1 = new LineAndShapeRenderer(); LineAndShapeRenderer r2 = null; try { r2 = (LineAndShapeRenderer) r1.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } assertTrue(r1 != r2); assertTrue(r1.getClass() == r2.getClass()); assertTrue(r1.equals(r2)); assertTrue(checkIndependence(r1, r2));

Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/tests/org/jfree/chart/junit/LegendItemTests.java |  | File path: /jfreechart-1.0.10/tests/org/jfree/chart/renderer/category/junit/LineAndShapeRendererTests.java
Method name: `void testCloning()` |  | Method name: `void testCloning()`
Number of AST nodes: 8 |  | Number of AST nodes: 8

1

    LegendItem item1 = new LegendItem("Item");↵

1

    L↵

2

            LegendItem item↵

2

    ineAndShapeRenderer r1 = new LineAndShapeRenderer();↵

3

    2 = null;↵

3

            LineAndShapeRenderer r2 = null;↵

4

            try {↵

4

            try {↵

5

                item2 = (LegendItem) item1.clone();↵

5

                r2 = (LineAndShapeRenderer) r1.clone();↵

6

            }↵

6

            }↵

7

            catch (CloneNotSupportedException e) {↵

7

            catch (CloneNotSupportedException e) {↵

8

                e.printStackTrace();↵

8

                e.printStackTrace();↵

9

            }↵

9

            }↵

10

            assertTrue(item1 != item2);↵

10

            assertTrue(r1 != r2);↵

11

            assertTrue(item1.getClass() == item2.getClass());↵

11

            assertTrue(r1.getClass() == r2.getClass());↵

12

            assertTrue(item1.equals(item2));↵

12

            assertTrue(r1.equals(r2));↵

13

            // the clone references the same dataset as the original↵

13

            ↵

14

            assertTrue(item1.getDataset() == item2.getDataset());

14

    assertTrue(checkIndependence(r1, r2));

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) | 0.1
Clones location | Clones are in different classes having the same super class
Number of node comparisons | 40

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 4
   Number of unmapped statements in the first code fragment | 4
   Number of unmapped statements in the second code fragment | 4
   Time elapsed for statement mapping (ms) | 25.3
   Clone type | Type 2

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

   1

       LineAndShapeRenderer r1 = new LineAndShapeRenderer();

   1

       LegendItem item1 = new LegendItem("Item");

   2

       LineAndShapeRenderer r2 = null;

   2

       LegendItem item2 = null;

   3

       try

   3

       try

   4 | r2 = (LineAndShapeRenderer)r1.clone();

   Preondition Violations
   Unmatched statement r2=(LineAndShapeRenderer)r1.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted

   4

       r2 = (LineAndShapeRenderer)r1.clone();

   4

       item2 = (LegendItem)item1.clone();

   4 | item2 = (LegendItem)item1.clone();

   Preondition Violations
   Unmatched statement item2=(LegendItem)item1.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted

   5

       assertTrue(r1 != r2);

   5

       assertTrue(item1 != item2);

   5 | assertTrue(item1 != item2);
   8 | assertTrue(checkIndependence(r1, r2));

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   item1 != item2 | checkIndependence(r1,r2) | TYPE_COMPATIBLE_REPLACEMENT

   Preondition Violations

   Expression checkIndependence(r1,r2) cannot be parameterized, because it has dependencies to/from statements that will be extracted
   - Inline private method checkIndependence

   8

       assertTrue(checkIndependence(r1, r2));

   6

       assertTrue(item1.getClass() == item2.getClass());

   6 | assertTrue(item1.getClass() == item2.getClass());
   7 | assertTrue(r1.equals(r2));

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   item1.getClass() == item2.getClass() | r1.equals(r2) | TYPE_COMPATIBLE_REPLACEMENT

   7

       assertTrue(r1.equals(r2));

   7

       assertTrue(item1.equals(item2));

   7 | assertTrue(item1.equals(item2));
   6 | assertTrue(r1.getClass() == r2.getClass());

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   item1.equals(item2) | r1.getClass() == r2.getClass() | TYPE_COMPATIBLE_REPLACEMENT

   6

       assertTrue(r1.getClass() == r2.getClass());

   8

       assertTrue(item1.getDataset() == item2.getDataset());

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Unmatched statement r2=(LineAndShapeRenderer)r1.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
   2 | Unmatched statement item2=(LegendItem)item1.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
   3 | Expression checkIndependence(r1,r2) cannot be parameterized, because it has dependencies to/from statements that will be extracted