158-14-17

if (basedir != null) { try { canonBase = basedir.getCanonicalFile(); } catch (IOException ex) { throw new BuildException(ex); } }
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/DirectoryScanner.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/XmlLogger.java
Method name: `void checkIncludePatterns()` |  | Method name: `DocumentBuilder getDocumentBuilder()`
Number of AST nodes: 3 |  | Number of AST nodes: 2

1

    if (basedir != null) {↵

2

                    try {↵

1

    try {↵

3

                        canonBase = basedir.getCanonicalFile();↵

2

                ↵

4

            ↵

3

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

5

            } catch (IOException ex) {↵

4

            } catch (Exception exc) {↵

6

                        throw new BuildException(ex);↵

5

                throw new ExceptionInInitializerError(exc);↵

7

                    }↵

8

                }

6

            }

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) | 0.6
   Clone type | Type 2

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

   14

       try

   14 | try
   1 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.io.IOException | java.lang.Exception | SUBCLASS_TYPE_MISMATCH
   ex | exc | VARIABLE_NAME_MISMATCH
   java.io.IOException | java.lang.Exception | SUBCLASS_TYPE_MISMATCH
   org.apache.tools.ant.BuildException | java.lang.ExceptionInInitializerError | SUBCLASS_TYPE_MISMATCH
   ex | exc | VARIABLE_NAME_MISMATCH
   java.io.IOException | java.lang.Exception | SUBCLASS_TYPE_MISMATCH

   1

       try

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

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

   2

       return DocumentBuilderFactory.newInstance().newDocumentBuilder();

   15

       canonBase = basedir.getCanonicalFile();

   15 | canonBase = basedir.getCanonicalFile();

   Preondition Violations
   Unmatched statement canonBase=basedir.getCanonicalFile(); 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 canonBase=basedir.getCanonicalFile(); 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