if (monitor == null) { monitor = new ProgressMonitor(); } return monitor;
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/taskdefs/optional/ssh/AbstractSshMessage.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/Antlib.java
Method name: SftpProgressMonitor getProgressMonitor() Method name: ClassLoader getClassLoader()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (monitor == null) {
1
if (classLoader == null) {
2
            monitor = new ProgressMonitor();
2
            classLoader = Antlib.class.getClassLoader();
3
        }
3
        }
4
        return monitor;
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 (monitor == null)
    1
    if (monitor == null)
    1
    if (classLoader == null)
    Differences
    Expression1Expression2Difference
    monitorclassLoaderVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitorjava.lang.ClassLoaderVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitor of variable monitor does not match with type java.lang.ClassLoader of variable classLoader
    • Make classes org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitor and java.lang.ClassLoader extend a common superclass
    1
    if (classLoader == null)
                                                                                              
    2
    classLoader = Antlib.class.getClassLoader();
    2
    monitor = new ProgressMonitor();
                                                                      
                                                
    3
    return classLoader;
    Preondition Violations
    Unmatched return classLoader;
    3
    return classLoader;
    3
    return monitor;
    3
    return monitor;
    Preondition Violations
    Unmatched return monitor;
                                        
    Precondition Violations (3)
    Row Violation
    1Type org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitor of variable monitor does not match with type java.lang.ClassLoader of variable classLoader
    2Unmatched return classLoader;
    3Unmatched return monitor;