if (parserFactory == null) { parserFactory = newParserFactory(); } return parserFactory;
if (outPrintStream == null) { outPrintStream = new PrintStream(outputStream); } outPrintStream.print(output); outPrintStream.flush();
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/Redirector.java
Method name: SAXParserFactory getParserFactory() Method name: void handleFlush(String)
Number of AST nodes: 3 Number of AST nodes: 4
1
if (parserFactory == null) {
1
if (outPrintStream == null) {
2
            parserFactory = newParserFactory();
2
            
3
        }
4
        return parserFactory
3
outPrintStream = new PrintStream(outputStream);
4
        }
5
        outPrintStream.print(output);
5
;
6
        outPrintStream.flush();
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 comparisons6
  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 fragment3
    Time elapsed for statement mapping (ms)0.3
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (parserFactory == null)
    1
    if (parserFactory == null)
    1
    if (outPrintStream == null)
    Differences
    Expression1Expression2Difference
    parserFactoryoutPrintStreamVARIABLE_NAME_MISMATCH
    javax.xml.parsers.SAXParserFactoryjava.io.PrintStreamVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type javax.xml.parsers.SAXParserFactory of variable parserFactory does not match with type java.io.PrintStream of variable outPrintStream
    • Make classes javax.xml.parsers.SAXParserFactory and java.io.PrintStream extend a common superclass
    1
    if (outPrintStream == null)
                                                                                                    
    2
    outPrintStream = new PrintStream(outputStream);
    2
    parserFactory = newParserFactory();
                                                                            
                                                                    
    3
    outPrintStream.print(output);
    3
    return parserFactory;
    3
    return parserFactory;
    Preondition Violations
    Unmatched return parserFactory;
                                                    
                                                        
    4
    outPrintStream.flush();
    Precondition Violations (2)
    Row Violation
    1Type javax.xml.parsers.SAXParserFactory of variable parserFactory does not match with type java.io.PrintStream of variable outPrintStream
    2Unmatched return parserFactory;