if (null != requiredImplementationVendorID) { if (null == implementationVendorID || !implementationVendorID.equals(requiredImplementationVendorID)) { return REQUIRE_VENDOR_SWITCH; } }
if (null != implementationVersion) { if (null == otherImplementationVersion || !implementationVersion.equals(otherImplementationVersion)) { return REQUIRE_IMPLEMENTATION_CHANGE; } }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Extension.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Specification.java
Method name: Compatibility getCompatibilityWith(Extension) Method name: Compatibility getCompatibilityWith(Specification)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (null != requiredImplementationVendorID) {
1
if (null != implementationVersion) {
2
            if (null == implementationVendorID
2
            if (null == otherImplementationVersion
3
                || !implementationVendorID.equals(requiredImplementationVendorID)) {
3
                || !implementationVersion.equals(otherImplementationVersion)) {
4
                return REQUIRE_VENDOR_SWITCH;
4
                return REQUIRE_IMPLEMENTATION_CHANGE;
5
            }
5
            }
6
        }
6
        }
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)0.2
Clones locationClones are in different classes
Number of node comparisons5
  1. {Refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)0.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    8
    if (null != requiredImplementationVendorID)
    8
    if (null != requiredImplementationVendorID)
    12
    if (null != implementationVersion)
    Differences
    Expression1Expression2Difference
    requiredImplementationVendorIDimplementationVersionVARIABLE_NAME_MISMATCH
    12
    if (null != implementationVersion)
    9
    if (null == implementationVendorID || !implementationVendorID.equals(requiredImplementationVendorID))
    9
    if (null == implementationVendorID || !implementationVendorID.equals(requiredImplementationVendorID))
    13
    if (null == otherImplementationVersion || !implementationVersion.equals(otherImplementationVersion))
    Differences
    Expression1Expression2Difference
    implementationVendorIDotherImplementationVersionVARIABLE_NAME_MISMATCH
    requiredImplementationVendorIDotherImplementationVersionVARIABLE_NAME_MISMATCH
    implementationVendorIDimplementationVersionVARIABLE_NAME_MISMATCH
    13
    if (null == otherImplementationVersion || !implementationVersion.equals(otherImplementationVersion))
    10
    return REQUIRE_VENDOR_SWITCH;
    10
    return REQUIRE_VENDOR_SWITCH;
    14
    return REQUIRE_IMPLEMENTATION_CHANGE;
    Differences
    Expression1Expression2Difference
    REQUIRE_VENDOR_SWITCHREQUIRE_IMPLEMENTATION_CHANGEVARIABLE_NAME_MISMATCH
    14
    return REQUIRE_IMPLEMENTATION_CHANGE;
    Precondition Violations (0)
    Row Violation