158-201-212

try { return loader.findClass(classname); } catch (SecurityException se) { // class found but restricted name; this is // actually the case we're looking for in JDK 1.3+, // so catch the exception and return return null; }
try { return (Node) elementAt(i); } catch (ArrayIndexOutOfBoundsException e) { return null; // conforming to NodeList interface }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/condition/HasMethod.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/junit/DOMUtil.java
Method name: `Class loadClass(String)` |  | Method name: `Node item(int)`
Number of AST nodes: 2 |  | Number of AST nodes: 2

1

    try {↵

1

    try {↵

2

                            return loader.findClass(classname);↵

2

                    ↵

3

                        } catch (Security↵

3

    return (Node) elementAt(i);↵

4

    Exception se) {↵

4

                } catch (ArrayIndexOutOfBoundsException e) {↵

5

                            // class found but restricted name; this is↵

5

                    ↵

6

                            // actually the case we're looking for in JDK 1.3+,↵

6

    return null; // conformin↵

7

                            // so catch the exception and return↵

8

                            return null;↵

9

            ↵

7

    g to NodeList interface↵

10

                }

8

                }

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) | 0.1
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) | 0.4
   Clone type | Type 2

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

   7

       try

   7 | try
   1 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.lang.SecurityException | java.lang.ArrayIndexOutOfBoundsException | SUBCLASS_TYPE_MISMATCH
   se | e | VARIABLE_NAME_MISMATCH
   java.lang.SecurityException | java.lang.ArrayIndexOutOfBoundsException | SUBCLASS_TYPE_MISMATCH

   1

       try

   2 | return (Node)elementAt(i);

   Preondition Violations
   Unmatched return (Node)elementAt(i);

   2

       return (Node)elementAt(i);

   8

       return loader.findClass(classname);

   8 | return loader.findClass(classname);

   Preondition Violations
   Unmatched statement return loader.findClass(classname); 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 loader.findClass(classname);

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Unmatched return (Node)elementAt(i);
   2 | Unmatched statement return loader.findClass(classname); 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 loader.findClass(classname);