if (null != requiredSpecificationVersion) { if (null == specificationVersion || !isCompatible(specificationVersion, requiredSpecificationVersion)) { return REQUIRE_SPECIFICATION_UPGRADE; } }
if (null != implementationVendor) { if (null == otherImplementationVendor || !implementationVendor.equals(otherImplementationVendor)) { return REQUIRE_VENDOR_SWITCH; } }
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 != requiredSpecificationVersion) {
1
if (null != implementationVendor) {
2
            if (null == specificationVersion
2
            if (null == otherImplementationVendor
3
                || !isCompatible(specificationVersion, requiredSpecificationVersion)) {
3
                || !implementationVendor.equals(otherImplementationVendor)) {
4
                return REQUIRE_SPECIFICATION_UPGRADE;
4
                return REQUIRE_VENDOR_SWITCH;
5
            }
5
            }
6
        }
6
        }
Summary
Number of common nesting structure subtrees0
Number of refactorable cases0
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 comparisons1