if (null != specificationVersion) { sb.append(SPECIFICATION_VERSION); sb.append(brace); sb.append(specificationVersion); sb.append(StringUtils.LINE_SEP); } if (null != specificationVendor) { sb.append(SPECIFICATION_VENDOR); sb.append(brace); sb.append(specificationVendor); sb.append(StringUtils.LINE_SEP); } if (null != implementationTitle) { sb.append(IMPLEMENTATION_TITLE); sb.append(brace); sb.append(implementationTitle); sb.append(StringUtils.LINE_SEP); } if (null != implementationVersion) { sb.append(IMPLEMENTATION_VERSION); sb.append(brace); sb.append(implementationVersion); sb.append(StringUtils.LINE_SEP); } if (null != implementationVendor) { sb.append(IMPLEMENTATION_VENDOR); sb.append(brace); sb.append(implementationVendor); sb.append(StringUtils.LINE_SEP); }
if (null != specificationVendor) { sb.append(SPECIFICATION_VENDOR); sb.append(brace); sb.append(specificationVendor); sb.append(StringUtils.LINE_SEP); } if (null != implementationVersion) { sb.append(IMPLEMENTATION_VERSION); sb.append(brace); sb.append(implementationVersion); sb.append(StringUtils.LINE_SEP); } if (null != implementationVendorID) { sb.append(IMPLEMENTATION_VENDOR_ID); sb.append(brace); sb.append(implementationVendorID); sb.append(StringUtils.LINE_SEP); } if (null != implementationVendor) { sb.append(IMPLEMENTATION_VENDOR); sb.append(brace); sb.append(implementationVendor); sb.append(StringUtils.LINE_SEP); } if (null != implementationURL) { sb.append(IMPLEMENTATION_URL); sb.append(brace); sb.append(implementationURL); sb.append(StringUtils.LINE_SEP); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Specification.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Extension.java
Method name: String toString() Method name: String toString()
Number of AST nodes: 25 Number of AST nodes: 25
1
if (null != specificationVersion) {
1
if (null != specificationVendor) {
2
            sb.append(SPECIFICATION_VERSION);
2
            sb.append(SPECIFICATION_VENDOR);
3
            sb.append(brace);
3
            sb.append(brace);
4
            sb.append(specificationVersion);
4
            sb.append(specificationVendor);
5
            sb.append(StringUtils.LINE_SEP);
5
            sb.append(StringUtils.LINE_SEP);
6
        }
6
        }
7
        if (null != specificationVendor) {
7
        if (null != implementationVersion) {
8
            sb.append(SPECIFICATION_VENDOR);
8
            sb.append(IMPLEMENTATION_VERSION);
9
            sb.append(brace);
9
            sb.append(brace);
10
            sb.append(specificationVendor);
10
            sb.append(implementationVersion);
11
            sb.append(StringUtils.LINE_SEP);
11
            sb.append(StringUtils.LINE_SEP);
12
        }
12
        }
13
        if (null != implementationTitle) {
13
        if (null != implementationVendorID) {
14
            sb.append(IMPLEMENTATION_TITLE);
14
            sb.append(IMPLEMENTATION_VENDOR_ID);
15
            sb.append(brace);
15
            sb.append(brace);
16
            sb.append(implementationTitle);
16
            sb.append(implementationVendorID);
17
            sb.append(StringUtils.LINE_SEP);
17
            sb.append(StringUtils.LINE_SEP);
18
        }
18
        }
19
        if (null != implementationVersion) {
19
        if (null != implementationVendor) {
20
            sb.append(IMPLEMENTATION_VERSION);
20
            sb.append(IMPLEMENTATION_VENDOR);
21
            sb.append(brace);
21
            sb.append(brace);
22
            sb.append(implementationVersion);
22
            sb.append(implementationVendor);
23
            sb.append(StringUtils.LINE_SEP);
23
            sb.append(StringUtils.LINE_SEP);
24
        }
24
        }
25
        if (null != implementationVendor) {
25
        if (null != implementationURL) {
26
            sb.append(IMPLEMENTATION_VENDOR);
26
            sb.append(IMPLEMENTATION_URL);
27
            sb.append(brace);
27
            sb.append(brace);
28
            sb.append(implementationVendor);
28
            sb.append(implementationURL);
29
            sb.append(StringUtils.LINE_SEP);
29
            sb.append(StringUtils.LINE_SEP);
30
        }
30
        }
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)1.0
Clones locationClones are in different classes
Number of node comparisons385
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements25
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)21.8
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    6
    if (null != specificationVersion)
    6
    if (null != specificationVersion)
    11
    if (null != specificationVendor)
    Differences
    Expression1Expression2Difference
    specificationVersionspecificationVendorVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimaljava.lang.StringVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable specificationVendor
    • Make classes org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal and java.lang.String extend a common superclass
    11
    if (null != specificationVendor)
    7
    sb.append(SPECIFICATION_VERSION);
    7
    sb.append(SPECIFICATION_VERSION);
    12
    sb.append(SPECIFICATION_VENDOR);
    Differences
    Expression1Expression2Difference
    SPECIFICATION_VERSIONSPECIFICATION_VENDORVARIABLE_NAME_MISMATCH
    12
    sb.append(SPECIFICATION_VENDOR);
    8
    sb.append(brace);
    13
    sb.append(brace);
    9
    sb.append(specificationVersion);
    9
    sb.append(specificationVersion);
    14
    sb.append(specificationVendor);
    Differences
    Expression1Expression2Difference
    specificationVersionspecificationVendorVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimaljava.lang.StringVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable specificationVendor
    • Make classes org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal and java.lang.String extend a common superclass
    14
    sb.append(specificationVendor);
    10
    sb.append(StringUtils.LINE_SEP);
    15
    sb.append(StringUtils.LINE_SEP);
    11
    if (null != specificationVendor)
    11
    if (null != specificationVendor)
    16
    if (null != implementationVersion)
    Differences
    Expression1Expression2Difference
    specificationVendorimplementationVersionVARIABLE_NAME_MISMATCH
    java.lang.Stringorg.apache.tools.ant.taskdefs.optional.extension.DeweyDecimalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable specificationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    • Make classes java.lang.String and org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal extend a common superclass
    16
    if (null != implementationVersion)
    12
    sb.append(SPECIFICATION_VENDOR);
    12
    sb.append(SPECIFICATION_VENDOR);
    17
    sb.append(IMPLEMENTATION_VERSION);
    Differences
    Expression1Expression2Difference
    SPECIFICATION_VENDORIMPLEMENTATION_VERSIONVARIABLE_NAME_MISMATCH
    17
    sb.append(IMPLEMENTATION_VERSION);
    13
    sb.append(brace);
    18
    sb.append(brace);
    14
    sb.append(specificationVendor);
    14
    sb.append(specificationVendor);
    19
    sb.append(implementationVersion);
    Differences
    Expression1Expression2Difference
    specificationVendorimplementationVersionVARIABLE_NAME_MISMATCH
    java.lang.Stringorg.apache.tools.ant.taskdefs.optional.extension.DeweyDecimalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable specificationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    • Make classes java.lang.String and org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal extend a common superclass
    19
    sb.append(implementationVersion);
    15
    sb.append(StringUtils.LINE_SEP);
    20
    sb.append(StringUtils.LINE_SEP);
    16
    if (null != implementationTitle)
    16
    if (null != implementationTitle)
    21
    if (null != implementationVendorID)
    Differences
    Expression1Expression2Difference
    implementationTitleimplementationVendorIDVARIABLE_NAME_MISMATCH
    21
    if (null != implementationVendorID)
    17
    sb.append(IMPLEMENTATION_TITLE);
    17
    sb.append(IMPLEMENTATION_TITLE);
    22
    sb.append(IMPLEMENTATION_VENDOR_ID);
    Differences
    Expression1Expression2Difference
    IMPLEMENTATION_TITLEIMPLEMENTATION_VENDOR_IDVARIABLE_NAME_MISMATCH
    22
    sb.append(IMPLEMENTATION_VENDOR_ID);
    18
    sb.append(brace);
    23
    sb.append(brace);
    19
    sb.append(implementationTitle);
    19
    sb.append(implementationTitle);
    24
    sb.append(implementationVendorID);
    Differences
    Expression1Expression2Difference
    implementationTitleimplementationVendorIDVARIABLE_NAME_MISMATCH
    24
    sb.append(implementationVendorID);
    20
    sb.append(StringUtils.LINE_SEP);
    25
    sb.append(StringUtils.LINE_SEP);
    21
    if (null != implementationVersion)
    21
    if (null != implementationVersion)
    26
    if (null != implementationVendor)
    Differences
    Expression1Expression2Difference
    implementationVersionimplementationVendorVARIABLE_NAME_MISMATCH
    26
    if (null != implementationVendor)
    22
    sb.append(IMPLEMENTATION_VERSION);
    22
    sb.append(IMPLEMENTATION_VERSION);
    27
    sb.append(IMPLEMENTATION_VENDOR);
    Differences
    Expression1Expression2Difference
    IMPLEMENTATION_VERSIONIMPLEMENTATION_VENDORVARIABLE_NAME_MISMATCH
    27
    sb.append(IMPLEMENTATION_VENDOR);
    23
    sb.append(brace);
    28
    sb.append(brace);
    24
    sb.append(implementationVersion);
    24
    sb.append(implementationVersion);
    29
    sb.append(implementationVendor);
    Differences
    Expression1Expression2Difference
    implementationVersionimplementationVendorVARIABLE_NAME_MISMATCH
    29
    sb.append(implementationVendor);
    25
    sb.append(StringUtils.LINE_SEP);
    30
    sb.append(StringUtils.LINE_SEP);
    26
    if (null != implementationVendor)
    26
    if (null != implementationVendor)
    31
    if (null != implementationURL)
    Differences
    Expression1Expression2Difference
    implementationVendorimplementationURLVARIABLE_NAME_MISMATCH
    31
    if (null != implementationURL)
    27
    sb.append(IMPLEMENTATION_VENDOR);
    27
    sb.append(IMPLEMENTATION_VENDOR);
    32
    sb.append(IMPLEMENTATION_URL);
    Differences
    Expression1Expression2Difference
    IMPLEMENTATION_VENDORIMPLEMENTATION_URLVARIABLE_NAME_MISMATCH
    32
    sb.append(IMPLEMENTATION_URL);
    28
    sb.append(brace);
    33
    sb.append(brace);
    29
    sb.append(implementationVendor);
    29
    sb.append(implementationVendor);
    34
    sb.append(implementationURL);
    Differences
    Expression1Expression2Difference
    implementationVendorimplementationURLVARIABLE_NAME_MISMATCH
    34
    sb.append(implementationURL);
    30
    sb.append(StringUtils.LINE_SEP);
    35
    sb.append(StringUtils.LINE_SEP);
    Precondition Violations (4)
    Row Violation
    1Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable specificationVendor
    2Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable specificationVendor
    3Type java.lang.String of variable specificationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    4Type java.lang.String of variable specificationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion