158-32-34

try { reg.setPattern(from); } catch (NoClassDefFoundError e) { // depending on the implementation the actual RE won't // get instantiated in the constructor. throw new BuildException("Cannot load regular expression matcher", e); }
try { return DocumentBuilderFactory.newInstance().newDocumentBuilder(); } catch (Exception exc) { throw new ExceptionInInitializerError(exc); }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/RegexpPatternMapper.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
Method name: `void setFrom(String)` |  | Method name: `DocumentBuilder getDocumentBuilder()`
Number of AST nodes: 2 |  | Number of AST nodes: 2

1

    try {↵

1

    try {↵

2

                reg.setPattern(from);↵

2

                re↵

3

            } catch (NoClassDefFoundError e) {↵

4

                // depending on the implementation the actual RE won't↵

5

                // get instantiated in the constructor.↵

3

    turn DocumentBuilderFactory.newInstance().newDocumentBuilder();↵

4

            } catch (Exception exc) {↵

6

                throw new BuildException("Cannot load regular expression matcher",↵

5

                throw new Exception↵

7

                                         e);↵

6

    InInitializerError(exc);↵

8

            }

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
   1 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.lang.NoClassDefFoundError | java.lang.Exception | SUBCLASS_TYPE_MISMATCH
   e | exc | VARIABLE_NAME_MISMATCH
   java.lang.NoClassDefFoundError | java.lang.Exception | SUBCLASS_TYPE_MISMATCH
   org.apache.tools.ant.BuildException | java.lang.ExceptionInInitializerError | SUBCLASS_TYPE_MISMATCH
   new BuildException("Cannot load regular expression matcher",e) | new ExceptionInInitializerError(exc) | ARGUMENT_NUMBER_MISMATCH

   1

       try

   2 | return DocumentBuilderFactory.newInstance().newDocumentBuilder();

   Preondition Violations
   Unmatched return DocumentBuilderFactory.newInstance().newDocumentBuilder();

   2

       return DocumentBuilderFactory.newInstance().newDocumentBuilder();

   2

       reg.setPattern(from);

   2 | reg.setPattern(from);

   Preondition Violations
   Unmatched statement reg.setPattern(from); 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 return DocumentBuilderFactory.newInstance().newDocumentBuilder();
   2 | Unmatched statement reg.setPattern(from); 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