if (token == null) { token = new NestedString(); } return token;
if (fileSets == null) { fileSets = new LinkedList(); } fileSets.add(set);
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/Replace.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/ssh/Scp.java
Method name: NestedString createReplaceToken() Method name: void addFileset(FileSet)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (token == null) {
1
if (fileSets == null) {
2
            token = new NestedString();
2
            fileSets = new LinkedList();
3
        }
3
        }
4
        return token;
4
        fileSets.add(set);
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 having the same super class
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 (token == null)
    1
    if (token == null)
    1
    if (fileSets == null)
    Differences
    Expression1Expression2Difference
    tokenfileSetsVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.Replace.NestedStringjava.util.ListVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.Replace.NestedString of variable token does not match with type java.util.List of variable fileSets
    • Make classes org.apache.tools.ant.taskdefs.Replace.NestedString and java.util.List extend a common superclass
    1
    if (fileSets == null)
                                                              
    2
    fileSets = new LinkedList();
    2
    token = new NestedString();
                                                            
                                              
    3
    fileSets.add(set);
    3
    return token;
    3
    return token;
    Preondition Violations
    Unmatched return token;
                                    
    Precondition Violations (2)
    Row Violation
    1Type org.apache.tools.ant.taskdefs.Replace.NestedString of variable token does not match with type java.util.List of variable fileSets
    2Unmatched return token;