Number v1 = getValue(r, c); Number v2 = kv2D.getValue(r, c); if (v1 == null) { if (v2 != null) { return false; } } else { if (!v1.equals(v2)) { return false; } }
Object v1 = getObject(r, c); Object v2 = that.getObject(r, c); if (v1 == null) { if (v2 != null) { return false; } } else { if (!v1.equals(v2)) { return false; } }
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/data/DefaultKeyedValues2D.java File path: /jfreechart-1.0.10/src/org/jfree/data/KeyedObjects2D.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 7 Number of AST nodes: 7
1
Number v1 = getValue(r, c);
1
Object v1 = getObject(r, c);
2
                Number v2 = kv2D.getValue(r, c);
2
                Object v2 = that.getObject(r, c);
3
                if (v1 == null) {
3
                if (v1 == null) {
4
                    if (v2 != null) {
4
                    if (v2 != null) {
5
                        return false;
5
                        return false;
6
                    }
6
                    }
7
                }
7
                }
8
                else {
8
                else {
9
                    if (!v1.equals(v2)) {
9
                    if (!v1.equals(v2)) {
10
                        return false;
10
                        return false;
11
                    }
11
                    }
12
                }
12
                }
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)0.4
Clones locationClones are in different classes
Number of node comparisons16
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements5
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)1.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
                                                              
    18
    Object v1 = getObject(r, c);
    Preondition Violations
    Unmatched statement Object v1=getObject(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    18
    Object v1 = getObject(r, c);
                                                                        
    19
    Object v2 = that.getObject(r, c);
    Preondition Violations
    Unmatched statement Object v2=that.getObject(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    19
    Object v2 = that.getObject(r, c);
    20
    Number v1 = getValue(r, c);
    20
    Number v1 = getValue(r, c);
    Preondition Violations
    Unmatched statement Number v1=getValue(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                            
    21
    Number v2 = kv2D.getValue(r, c);
    21
    Number v2 = kv2D.getValue(r, c);
    Preondition Violations
    Unmatched statement Number v2=kv2D.getValue(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                      
    22
    if (v1 == null)
    22
    if (v1 == null)
    20
    if (v1 == null)
    Differences
    Expression1Expression2Difference
    java.lang.Numberjava.lang.ObjectVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Number of variable v1 does not match with type java.lang.Object of variable v1
    • Make classes java.lang.Number and java.lang.Object extend a common superclass
    20
    if (v1 == null)
    23
    if (v2 != null)
    23
    if (v2 != null)
    21
    if (v2 != null)
    Differences
    Expression1Expression2Difference
    java.lang.Numberjava.lang.ObjectVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Number of variable v2 does not match with type java.lang.Object of variable v2
    • Make classes java.lang.Number and java.lang.Object extend a common superclass
    21
    if (v2 != null)
    24
    return false;
    22
    return false;
    else
    else
    25
    if (!v1.equals(v2))
    25
    if (!v1.equals(v2))
    23
    if (!v1.equals(v2))
    Differences
    Expression1Expression2Difference
    java.lang.Numberjava.lang.ObjectVARIABLE_TYPE_MISMATCH
    java.lang.Numberjava.lang.ObjectVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Number of variable v2 does not match with type java.lang.Object of variable v2
    • Make classes java.lang.Number and java.lang.Object extend a common superclass
    Type java.lang.Number of variable v1 does not match with type java.lang.Object of variable v1
    • Make classes java.lang.Number and java.lang.Object extend a common superclass
    23
    if (!v1.equals(v2))
    26
    return false;
    24
    return false;
    Precondition Violations (9)
    Row Violation
    1Unmatched statement Object v1=getObject(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2Unmatched statement Object v2=that.getObject(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    3Unmatched statement Number v1=getValue(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched statement Number v2=kv2D.getValue(r,c); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    5Type java.lang.Number of variable v1 does not match with type java.lang.Object of variable v1
    6Type java.lang.Number of variable v2 does not match with type java.lang.Object of variable v2
    7Type java.lang.Number of variable v2 does not match with type java.lang.Object of variable v2
    8Type java.lang.Number of variable v1 does not match with type java.lang.Object of variable v1
    9Not all possible execution flows end in a return statement