DigestInputStream dis = new DigestInputStream(fis, messageDigest); while (dis.read(buf, 0, readBufferSize) != -1) { // Empty statement } dis.close(); fis.close(); fis = null; byte[] fileDigest = messageDigest.digest ();
DigestInputStream dis = new DigestInputStream(fis, messageDigest); while (dis.read(buf, 0, readBufferSize) != -1) { // do nothing } dis.close(); fis.close(); fis = null; byte[] fileDigest = messageDigest.digest();
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/selectors/modifiedselector/DigestAlgorithm.java
Method name: boolean generateChecksums() Method name: String getValue(File)
Number of AST nodes: 6 Number of AST nodes: 6
1
DigestInputStream dis = new DigestInputStream(fis,
1
DigestInputStream dis = new DigestInputStream(fis,
2
                                                              messageDigest);
2
                                                              messageDigest);
3
                while (dis.read(buf, 0, readBufferSize) != -1) {
3
                while (dis.read(buf, 0, readBufferSize) != -1) {
4
                    // Empty statement
4
                    // do nothing
5
                }
5
                }
6
                dis.close();
6
                dis.close();
7
                fis.close();
7
                fis.close();
8
                fis = null;
8
                fis = null;
9
                byte[] fileDigest = messageDigest.digest ();
9
                byte[] fileDigest = messageDigest.digest();
Summary
Number of common nesting structure subtrees1
Number of refactorable cases1
Number of non-refactorable cases0
Time elapsed for finding largest common nesting structure subtrees (ms)0.3
Clones locationClones are in different classes
Number of node comparisons20
  1. {Refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.1
    Clone typeType 1
    Mapped Statements
    ID Statement ID Statement
    12
    DigestInputStream dis = new DigestInputStream(fis, messageDigest);
    11
    DigestInputStream dis = new DigestInputStream(fis, messageDigest);
    13
    while (dis.read(buf, 0, readBufferSize) != -1)
    12
    while (dis.read(buf, 0, readBufferSize) != -1)
    14
    dis.close();
    13
    dis.close();
    15
    fis.close();
    14
    fis.close();
    16
    fis = null;
    15
    fis = null;
    17
    byte[] fileDigest = messageDigest.digest();
    16
    byte[] fileDigest = messageDigest.digest();
    Precondition Violations (0)
    Row Violation