101-2-3

while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd) { String patDir = patDirs[patIdxStart]; if (patDir.equals("**")) { break; } if (!match(patDir, strDirs[strIdxStart], isCaseSensitive)) { patDirs = null; strDirs = null; return false; } patIdxStart++; strIdxStart++; }
while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd) { String patDir = patDirs[patIdxStart]; if (patDir.equals("**")) { break; } if (!match(patDir, strDirs[strIdxStart], isCaseSensitive)) { return false; } patIdxStart++; strIdxStart++; }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/selectors/SelectorUtils.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/selectors/SelectorUtils.java
Method name: `boolean matchPath(String, String, boolean)` |  | Method name: `boolean matchPatternStart(String, String, boolean)`
Number of AST nodes: 10 |  | Number of AST nodes: 8

1

    while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd) {↵

1

    while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd) {↵

2

                String patDir = patDirs[patIdxStart];↵

2

                String patDir = patDirs[patIdxStart];↵

3

                if (patDir.equals("**")) {↵

3

                if (patDir.equals("**")) {↵

4

                    break;↵

4

                    break;↵

5

                }↵

5

                }↵

6

                if (!match(patDir, strDirs[strIdxStart], isCaseSensitive)) {↵

6

                if (!match(patDir, strDirs[strIdxStart], isCaseSensitive)) {↵

7

                    patDirs = null;↵

8

                    strDirs = null;↵

9

                    return false;↵

7

                    return false;↵

10

                }↵

8

                }↵

11

                patIdxStart++;↵

9

                patIdxStart++;↵

12

                strIdxStart++;↵

10

                strIdxStart++;↵

13

            }

11

            }

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) | 0.5
Clones location | Clones are declared in the same class
Number of node comparisons | 38

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 8
   Number of unmapped statements in the first code fragment | 2
   Number of unmapped statements in the second code fragment | 0
   Time elapsed for statement mapping (ms) | 2.0
   Clone type | Type 3

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

   7

       while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd)

   9

       while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd)

   8

       String patDir = patDirs[patIdxStart];

   10

       String patDir = patDirs[patIdxStart];

   9

       if (patDir.equals("**"))

   11

       if (patDir.equals("**"))

   10

       break;

   12

       break;

   11

       if (!match(patDir, strDirs[strIdxStart], isCaseSensitive))

   13

       if (!match(patDir, strDirs[strIdxStart], isCaseSensitive))

   12

       patDirs = null;

   12 | patDirs = null;

   Preondition Violations
   Unmatched statement patDirs=null; cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted

   13

       strDirs = null;

   13 | strDirs = null;

   Preondition Violations
   Unmatched statement strDirs=null; cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted

   14

       return false;

   14 | return false;
   14 | return false;

   Preondition Violations
   Conditional return false;
   Conditional return false;

   14

       return false;

   15

       patIdxStart++;

   15

       patIdxStart++;

   16

       strIdxStart++;

   16

       strIdxStart++;

   Precondition Violations (5)
   Row | Violation
   --- | ---
   1 | Unmatched statement patDirs=null; cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
   2 | Unmatched statement strDirs=null; cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
   3 | Clone fragment #1 returns variables strIdxStart, patIdxStart , while Clone fragment #2 returns variables strIdxStart, patIdxStart
   4 | Conditional return false;
   5 | Conditional return false;