158-131-132

try { messageDigest = MessageDigest.getInstance(algorithm); } catch (NoSuchAlgorithmException noalgo) { throw new BuildException(noalgo, getLocation()); }
try { setErrorStream(new PrintStream( new BufferedOutputStream( new FileOutputStream(error.getPath(), append)))); } catch (IOException e) { throw new BuildException(e, getLocation()); }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/Checksum.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/AbstractCvsTask.java
Method name: `boolean validateAndExecute()` |  | Method name: `OutputStream getErrorStream()`
Number of AST nodes: 2 |  | Number of AST nodes: 2

1

    try {↵

1

    try {↵

2

                    messageDigest = MessageDigest.getInstance(algorithm);↵

2

                    ↵

3

        setErrorStream(new PrintStream(↵

4

                                           new BufferedOutputStream(↵

5

                                               new FileOutputStream(error.getPath(),↵

6

                                                                    append))));↵

3

                } catch (NoSuchAlgorithmException noalgo) {↵

7

                    } catch (↵

8

    IOException e) {↵

4

                    throw new BuildException(noalgo, getLocation());↵

9

                        throw new BuildException(e, getLocation());↵

5

                }

10

                    }

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) | 0.3
Clones location | Clones are in different classes having the same super class
Number of node comparisons | 4

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 1
   Number of unmapped statements in the second code fragment | 1
   Time elapsed for statement mapping (ms) | 0.7
   Clone type | Type 2

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

   32

       try

   32 | try
   3 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.security.NoSuchAlgorithmException | java.io.IOException | SUBCLASS_TYPE_MISMATCH
   noalgo | e | VARIABLE_NAME_MISMATCH
   java.security.NoSuchAlgorithmException | java.io.IOException | SUBCLASS_TYPE_MISMATCH
   noalgo | e | VARIABLE_NAME_MISMATCH
   java.security.NoSuchAlgorithmException | java.io.IOException | SUBCLASS_TYPE_MISMATCH

   3

       try

   4

       setErrorStream(new PrintStream(new BufferedOutputStream(new FileOutputStream(error.getPath(), append))));

   33

       messageDigest = MessageDigest.getInstance(algorithm);

   33 | messageDigest = MessageDigest.getInstance(algorithm);

   Preondition Violations
   Unmatched statement messageDigest=MessageDigest.getInstance(algorithm); 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

   Precondition Violations (1)
   Row | Violation
   --- | ---
   1 | Unmatched statement messageDigest=MessageDigest.getInstance(algorithm); 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