158-123-176

try { os.close(); } catch (IOException e) { //ignore }
if (device != null) { try { device.close(); } catch (IOException ioex) { //ignore } }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/PumpStreamHandler.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/FileUtils.java
Method name: `void setProcessInputStream(OutputStream)` |  | Method name: `void close(InputStream)`
Number of AST nodes: 2 |  | Number of AST nodes: 3

1

    if (device != null) {↵

1

    try {↵

2

                try {↵

2

                    os.close();↵

3

                    device.close();↵

3

                } catch (IOException e) {↵

4

                } catch (IOException ioex) {↵

4

                    //ignore↵

5

                    //ignore↵

5

                }

6

                }↵

7

            }

See real code fragment |  | See real code fragment

Summary
Number of common nesting structure subtrees | 1
Number of refactorable cases | 0
Number of non-refactorable cases | 1
Time elapsed for finding largest common nesting structure subtrees (ms) | 0.1
Clones location | Clones are in different classes
Number of node comparisons | 4

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 2
   Number of unmapped statements in the first code fragment | 0
   Number of unmapped statements in the second code fragment | 0
   Time elapsed for statement mapping (ms) | 0.3
   Clone type | Type 2

   Mapped Statements
   ID | Statement |  | ID | Statement
   --- | --- | --- | --- | ---

   3

       try

   3 | try
   2 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   e | ioex | VARIABLE_NAME_MISMATCH

   2

       try

   4

       os.close();

   4 | os.close();
   3 | device.close();

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   os | device | VARIABLE_NAME_MISMATCH
   java.io.OutputStream | java.io.InputStream | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.io.OutputStream of variable os does not match with type java.io.InputStream of variable device
   - Make classes java.io.OutputStream and java.io.InputStream extend a common superclass

   3

       device.close();

   Precondition Violations (1)
   Row | Violation
   --- | ---
   1 | Type java.io.OutputStream of variable os does not match with type java.io.InputStream of variable device