if (in != null) { try { in.close(); in = null; } catch (IOException e) { // ignore } }
if (out != null) { try { out.flush(); out.close(); out = null; } catch (IOException e) { // ignore } }
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/tests/junit/org/apache/tools/mail/MailMessageTest.java
Method name: void disconnect() Method name: void disconnect()
Number of AST nodes: 4 Number of AST nodes: 5
1
if (in != null) {
1
if (out != null) {
2
                try {
2
                try {
3
                    in
3
                    out.flush();
4
.close();
4
                    out.close();
5
                    in = null;
5
                    out = null;
6
                } catch (IOException e) {
6
                } catch (IOException e) {
7
                    // ignore
7
                    // ignore
8
                }
8
                }
9
            }
9
            }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.2
Clones locationClones are in the same method
Number of node comparisons13
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    6
    if (in != null)
    6
    if (in != null)
    1
    if (out != null)
    Differences
    Expression1Expression2Difference
    inoutVARIABLE_NAME_MISMATCH
    java.io.BufferedReaderjava.io.BufferedWriterVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.io.BufferedReader of variable in does not match with type java.io.BufferedWriter of variable out
    • Make classes java.io.BufferedReader and java.io.BufferedWriter extend a common superclass
    1
    if (out != null)
    7
    try
    2
    try
                                  
    3
    out.flush();
    Preondition Violations
    Unmatched statement out.flush(); 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
    out.flush();
    8
    in.close();
    8
    in.close();
    4
    out.close();
    Differences
    Expression1Expression2Difference
    inoutVARIABLE_NAME_MISMATCH
    java.io.BufferedReaderjava.io.BufferedWriterVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.io.BufferedReader of variable in does not match with type java.io.BufferedWriter of variable out
    • Make classes java.io.BufferedReader and java.io.BufferedWriter extend a common superclass
    4
    out.close();
                            
    5
    out = null;
    9
    in = null;
                          
    Precondition Violations (3)
    Row Violation
    1Type java.io.BufferedReader of variable in does not match with type java.io.BufferedWriter of variable out
    2Unmatched statement out.flush(); 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
    3Type java.io.BufferedReader of variable in does not match with type java.io.BufferedWriter of variable out