if (perm == null) { perm = new Permissions(); } return perm;
if (myClassLoader == null) { myClassLoader = (classpath == null) // the usual classloader ? getClass().getClassLoader() // additional use the provided classpath : getProject().createClassLoader(classpath); } return myClassLoader;
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/junit/JUnitTask.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/selectors/modifiedselector/ModifiedSelector.java
Method name: Permissions createPermissions() Method name: ClassLoader getClassLoader()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (perm == null) {
1
if (myClassLoader == null) {
2
            perm = new Permissions(
2
            myClassLoader = (classpath == null)
3
                // the usual classloader
4
                ? getClass().getClassLoader()
5
                // additional use the provided classpath
3
);
6
                : getProject().createClassLoader(classpath);
4
        }
7
        }
5
        return perm;
8
        return myClassLoader;
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)0.4
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (perm == null)
    1
    if (perm == null)
    1
    if (myClassLoader == null)
    Differences
    Expression1Expression2Difference
    permmyClassLoaderVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.types.Permissionsjava.lang.ClassLoaderVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.types.Permissions of variable perm does not match with type java.lang.ClassLoader of variable myClassLoader
    • Make classes org.apache.tools.ant.types.Permissions and java.lang.ClassLoader extend a common superclass
    1
    if (myClassLoader == null)
                                                                                                                                                                                                                                  
    2
    myClassLoader = (classpath == null) ? getClass().getClassLoader() : getProject().createClassLoader(classpath);
    2
    perm = new Permissions();
                                                        
                                                    
    3
    return myClassLoader;
    Preondition Violations
    Unmatched return myClassLoader;
    3
    return myClassLoader;
    3
    return perm;
    3
    return perm;
    Preondition Violations
    Unmatched return perm;
                                  
    Precondition Violations (3)
    Row Violation
    1Type org.apache.tools.ant.types.Permissions of variable perm does not match with type java.lang.ClassLoader of variable myClassLoader
    2Unmatched return myClassLoader;
    3Unmatched return perm;