if (commandline == null) { commandline = new CommandlineJava(); } return commandline;
if (monitor == null) { monitor = new ProgressMonitor(); } return monitor;
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/taskdefs/optional/ssh/AbstractSshMessage.java
Method name: CommandlineJava getCommandline() Method name: SftpProgressMonitor getProgressMonitor()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (commandline == null) {
1
if (monitor == null) {
2
            commandline = new CommandlineJava();
2
            monitor = new ProgressMonitor();
3
        }
3
        }
4
        return commandline;
4
        return monitor;
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 (commandline == null)
    1
    if (commandline == null)
    1
    if (monitor == null)
    Differences
    Expression1Expression2Difference
    commandlinemonitorVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.types.CommandlineJavaorg.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitorVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.types.CommandlineJava of variable commandline does not match with type org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitor of variable monitor
    • Make classes org.apache.tools.ant.types.CommandlineJava and org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitor extend a common superclass
    1
    if (monitor == null)
                                                                      
    2
    monitor = new ProgressMonitor();
    2
    commandline = new CommandlineJava();
                                                                              
                                        
    3
    return monitor;
    Preondition Violations
    Unmatched return monitor;
    3
    return monitor;
    3
    return commandline;
    3
    return commandline;
    Preondition Violations
    Unmatched return commandline;
                                                
    Precondition Violations (3)
    Row Violation
    1Type org.apache.tools.ant.types.CommandlineJava of variable commandline does not match with type org.apache.tools.ant.taskdefs.optional.ssh.AbstractSshMessage.ProgressMonitor of variable monitor
    2Unmatched return monitor;
    3Unmatched return commandline;