158-1-20

try { BaseResourceCollectionContainer c = (BaseResourceCollectionContainer) super.clone(); c.rc = new ArrayList(rc); c.coll = null; return c; } catch (CloneNotSupportedException e) { throw new BuildException(e); }
try { return getDocumentBuilderFactory().newDocumentBuilder(); } catch (ParserConfigurationException e) { throw new BuildException(e); }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/resources/BaseResourceCollectionContainer.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/JAXPUtils.java
Method name: `Object clone()` |  | Method name: `DocumentBuilder getDocumentBuilder()`
Number of AST nodes: 5 |  | Number of AST nodes: 2

1

    try {↵

1

    try {↵

2

                BaseResourceCollectionContainer c↵

2

                ↵

3

                    = (BaseResourceCollectionContainer) super.clone();↵

4

                c.rc = new ArrayList(rc);↵

5

                c.coll = null;↵

6

                return c;↵

7

            } catch (CloneNotSupported↵

3

    return getDocumentBuilderFactory().newDocumentBuilder();↵

8

    Exception e) {↵

4

            } catch (ParserConfigurationException e) {↵

9

                throw new BuildException(e);↵

5

                throw new BuildException(e);↵

10

            }

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 | 10

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 4
   Number of unmapped statements in the second code fragment | 1
   Time elapsed for statement mapping (ms) | 0.6
   Clone type | Type 3

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

   1

       try

   1 | try
   1 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.lang.CloneNotSupportedException | javax.xml.parsers.ParserConfigurationException | SUBCLASS_TYPE_MISMATCH
   java.lang.CloneNotSupportedException | javax.xml.parsers.ParserConfigurationException | SUBCLASS_TYPE_MISMATCH
   java.lang.CloneNotSupportedException | javax.xml.parsers.ParserConfigurationException | SUBCLASS_TYPE_MISMATCH

   1

       try

   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();

   2

       return getDocumentBuilderFactory().newDocumentBuilder();

   2

       BaseResourceCollectionContainer c = (BaseResourceCollectionContainer)super.clone();

   2 | BaseResourceCollectionContainer c = (BaseResourceCollectionContainer)super.clone();

   Preondition Violations
   Unmatched statement BaseResourceCollectionContainer c=(BaseResourceCollectionContainer)super.clone(); 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

       c.rc = new ArrayList(rc);

   4

       c.coll = null;

   5

       return c;

   5 | return c;

   Preondition Violations
   Unmatched return c;

   Precondition Violations (4)
   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 BaseResourceCollectionContainer c=(BaseResourceCollectionContainer)super.clone(); 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
   4 | Unmatched return c;