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));
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)0.2
Clones locationClones are in different classes having the same super class
Number of node comparisons40
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements5
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment3
    Time elapsed for statement mapping (ms)96.2
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
                                                                                                                
    1
    LineAndShapeRenderer r1 = new LineAndShapeRenderer();
    Preondition Violations
    Unmatched statement LineAndShapeRenderer r1=new LineAndShapeRenderer(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    1
    LineAndShapeRenderer r1 = new LineAndShapeRenderer();
    1
    LegendItem item1 = new LegendItem("Item");
    1
    LegendItem item1 = new LegendItem("Item");
    Preondition Violations
    Unmatched statement LegendItem item1=new LegendItem("Item"); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                          
                                                                    
    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(item1 != item2);
    5
    assertTrue(item1 != item2);
    5
    assertTrue(r1 != r2);
    Differences
    Expression1Expression2Difference
    item1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.LegendItemorg.jfree.chart.renderer.category.LineAndShapeRendererVARIABLE_TYPE_MISMATCH
    item2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.LegendItemorg.jfree.chart.renderer.category.LineAndShapeRendererVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.LegendItem of variable item1 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r1
    • Make classes org.jfree.chart.LegendItem and org.jfree.chart.renderer.category.LineAndShapeRenderer extend a common superclass
    Type org.jfree.chart.LegendItem of variable item2 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r2
    • Make classes org.jfree.chart.LegendItem and org.jfree.chart.renderer.category.LineAndShapeRenderer extend a common superclass
    5
    assertTrue(r1 != r2);
    6
    assertTrue(item1.getClass() == item2.getClass());
    6
    assertTrue(item1.getClass() == item2.getClass());
    6
    assertTrue(r1.getClass() == r2.getClass());
    Differences
    Expression1Expression2Difference
    item1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.LegendItemorg.jfree.chart.renderer.category.LineAndShapeRendererVARIABLE_TYPE_MISMATCH
    item2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.LegendItemorg.jfree.chart.renderer.category.LineAndShapeRendererVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.LegendItem of variable item1 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r1
    • Make classes org.jfree.chart.LegendItem and org.jfree.chart.renderer.category.LineAndShapeRenderer extend a common superclass
    Type org.jfree.chart.LegendItem of variable item2 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r2
    • Make classes org.jfree.chart.LegendItem and org.jfree.chart.renderer.category.LineAndShapeRenderer extend a common superclass
    6
    assertTrue(r1.getClass() == r2.getClass());
    7
    assertTrue(item1.equals(item2));
    7
    assertTrue(item1.equals(item2));
    7
    assertTrue(r1.equals(r2));
    Differences
    Expression1Expression2Difference
    item2r2VARIABLE_NAME_MISMATCH
    org.jfree.chart.LegendItemorg.jfree.chart.renderer.category.LineAndShapeRendererVARIABLE_TYPE_MISMATCH
    item1r1VARIABLE_NAME_MISMATCH
    org.jfree.chart.LegendItemorg.jfree.chart.renderer.category.LineAndShapeRendererVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.chart.LegendItem of variable item2 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r2
    • Make classes org.jfree.chart.LegendItem and org.jfree.chart.renderer.category.LineAndShapeRenderer extend a common superclass
    Type org.jfree.chart.LegendItem of variable item1 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r1
    • Make classes org.jfree.chart.LegendItem and org.jfree.chart.renderer.category.LineAndShapeRenderer extend a common superclass
    7
    assertTrue(r1.equals(r2));
    8
    assertTrue(item1.getDataset() == item2.getDataset());
    8
    assertTrue(item1.getDataset() == item2.getDataset());
    8
    assertTrue(checkIndependence(r1, r2));
    Differences
    Expression1Expression2Difference
    item1.getDataset() == item2.getDataset()checkIndependence(r1,r2)TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression item1.getDataset() == item2.getDataset() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    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));
    Precondition Violations (12)
    Row Violation
    1Unmatched statement LineAndShapeRenderer r1=new LineAndShapeRenderer(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Unmatched statement LegendItem item1=new LegendItem("Item"); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched 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
    4Unmatched 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
    5Type org.jfree.chart.LegendItem of variable item1 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r1
    6Type org.jfree.chart.LegendItem of variable item2 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r2
    7Type org.jfree.chart.LegendItem of variable item1 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r1
    8Type org.jfree.chart.LegendItem of variable item2 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r2
    9Type org.jfree.chart.LegendItem of variable item2 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r2
    10Type org.jfree.chart.LegendItem of variable item1 does not match with type org.jfree.chart.renderer.category.LineAndShapeRenderer of variable r1
    11Expression item1.getDataset() == item2.getDataset() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    12Expression checkIndependence(r1,r2) cannot be parameterized, because it has dependencies to/from statements that will be extracted