if (nsParserFactory == null) { nsParserFactory = newParserFactory(); nsParserFactory.setNamespaceAware(true); } return nsParserFactory;
if (commandline == null) { commandline = new CommandlineJava(); } return commandline;
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/optional/junit/JUnitTask.java
Method name: SAXParserFactory getNSParserFactory() Method name: CommandlineJava getCommandline()
Number of AST nodes: 4 Number of AST nodes: 3
1
if (nsParserFactory == null) {
1
if (commandline == null) {
2
            nsParserFactory = newParserFactory();
2
            
3
            nsParserFactory.setNamespaceAware(true);
3
commandline = new CommandlineJava();
4
        }
4
        }
5
        return nsParserFactory;
5
        return commandline;
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)0.5
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (nsParserFactory == null)
    1
    if (nsParserFactory == null)
    1
    if (commandline == null)
    Differences
    Expression1Expression2Difference
    nsParserFactorycommandlineVARIABLE_NAME_MISMATCH
    javax.xml.parsers.SAXParserFactoryorg.apache.tools.ant.types.CommandlineJavaVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type javax.xml.parsers.SAXParserFactory of variable nsParserFactory does not match with type org.apache.tools.ant.types.CommandlineJava of variable commandline
    • Make classes javax.xml.parsers.SAXParserFactory and org.apache.tools.ant.types.CommandlineJava extend a common superclass
    1
    if (commandline == null)
                                                                              
    2
    commandline = new CommandlineJava();
    2
    nsParserFactory = newParserFactory();
                                                                                
    3
    nsParserFactory.setNamespaceAware(true);
                                                                                          
                                                
    3
    return commandline;
    Preondition Violations
    Unmatched return commandline;
    3
    return commandline;
    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.types.CommandlineJava of variable commandline
    2Unmatched return commandline;
    3Unmatched return nsParserFactory;