158-20-35

try { return getDocumentBuilderFactory().newDocumentBuilder(); } catch (ParserConfigurationException e) { throw new BuildException(e); }
try { messageDigest = MessageDigest.getInstance(algorithm); } catch (NoSuchAlgorithmException noalgo) { throw new BuildException(noalgo); }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/JAXPUtils.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/selectors/modifiedselector/DigestAlgorithm.java
Method name: `DocumentBuilder getDocumentBuilder()` |  | Method name: `void initMessageDigest()`
Number of AST nodes: 2 |  | Number of AST nodes: 2

1

    try {↵

1

    try {↵

2

                return getDocumentBuilderFactory().newDocumentBuilder();↵

2

                ↵

3

            } catch (ParserConfigurationException e) {↵

3

        messageDigest = MessageDigest.getInstance(algorithm);↵

4

                } catch (NoSuchAlgorithmException noalgo) {↵

4

                throw new BuildException(e);↵

5

                    throw new BuildException(↵

6

    noalgo);↵

5

            }

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) | 0.2
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) | 0.4
   Clone type | Type 2

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

   1

       try

   1 | try
   6 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   javax.xml.parsers.ParserConfigurationException | java.security.NoSuchAlgorithmException | SUBCLASS_TYPE_MISMATCH
   e | noalgo | VARIABLE_NAME_MISMATCH
   javax.xml.parsers.ParserConfigurationException | java.security.NoSuchAlgorithmException | SUBCLASS_TYPE_MISMATCH
   e | noalgo | VARIABLE_NAME_MISMATCH
   javax.xml.parsers.ParserConfigurationException | java.security.NoSuchAlgorithmException | SUBCLASS_TYPE_MISMATCH

   6

       try

   2

       return getDocumentBuilderFactory().newDocumentBuilder();

   2 | return getDocumentBuilderFactory().newDocumentBuilder();

   Preondition Violations
   Unmatched statement return getDocumentBuilderFactory().newDocumentBuilder(); 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
   Unmatched return getDocumentBuilderFactory().newDocumentBuilder();

   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

   7

       messageDigest = MessageDigest.getInstance(algorithm);

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Unmatched statement return getDocumentBuilderFactory().newDocumentBuilder(); 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 return getDocumentBuilderFactory().newDocumentBuilder();
   3 | 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