158-8-32

try { // compute the compiler options based on the input options first Pattern p = compiler.compile(pattern, getCompilerOptions(options)); return p; } catch (Exception e) { throw new BuildException(e); }
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); }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/regexp/JakartaOroMatcher.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/RegexpPatternMapper.java
Method name: `Pattern getCompiledPattern(int)` |  | Method name: `void setFrom(String)`
Number of AST nodes: 3 |  | Number of AST nodes: 2

1

    try {↵

1

    try {↵

2

                // compute the compiler options based on the input options first↵

2

                ↵

3

                Pattern p = co↵

3

    reg.setPattern(from);↵

4

            } catch (NoClassDefFoundError e) {↵

4

    mpiler.compile(pattern, getCompilerOptions(options));↵

5

                // depending on the imple↵

5

                return p;↵

6

            } catch (Exception e) {↵

7

                throw new BuildException(↵

6

    mentation the actual RE won't↵

7

                // get instantiated in the constructor.↵

8

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

8

    e);↵

9

                                         e);↵

9

            }

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 | 6

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 2
   Number of unmapped statements in the second code fragment | 1
   Time elapsed for statement mapping (ms) | 0.5
   Clone type | Type 3

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

   1

       try

   1 | try
   1 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.lang.Exception | java.lang.NoClassDefFoundError | SUBCLASS_TYPE_MISMATCH
   java.lang.Exception | java.lang.NoClassDefFoundError | SUBCLASS_TYPE_MISMATCH
   new BuildException(e) | new BuildException("Cannot load regular expression matcher",e) | ARGUMENT_NUMBER_MISMATCH

   1

       try

   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

   2

       reg.setPattern(from);

   2

       Pattern p = compiler.compile(pattern, getCompilerOptions(options));

   2 | Pattern p = compiler.compile(pattern, getCompilerOptions(options));

   Preondition Violations
   Unmatched statement Pattern p=compiler.compile(pattern,getCompilerOptions(options)); 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

       return p;

   3 | return p;

   Preondition Violations
   Unmatched return p;

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | 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
   2 | Unmatched statement Pattern p=compiler.compile(pattern,getCompilerOptions(options)); 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 | Unmatched return p;