158-68-139

if (ssock != null) { try { ssock.close(); ssock = null; } catch (IOException e) { // ignore } }
if (classLoader != null) { try { clazz = classLoader.loadClass(helperClass); } catch (ClassNotFoundException ex) { // try next method } }

Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/tests/junit/org/apache/tools/mail/MailMessageTest.java |  | File path: /apache-ant-1.7.0/src/org/apache/tools/ant/ProjectHelper.java
Method name: `void disconnect()` |  | Method name: `ProjectHelper newHelper(String)`
Number of AST nodes: 4 |  | Number of AST nodes: 3

1

    if (ssock != null) {↵

1

    if (classLoader != null) {↵

2

                    try {↵

2

                    try {↵

3

                        ssock.close();↵

3

                        ↵

4

                        ssock = null;↵

4

    clazz = classLoader.loadClass(helperClass);↵

5

                    } catch (IOException e) {↵

5

                    } catch (ClassNotFoundException ex) {↵

6

                        // ignore↵

6

                        // try next method↵

7

                    }↵

7

                    }↵

8

                }

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) | 0.2
Clones location | Clones are in different classes
Number of node comparisons | 7

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 2
   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) | 0.6
   Clone type | Type 3

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

   14

       if (ssock != null)

   14 | if (ssock != null)
   4 | if (classLoader != null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   ssock | classLoader | VARIABLE_NAME_MISMATCH
   java.net.ServerSocket | java.lang.ClassLoader | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.net.ServerSocket of variable ssock does not match with type java.lang.ClassLoader of variable classLoader
   - Make classes java.net.ServerSocket and java.lang.ClassLoader extend a common superclass

   4

       if (classLoader != null)

   15

       try

   15 | try
   5 | try

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   java.io.IOException | java.lang.ClassNotFoundException | SUBCLASS_TYPE_MISMATCH
   e | ex | VARIABLE_NAME_MISMATCH
   java.io.IOException | java.lang.ClassNotFoundException | SUBCLASS_TYPE_MISMATCH

   5

       try

   6 | clazz = classLoader.loadClass(helperClass);

   Preondition Violations
   Unmatched statement clazz=classLoader.loadClass(helperClass); 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

   6

       clazz = classLoader.loadClass(helperClass);

   16

       ssock.close();

   16 | ssock.close();

   Preondition Violations
   Unmatched statement ssock.close(); 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

   17

       ssock = null;

   Precondition Violations (3)
   Row | Violation
   --- | ---
   1 | Type java.net.ServerSocket of variable ssock does not match with type java.lang.ClassLoader of variable classLoader
   2 | Unmatched statement clazz=classLoader.loadClass(helperClass); 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 statement ssock.close(); 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