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 XYBarDataset)) { return false; } XYBarDataset that = (XYBarDataset) obj; if (!this.underlying.equals(that.underlying)) { return false; } if (this.barWidth != that.barWidth) { return false; } return true;
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/data/xy/XYBarDataset.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 10 Number of AST nodes: 10
1
if (obj == null) {
1
if (obj == this) {
2
            return false;   
2
            return true;
3
        }
3
        }
4
        
5
        if (obj == this) {
4
        if (!(obj instanceof XYBarDataset)) {
6
            return true;
5
            return false;
7
        }
6
        }
8
        
7
        
9
        if (!(obj instanceof HistogramType)) {
10
            return false;
11
        }
12
        
13
        HistogramType t = (HistogramType) obj;
14
        if (!this.name.equals(t.name)
8
XYBarDataset that = (XYBarDataset) obj;
9
        if (!this.underlying.equals(that.underlying)) {
10
            return false;
11
        }
15
) {
12
        if (this.barWidth != that.barWidth) {
16
            return false;
13
            return false;
17
        }
14
        }
18
        
19
        return true;
15
        return true;
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)1.1
Clones locationClones are in different classes
Number of node comparisons29
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.8
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (obj == null)
    1
    if (obj == null)
    1
    if (obj == this)
    Differences
    Expression1Expression2Difference
    nullthisTYPE_COMPATIBLE_REPLACEMENT
    1
    if (obj == this)
    2
    return false;
    2
    return false;
    2
    return true;
    Differences
    Expression1Expression2Difference
    falsetrueLITERAL_VALUE_MISMATCH
    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 XYBarDataset))
    Differences
    Expression1Expression2Difference
    org.jfree.data.statistics.HistogramTypeorg.jfree.data.xy.XYBarDatasetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jfree.data.statistics.HistogramType does not match with type org.jfree.data.xy.XYBarDataset
    • Make classes org.jfree.data.statistics.HistogramType and org.jfree.data.xy.XYBarDataset extend a common superclass
    3
    if (!(obj instanceof XYBarDataset))
    6
    return false;
    4
    return false;
                                                                                  
    5
    XYBarDataset that = (XYBarDataset)obj;
    7
    HistogramType t = (HistogramType)obj;
                                                                                
    8
    if (!this.name.equals(t.name))
    8
    if (!this.name.equals(t.name))
    6
    if (!this.underlying.equals(that.underlying))
    Differences
    Expression1Expression2Difference
    tthatVARIABLE_NAME_MISMATCH
    org.jfree.data.statistics.HistogramTypeorg.jfree.data.xy.XYBarDatasetVARIABLE_TYPE_MISMATCH
    nameunderlyingVARIABLE_NAME_MISMATCH
    java.lang.Stringorg.jfree.data.xy.XYDatasetVARIABLE_TYPE_MISMATCH
    nameunderlyingVARIABLE_NAME_MISMATCH
    java.lang.Stringorg.jfree.data.xy.XYDatasetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Expression t.name cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.underlying cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.lang.String of variable t.name does not match with type org.jfree.data.xy.XYDataset of variable that.underlying
    • Make classes org.jfree.data.statistics.HistogramType and org.jfree.data.xy.XYBarDataset extend a common superclass
    Expression t.name cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.underlying cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.lang.String of variable t.name does not match with type org.jfree.data.xy.XYDataset of variable that.underlying
    • Make classes java.lang.String and org.jfree.data.xy.XYDataset extend a common superclass
    Type java.lang.String of variable this.name does not match with type org.jfree.data.xy.XYDataset of variable this.underlying
    • Make classes java.lang.String and org.jfree.data.xy.XYDataset extend a common superclass
    6
    if (!this.underlying.equals(that.underlying))
    9
    return false;
    7
    return false;
    Precondition Violations (10)
    Row Violation
    1Unmatched return true;
    2Type org.jfree.data.statistics.HistogramType does not match with type org.jfree.data.xy.XYBarDataset
    3Expression t.name cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression that.underlying cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Type java.lang.String of variable t.name does not match with type org.jfree.data.xy.XYDataset of variable that.underlying
    6Expression t.name cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Expression that.underlying cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8Type java.lang.String of variable t.name does not match with type org.jfree.data.xy.XYDataset of variable that.underlying
    9Type java.lang.String of variable this.name does not match with type org.jfree.data.xy.XYDataset of variable this.underlying
    10Not all possible execution flows end in a return statement