if (FACTORY == null) { FACTORY = new ObjectFactory(); } return FACTORY;
if (files == null) { files = new HashSet(); } files.add(filename);
Clone fragments detected by clone detection tool
File path: /jakarta-jmeter-2.3.2/src/org/apache/jmeter/monitor/model/ObjectFactory.java File path: /jakarta-jmeter-2.3.2/src/org/apache/jmeter/samplers/SampleResult.java
Method name: ObjectFactory getInstance() Method name: void setMarked(String)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (FACTORY == null) {
1
if (files == null) {
2
			FACTORY = new ObjectFactory();
2
			
3
		}
4
		return FACTORY
3
files = new HashSet();
4
		}
5
;
5
		files.add(filename);
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)0.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (FACTORY == null)
    1
    if (FACTORY == null)
    1
    if (files == null)
    Differences
    Expression1Expression2Difference
    FACTORYfilesVARIABLE_NAME_MISMATCH
    org.apache.jmeter.monitor.model.ObjectFactoryjava.util.SetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.jmeter.monitor.model.ObjectFactory of variable FACTORY does not match with type java.util.Set of variable files
    • Make classes org.apache.jmeter.monitor.model.ObjectFactory and java.util.Set extend a common superclass
    1
    if (files == null)
                                                  
    2
    files = new HashSet();
    Preondition Violations
    Unmatched statement files=new HashSet(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2
    files = new HashSet();
    2
    FACTORY = new ObjectFactory();
    2
    FACTORY = new ObjectFactory();
    Preondition Violations
    Unmatched statement FACTORY=new ObjectFactory(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                  
                                                  
    3
    files.add(filename);
    Preondition Violations
    Unmatched statement files.add(filename); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3
    files.add(filename);
    3
    return FACTORY;
    3
    return FACTORY;
    Preondition Violations
    Unmatched return FACTORY;
                                        
    Precondition Violations (6)
    Row Violation
    1Type org.apache.jmeter.monitor.model.ObjectFactory of variable FACTORY does not match with type java.util.Set of variable files
    2Unmatched statement files=new HashSet(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement FACTORY=new ObjectFactory(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched statement files.add(filename); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    5Unmatched return FACTORY;
    6The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero