if (nsParserFactory == null) { nsParserFactory = newParserFactory(); nsParserFactory.setNamespaceAware(true); } return nsParserFactory;
if (token == null) { token = new NestedString(); } return token;
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/JAXPUtils.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/Replace.java
Method name: SAXParserFactory getNSParserFactory() Method name: NestedString createReplaceToken()
Number of AST nodes: 4 Number of AST nodes: 3
1
if (nsParserFactory == null) {
1
if (token == null) {
2
            nsParserFactory = newParserFactory();
2
            
3
            nsParserFactory.setNamespaceAware(true);
3
token = new NestedString();
4
        }
4
        }
5
        return nsParserFactory;
5
        return token;
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
Number of node comparisons7
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.4
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (nsParserFactory == null)
    1
    if (nsParserFactory == null)
    1
    if (token == null)
    Differences
    Expression1Expression2Difference
    nsParserFactorytokenVARIABLE_NAME_MISMATCH
    javax.xml.parsers.SAXParserFactoryorg.apache.tools.ant.taskdefs.Replace.NestedStringVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type javax.xml.parsers.SAXParserFactory of variable nsParserFactory does not match with type org.apache.tools.ant.taskdefs.Replace.NestedString of variable token
    • Make classes javax.xml.parsers.SAXParserFactory and org.apache.tools.ant.taskdefs.Replace.NestedString extend a common superclass
    1
    if (token == null)
                                                            
    2
    token = new NestedString();
    2
    nsParserFactory = newParserFactory();
                                                                                
    3
    nsParserFactory.setNamespaceAware(true);
                                                                                          
                                    
    3
    return token;
    Preondition Violations
    Unmatched return token;
    3
    return token;
    4
    return nsParserFactory;
    4
    return nsParserFactory;
    Preondition Violations
    Unmatched return nsParserFactory;
                                                        
    Precondition Violations (3)
    Row Violation
    1Type javax.xml.parsers.SAXParserFactory of variable nsParserFactory does not match with type org.apache.tools.ant.taskdefs.Replace.NestedString of variable token
    2Unmatched return token;
    3Unmatched return nsParserFactory;