if (sock != null) { try { sock.close(); sock = null; } catch (IOException e) { // ignore } }
if (device != null) { try { device.close(); } catch (IOException ioex) { //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/org/apache/tools/ant/util/FileUtils.java
Method name: void disconnect() Method name: void close(Writer)
Number of AST nodes: 4 Number of AST nodes: 3
1
if (sock != null) {
1
if (device != null) {
2
                try {
2
            try {
3
                    sock.close();
3
                device.close();
4
                    sock = null;
5
                } catch (IOException e) {
4
            } catch (IOException 
6
    
5
ioex) {
7
                // ignore
6
                //ignore
8
                }
7
            
9
    
8
}
10
        }
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 different classes
Number of node comparisons7
  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 fragment0
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    10
    if (sock != null)
    10
    if (sock != null)
    1
    if (device != null)
    Differences
    Expression1Expression2Difference
    sockdeviceVARIABLE_NAME_MISMATCH
    java.net.Socketjava.io.WriterVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.net.Socket of variable sock does not match with type java.io.Writer of variable device
    • Make classes java.net.Socket and java.io.Writer extend a common superclass
    1
    if (device != null)
    11
    try
    11
    try
    2
    try
    Differences
    Expression1Expression2Difference
    eioexVARIABLE_NAME_MISMATCH
    2
    try
    12
    sock.close();
    12
    sock.close();
    3
    device.close();
    Differences
    Expression1Expression2Difference
    sockdeviceVARIABLE_NAME_MISMATCH
    java.net.Socketjava.io.WriterVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.net.Socket of variable sock does not match with type java.io.Writer of variable device
    • Make classes java.net.Socket and java.io.Writer extend a common superclass
    3
    device.close();
    13
    sock = null;
                                
    Precondition Violations (2)
    Row Violation
    1Type java.net.Socket of variable sock does not match with type java.io.Writer of variable device
    2Type java.net.Socket of variable sock does not match with type java.io.Writer of variable device