158-177-196

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

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/FileUtils.java |  | File path: /apache-ant-1.7.0/src/tests/junit/org/apache/tools/mail/MailMessageTest.java
Method name: `void close(OutputStream)` |  | Method name: `void disconnect()`
Number of AST nodes: 3 |  | Number of AST nodes: 5

1

    if (device != null) {↵

1

    if (out != null) {↵

2

                try {↵

2

                    try {↵

3

                    device.close();↵

3

                    ↵

4

        out.flush();↵

5

                        out.close();↵

6

                        out = null;↵

4

                } catch (IOException ioex) {↵

7

                    } catch (IOException e) {↵

5

                    //ignore↵

8

                        // ignore↵

6

                }↵

9

                ↵

10

        }↵

7

            }

11

                }

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) | 0.2
Clones location | Clones are in different classes
Number of node comparisons | 9

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 3
   Number of unmapped statements in the first code fragment | 0
   Number of unmapped statements in the second code fragment | 2
   Time elapsed for statement mapping (ms) | 0.7
   Clone type | Type 3

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

   1

       if (device != null)

   1 | if (device != null)
   1 | if (out != null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   device | out | VARIABLE_NAME_MISMATCH
   java.io.OutputStream | java.io.BufferedWriter | VARIABLE_TYPE_MISMATCH

   Preondition Violations

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

   1

       if (out != null)

   2

       try

   2 | try
   2 | try

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

   2

       try

   3 | out.flush();

   Preondition Violations
   Unmatched statement out.flush(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted

   3

       out.flush();

   3

       device.close();

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

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   device | out | VARIABLE_NAME_MISMATCH
   java.io.OutputStream | java.io.BufferedWriter | VARIABLE_TYPE_MISMATCH

   Preondition Violations

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

   4

       out.close();

   5

       out = null;

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Type java.io.OutputStream of variable device does not match with type java.io.BufferedWriter of variable out
   2 | Unmatched statement out.flush(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
   3 | Type java.io.OutputStream of variable device does not match with type java.io.BufferedWriter of variable out