158-1-3

try { BaseResourceCollectionContainer c = (BaseResourceCollectionContainer) super.clone(); c.rc = new ArrayList(rc); c.coll = null; return c; } catch (CloneNotSupportedException e) { throw new BuildException(e); }
try { Path result = (Path) super.clone(); result.union = union == null ? union : (Union) union.clone(); return result; } catch (CloneNotSupportedException 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/types/Path.java
Method name: `Object clone()` |  | Method name: `Object clone()`
Number of AST nodes: 5 |  | Number of AST nodes: 4

1

    try {↵

1

    try {↵

2

                BaseResourceCollectionContainer c↵

2

                ↵

3

                    = (BaseResourceCollectionContainer) super.clone();↵

3

    Path result = (Path) super.clone();↵

4

                c.rc = new ArrayList(rc);↵

4

                ↵

5

                c.coll = null;↵

5

    result.union = union == null ? union : (Union) union.clone();↵

6

                return c;↵

6

                return result;↵

7

            } catch (CloneNotSupportedException e) {↵

7

            } catch (CloneNotSupportedException e) {↵

8

                throw new BuildException(e);↵

8

                throw new BuildException(e);↵

9

            }

9

            }

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 having the same super class
Number of node comparisons | 20

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 3
   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) | 1.0
   Clone type | Type 3

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

   1

       try

   1

       try

   2

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

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

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   org.apache.tools.ant.types.resources.BaseResourceCollectionContainer | org.apache.tools.ant.types.Path | SUBCLASS_TYPE_MISMATCH
   c | result | VARIABLE_NAME_MISMATCH
   org.apache.tools.ant.types.resources.BaseResourceCollectionContainer | org.apache.tools.ant.types.Path | SUBCLASS_TYPE_MISMATCH
   org.apache.tools.ant.types.resources.BaseResourceCollectionContainer | org.apache.tools.ant.types.Path | SUBCLASS_TYPE_MISMATCH

   Preondition Violations
   Expression (BaseResourceCollectionContainer)super.clone() is a method call throwing exception(s) that should be caught by a try block that will be extracted
   Expression (Path)super.clone() is a method call throwing exception(s) that should be caught by a try block that will be extracted

   2

       Path result = (Path)super.clone();

   3

       result.union = union == null ? union : (Union)union.clone();

   3

       c.rc = new ArrayList(rc);

   4

       c.coll = null;

   5

       return c;

   5 | return c;
   4 | return result;

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   c | result | VARIABLE_NAME_MISMATCH
   org.apache.tools.ant.types.resources.BaseResourceCollectionContainer | org.apache.tools.ant.types.Path | SUBCLASS_TYPE_MISMATCH

   4

       return result;

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Expression (BaseResourceCollectionContainer)super.clone() is a method call throwing exception(s) that should be caught by a try block that will be extracted
   2 | Expression (Path)super.clone() is a method call throwing exception(s) that should be caught by a try block that will be extracted
   3 | Clone fragment #1 returns variable c with type org.apache.tools.ant.types.resources.BaseResourceCollectionContainer , while Clone fragment #2 returns variable result with type org.apache.tools.ant.types.Path