158-35-39

try { messageDigest = MessageDigest.getInstance(algorithm); } catch (NoSuchAlgorithmException noalgo) { throw new BuildException(noalgo); }
if (remotedir == null) { try { remotedir = ftp.printWorkingDirectory(); } catch (IOException e) { throw new BuildException("could not read current ftp directory", getLocation()); } }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/selectors/modifiedselector/DigestAlgorithm.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/net/FTP.java
Method name: `void initMessageDigest()` |  | Method name: `void checkIncludePatterns()`
Number of AST nodes: 2 |  | Number of AST nodes: 3

1

    if (remotedir == null) {↵

1

    try {↵

2

                    try {↵

2

                    messageDigest = MessageDigest.getInstance(algorithm);↵

3

                       ↵

4

     remotedir = ftp.printWorkingDirectory();↵

3

                } catch (NoSuchAlgorithmException noalgo) {↵

5

                    } catch (↵

6

    IOException e) {↵

4

                    throw new BuildException(noalgo);↵

7

                        throw new BuildException("could not read current ftp directory",↵

8

                            getLocation());↵

9

                    }↵

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) | 0.2
Clones location | Clones are in different classes
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) | 5.1
   Clone type | Type 2

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

   6

       try

   6 | try
   6 | 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
   new BuildException(noalgo) | new BuildException("could not read current ftp directory",getLocation()) | ARGUMENT_NUMBER_MISMATCH

   6

       try

   7 | remotedir = ftp.printWorkingDirectory();

   Preondition Violations
   Unmatched statement remotedir=ftp.printWorkingDirectory(); 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

   7

       remotedir = ftp.printWorkingDirectory();

   7

       messageDigest = MessageDigest.getInstance(algorithm);

   7 | 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 (2)
   Row | Violation
   --- | ---
   1 | Unmatched statement remotedir=ftp.printWorkingDirectory(); 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
   2 | 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