if (obj == this) { return true; } if (!(obj instanceof KeyedObject)) { return false; } KeyedObject that = (KeyedObject) obj; if (!ObjectUtilities.equal(this.key, that.key)) { return false; } if (!ObjectUtilities.equal(this.object, that.object)) { return false; } return true;
if (obj == this) { return true; } if (!(obj instanceof HistogramDataset)) { return false; } HistogramDataset that = (HistogramDataset) obj; if (!ObjectUtilities.equal(this.type, that.type)) { return false; } if (!ObjectUtilities.equal(this.list, that.list)) { return false; } return true;
Clone fragments detected by clone detection tool
File path: /jfreechart-1.0.10/src/org/jfree/data/KeyedObject.java File path: /jfreechart-1.0.10/src/org/jfree/data/statistics/HistogramDataset.java
Method name: boolean equals(Object) Method name: boolean equals(Object)
Number of AST nodes: 10 Number of AST nodes: 10
1
if (obj == this) {
1
if (obj == this) {
2
            return true;
2
            return true;
3
        }
3
        }
4
        if (!(obj instanceof KeyedObject)) {
4
        if (!(obj instanceof HistogramDataset)) {
5
            return false;
5
            return false;
6
        }
6
        }
7
        KeyedObject that = (KeyedObject) obj;
7
        HistogramDataset that = (HistogramDataset) obj;
8
        if (!ObjectUtilities.equal(this.key, that.key)) {
8
        if (!ObjectUtilities.equal(this.type, that.type)) {
9
            return false;
9
            return false;
10
        }
10
        }
11
        if (!ObjectUtilities.equal(this.object, that.object)) {
11
        if (!ObjectUtilities.equal(this.list, that.list)) {
12
            return false;
12
            return false;
13
        }
13
        }
14
        return true;
14
        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)2.0
Clones locationClones are in different classes
Number of node comparisons41
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements10
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)3.2
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (obj == this)
    1
    if (obj == this)
    2
    return true;
    2
    return true;
    3
    if (!(obj instanceof KeyedObject))
    3
    if (!(obj instanceof KeyedObject))
    3
    if (!(obj instanceof HistogramDataset))
    Differences
    Expression1Expression2Difference
    org.jfree.data.KeyedObjectorg.jfree.data.statistics.HistogramDatasetSUBCLASS_TYPE_MISMATCH
    3
    if (!(obj instanceof HistogramDataset))
    4
    return false;
    4
    return false;
    5
    KeyedObject that = (KeyedObject)obj;
    5
    KeyedObject that = (KeyedObject)obj;
    5
    HistogramDataset that = (HistogramDataset)obj;
    Differences
    Expression1Expression2Difference
    org.jfree.data.KeyedObjectorg.jfree.data.statistics.HistogramDatasetSUBCLASS_TYPE_MISMATCH
    org.jfree.data.KeyedObjectorg.jfree.data.statistics.HistogramDatasetSUBCLASS_TYPE_MISMATCH
    org.jfree.data.KeyedObjectorg.jfree.data.statistics.HistogramDatasetSUBCLASS_TYPE_MISMATCH
    5
    HistogramDataset that = (HistogramDataset)obj;
    6
    if (!ObjectUtilities.equal(this.key, that.key))
    6
    if (!ObjectUtilities.equal(this.key, that.key))
    6
    if (!ObjectUtilities.equal(this.type, that.type))
    Differences
    Expression1Expression2Difference
    keytypeVARIABLE_NAME_MISMATCH
    java.lang.Comparableorg.jfree.data.statistics.HistogramTypeVARIABLE_TYPE_MISMATCH
    org.jfree.data.KeyedObjectorg.jfree.data.statistics.HistogramDatasetSUBCLASS_TYPE_MISMATCH
    keytypeVARIABLE_NAME_MISMATCH
    java.lang.Comparableorg.jfree.data.statistics.HistogramTypeVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Comparable of variable this.key does not match with type org.jfree.data.statistics.HistogramType of variable this.type
    • Make classes java.lang.Comparable and org.jfree.data.statistics.HistogramType extend a common superclass
    Expression that.key cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.type cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.lang.Comparable of variable that.key does not match with type org.jfree.data.statistics.HistogramType of variable that.type
    • Make classes java.lang.Comparable and org.jfree.data.statistics.HistogramType extend a common superclass
    6
    if (!ObjectUtilities.equal(this.type, that.type))
    7
    return false;
    7
    return false;
    8
    if (!ObjectUtilities.equal(this.object, that.object))
    8
    if (!ObjectUtilities.equal(this.object, that.object))
    8
    if (!ObjectUtilities.equal(this.list, that.list))
    Differences
    Expression1Expression2Difference
    objectlistVARIABLE_NAME_MISMATCH
    java.lang.Objectjava.util.ListVARIABLE_TYPE_MISMATCH
    org.jfree.data.KeyedObjectorg.jfree.data.statistics.HistogramDatasetSUBCLASS_TYPE_MISMATCH
    objectlistVARIABLE_NAME_MISMATCH
    java.lang.Objectjava.util.ListVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Object of variable this.object does not match with type java.util.List of variable this.list
    • Make classes java.lang.Object and java.util.List extend a common superclass
    Expression that.object cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression that.list cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type java.lang.Object of variable that.object does not match with type java.util.List of variable that.list
    • Make classes java.lang.Object and java.util.List extend a common superclass
    8
    if (!ObjectUtilities.equal(this.list, that.list))
    9
    return false;
    9
    return false;
    10
    return true;
    10
    return true;
    Precondition Violations (9)
    Row Violation
    1Type java.lang.Comparable of variable this.key does not match with type org.jfree.data.statistics.HistogramType of variable this.type
    2Expression that.key cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression that.type cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Type java.lang.Comparable of variable that.key does not match with type org.jfree.data.statistics.HistogramType of variable that.type
    5Type java.lang.Object of variable this.object does not match with type java.util.List of variable this.list
    6Expression that.object cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Expression that.list cannot be parameterized, because it has dependencies to/from statements that will be extracted
    8Type java.lang.Object of variable that.object does not match with type java.util.List of variable that.list
    9The refactoring of the clones is infeasible, because classes org.jfree.data.KeyedObject and org.jfree.data.statistics.HistogramDataset do not have a common superclass