if (o == null) { return 0; } else { return o.hashCode(); }
if (anonymousSchema == null) { return null; } else { return anonymousSchema.getSchemaLocationURL(); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/MacroDef.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/SchemaValidate.java
Method name: int objectHashCode(Object) Method name: String getNoNamespaceSchemaURL()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (o == null) {
1
if (anonymousSchema == null) {
2
            return 0;
2
            return null;
3
        } else {
3
        } else {
4
            return o.hashCode();
4
            return anonymousSchema.getSchemaLocationURL();
5
        }
5
        }
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)0.1
Clones locationClones are in different classes having the same super class
Number of node comparisons9
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (o == null)
    1
    if (o == null)
    1
    if (anonymousSchema == null)
    Differences
    Expression1Expression2Difference
    oanonymousSchemaVARIABLE_NAME_MISMATCH
    java.lang.Objectorg.apache.tools.ant.taskdefs.optional.SchemaValidate.SchemaLocationVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Object of variable o does not match with type org.apache.tools.ant.taskdefs.optional.SchemaValidate.SchemaLocation of variable anonymousSchema
    • Make classes java.lang.Object and org.apache.tools.ant.taskdefs.optional.SchemaValidate.SchemaLocation extend a common superclass
    1
    if (anonymousSchema == null)
                                  
    2
    return null;
    Preondition Violations
    Unmatched return null;
    2
    return null;
    2
    return 0;
    2
    return 0;
    Preondition Violations
    Unmatched return 0;
                            
    else
            
                                                                                                      
    3
    return anonymousSchema.getSchemaLocationURL();
    Preondition Violations
    Unmatched return anonymousSchema.getSchemaLocationURL();
    3
    return anonymousSchema.getSchemaLocationURL();
    3
    return o.hashCode();
    3
    return o.hashCode();
    Preondition Violations
    Unmatched return o.hashCode();
                                                  
    Precondition Violations (5)
    Row Violation
    1Type java.lang.Object of variable o does not match with type org.apache.tools.ant.taskdefs.optional.SchemaValidate.SchemaLocation of variable anonymousSchema
    2Unmatched return null;
    3Unmatched return 0;
    4Unmatched return anonymousSchema.getSchemaLocationURL();
    5Unmatched return o.hashCode();