if (parserFactory == null) { parserFactory = newParserFactory(); } return parserFactory;
if (classLoader == null) { classLoader = Antlib.class.getClassLoader(); } return classLoader;
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/Antlib.java
Method name: SAXParserFactory getParserFactory() Method name: ClassLoader getClassLoader()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (parserFactory == null) {
1
if (classLoader == null) {
2
            parserFactory = newParserFactory();
2
            classLoader = Antlib.class.getClassLoader();
3
        }
3
        }
4
        return parserFactory;
4
        return classLoader;
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 comparisons5
  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)0.3
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (parserFactory == null)
    1
    if (parserFactory == null)
    1
    if (classLoader == null)
    Differences
    Expression1Expression2Difference
    parserFactoryclassLoaderVARIABLE_NAME_MISMATCH
    javax.xml.parsers.SAXParserFactoryjava.lang.ClassLoaderVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type javax.xml.parsers.SAXParserFactory of variable parserFactory does not match with type java.lang.ClassLoader of variable classLoader
    • Make classes javax.xml.parsers.SAXParserFactory and java.lang.ClassLoader extend a common superclass
    1
    if (classLoader == null)
                                                                                              
    2
    classLoader = Antlib.class.getClassLoader();
    2
    parserFactory = newParserFactory();
                                                                            
                                                
    3
    return classLoader;
    Preondition Violations
    Unmatched return classLoader;
    3
    return classLoader;
    3
    return parserFactory;
    3
    return parserFactory;
    Preondition Violations
    Unmatched return parserFactory;
                                                    
    Precondition Violations (3)
    Row Violation
    1Type javax.xml.parsers.SAXParserFactory of variable parserFactory does not match with type java.lang.ClassLoader of variable classLoader
    2Unmatched return classLoader;
    3Unmatched return parserFactory;