try { messageDigest = MessageDigest.getInstance(algorithm); } catch (NoSuchAlgorithmException noalgo) { throw new BuildException(noalgo, getLocation()); }
try { rdr = new InputStreamReader(cat, encoding); } catch (UnsupportedEncodingException e) { throw new BuildException(e); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/Checksum.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/resources/Tokens.java
Method name: boolean validateAndExecute() Method name: Collection getCollection()
Number of AST nodes: 2 Number of AST nodes: 2
1
try {
1
try {
2
                messageDigest = MessageDigest.getInstance(algorithm);
2
                rdr = new InputStreamReader(cat, encoding);
3
            } catch (NoSuchAlgorithmException noalgo) {
3
            } catch (UnsupportedEncodingException e) {
4
                throw new BuildException(noalgo, getLocation());
4
                throw new BuildException(e);
5
            }
5
            }
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)0.3
Clones locationClones are in different classes having the same super class
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)4.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    32
    try
    32
    try
    11
    try
    Differences
    Expression1Expression2Difference
    java.security.NoSuchAlgorithmExceptionjava.io.UnsupportedEncodingExceptionSUBCLASS_TYPE_MISMATCH
    noalgoeVARIABLE_NAME_MISMATCH
    java.security.NoSuchAlgorithmExceptionjava.io.UnsupportedEncodingExceptionSUBCLASS_TYPE_MISMATCH
    new BuildException(noalgo,getLocation())new BuildException(e)ARGUMENT_NUMBER_MISMATCH
    11
    try
                                                                                            
    12
    rdr = new InputStreamReader(cat, encoding);
    33
    messageDigest = MessageDigest.getInstance(algorithm);
    33
    messageDigest = MessageDigest.getInstance(algorithm);
    Preondition Violations
    Unmatched statement messageDigest=MessageDigest.getInstance(algorithm); 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
                                                                                                                  
    Precondition Violations (1)
    Row Violation
    1Unmatched statement messageDigest=MessageDigest.getInstance(algorithm); 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