for (int item = 0; item < urlCount; item++) { String u1 = getURL(series, item); String u2 = generator.getURL(series, item); if (u1 != null) { if (!u1.equals(u2)) { return false; } } else { if (u2 != null) { return false; } } }
for (int c = 0; c < colCount; c++) { 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; } } }
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/chart/urls/CustomCategoryURLGenerator.java File path: /jfreechart-1.0.10/src/org/jfree/data/DefaultKeyedValues2D.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 8 Number of AST nodes: 8
1
for (int item = 0; item < urlCount; item++) {
1
for (int c = 0; c < colCount; c++) {
2
                String u1 = getURL(series, item);
2
                
3
                String u2 = generator.getURL(series, item
3
Number v1 = getValue(r, c);
4
);
4
                Number v2 = kv2D.getValue(r, c);
5
                if (u1 != null) {
5
                if (v1 == null) {
6
                    if (!u1.equals(u2)) {
6
                    if (v2 != null) {
7
                        return false;
7
                        return false;
8
                    }
8
                    }
9
                }
9
                }
10
 else {
10
                else {
11
                    if (u2 != null) {
11
                    if (!v1.equals(v2)) {
12
                        return false;
12
                        return false;
13
                    }
13
                    }
14
                }
14
                }
15
            }
15
            }
Summary
Number of common nesting structure subtrees2
Number of refactorable cases0
Number of non-refactorable cases2
Time elapsed for finding largest common nesting structure subtrees (ms)0.5
Clones locationClones are in different classes
Number of node comparisons11
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.1
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    17
    if (!u1.equals(u2))
    17
    if (!u1.equals(u2))
    25
    if (!v1.equals(v2))
    Differences
    Expression1Expression2Difference
    u2v2VARIABLE_NAME_MISMATCH
    java.lang.Stringjava.lang.NumberVARIABLE_TYPE_MISMATCH
    u1v1VARIABLE_NAME_MISMATCH
    java.lang.Stringjava.lang.NumberVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable u2 does not match with type java.lang.Number of variable v2
    • Make classes java.lang.String and java.lang.Number extend a common superclass
    Type java.lang.String of variable u1 does not match with type java.lang.Number of variable v1
    • Make classes java.lang.String and java.lang.Number extend a common superclass
    25
    if (!v1.equals(v2))
    18
    return false;
    26
    return false;
    Precondition Violations (3)
    Row Violation
    1Type java.lang.String of variable u2 does not match with type java.lang.Number of variable v2
    2Type java.lang.String of variable u1 does not match with type java.lang.Number of variable v1
    3Not all possible execution flows end in a return statement
  2. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    19
    if (u2 != null)
    19
    if (u2 != null)
    23
    if (v2 != null)
    Differences
    Expression1Expression2Difference
    u2v2VARIABLE_NAME_MISMATCH
    java.lang.Stringjava.lang.NumberVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable u2 does not match with type java.lang.Number of variable v2
    • Make classes java.lang.String and java.lang.Number extend a common superclass
    23
    if (v2 != null)
    20
    return false;
    24
    return false;
    Precondition Violations (2)
    Row Violation
    1Type java.lang.String of variable u2 does not match with type java.lang.Number of variable v2
    2Not all possible execution flows end in a return statement