while (tasksToRun != null && tasksToRun.hasMoreElements()) { TelnetSubTask task = (TelnetSubTask) tasksToRun.nextElement(); if (task instanceof TelnetRead && defaultTimeout != null) { ((TelnetRead) task).setDefaultTimeout(defaultTimeout); } task.execute(telnet); }
while (tasksToRun != null && tasksToRun.hasMoreElements()) { RExecSubTask task = (RExecSubTask) tasksToRun.nextElement(); if (task instanceof RExecRead && defaultTimeout != null) { ((RExecRead) task).setDefaultTimeout(defaultTimeout); } task.execute(rexec); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/net/TelnetTask.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/net/RExecTask.java
Method name: void execute() Method name: void handleMultipleTasks(AntRExecClient)
Number of AST nodes: 5 Number of AST nodes: 5
1
while (tasksToRun != null && tasksToRun.hasMoreElements()) {
1
while (tasksToRun != null && tasksToRun.hasMoreElements()) {
2
               TelnetSubTask task = (TelnetSubTask) tasksToRun.nextElement();
2
            RExecSubTask task = (RExecSubTask) tasksToRun.nextElement();
3
               if (task instanceof TelnetRead && defaultTimeout != null) {
3
            if (task instanceof RExecRead && defaultTimeout != null) {
4
                   ((TelnetRead) task).setDefaultTimeout(defaultTimeout);
4
                ((RExecRead) task).setDefaultTimeout(defaultTimeout);
5
               }
5
            
6
   
6
}
7
            task.execute(telnet);
7
            task.execute(
8
   
8
rexec);
9
        }
9
        }
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)0.3
Clones locationClones are in different classes having the same super class
Number of node comparisons13
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.8
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    15
    while (tasksToRun != null && tasksToRun.hasMoreElements())
    4
    while (tasksToRun != null && tasksToRun.hasMoreElements())
                                                                                                                            
    5
    RExecSubTask task = (RExecSubTask)tasksToRun.nextElement();
    Preondition Violations
    Unmatched statement RExecSubTask task=(RExecSubTask)tasksToRun.nextElement(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    5
    RExecSubTask task = (RExecSubTask)tasksToRun.nextElement();
    16
    TelnetSubTask task = (TelnetSubTask)tasksToRun.nextElement();
    16
    TelnetSubTask task = (TelnetSubTask)tasksToRun.nextElement();
    Preondition Violations
    Unmatched statement TelnetSubTask task=(TelnetSubTask)tasksToRun.nextElement(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                                                                                  
    17
    if (task instanceof TelnetRead && defaultTimeout != null)
    17
    if (task instanceof TelnetRead && defaultTimeout != null)
    6
    if (task instanceof RExecRead && defaultTimeout != null)
    Differences
    Expression1Expression2Difference
    org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTaskorg.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTaskVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTask of variable task does not match with type org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTask of variable task
    • Make classes org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTask and org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTask extend a common superclass
    6
    if (task instanceof RExecRead && defaultTimeout != null)
    18
    ((TelnetRead)task).setDefaultTimeout(defaultTimeout);
    18
    ((TelnetRead)task).setDefaultTimeout(defaultTimeout);
    7
    ((RExecRead)task).setDefaultTimeout(defaultTimeout);
    Differences
    Expression1Expression2Difference
    org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetReadorg.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecReadVARIABLE_TYPE_MISMATCH
    org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTaskorg.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTaskVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetRead of variable (TelnetRead)task does not match with type org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecRead of variable (RExecRead)task
    • Make classes org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetRead and org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecRead extend a common superclass
    Type org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTask of variable task does not match with type org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTask of variable task
    • Make classes org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTask and org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTask extend a common superclass
    7
    ((RExecRead)task).setDefaultTimeout(defaultTimeout);
                                                  
    8
    task.execute(rexec);
    19
    task.execute(telnet);
                                                      
    Precondition Violations (5)
    Row Violation
    1Unmatched statement RExecSubTask task=(RExecSubTask)tasksToRun.nextElement(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2Unmatched statement TelnetSubTask task=(TelnetSubTask)tasksToRun.nextElement(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    3Type org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTask of variable task does not match with type org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTask of variable task
    4Type org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetRead of variable (TelnetRead)task does not match with type org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecRead of variable (RExecRead)task
    5Type org.apache.tools.ant.taskdefs.optional.net.TelnetTask.TelnetSubTask of variable task does not match with type org.apache.tools.ant.taskdefs.optional.net.RExecTask.RExecSubTask of variable task