if (jrePackages == null) { buildJrePackages(); } return jrePackages;
if (path == null) { path = new Union(); path.setProject(getProject()); } return path;
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/JavaEnvUtils.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/PathConvert.java
Method name: Vector getJrePackages() Method name: Union getPath()
Number of AST nodes: 3 Number of AST nodes: 4
1
if (jrePackages == null) {
1
if (path == null) {
2
            buildJrePackages(
2
            path = new Union();
3
);
3
            path.setProject(getProject());
4
        }
4
        }
5
        return jrePackages;
5
        return path;
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)0.1
Clones locationClones are in different classes
Number of node comparisons7
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.7
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (jrePackages == null)
    1
    if (jrePackages == null)
    1
    if (path == null)
    Differences
    Expression1Expression2Difference
    jrePackagespathVARIABLE_NAME_MISMATCH
    java.util.Vectororg.apache.tools.ant.types.resources.UnionVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.Vector of variable jrePackages does not match with type org.apache.tools.ant.types.resources.Union of variable path
    • Make classes java.util.Vector and org.apache.tools.ant.types.resources.Union extend a common superclass
    1
    if (path == null)
                                            
    2
    path = new Union();
    Preondition Violations
    Unmatched statement path=new Union(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2
    path = new Union();
    2
    buildJrePackages();
    2
    buildJrePackages();
    3
    path.setProject(getProject());
    Differences
    Expression1Expression2Difference
    buildJrePackagessetProjectMETHOD_INVOCATION_NAME_MISMATCH
    buildJrePackages()path.setProject(getProject())ARGUMENT_NUMBER_MISMATCH
    pathMISSING_METHOD_INVOCATION_EXPRESSION
    Preondition Violations
    Expression buildJrePackages() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    • Inline private method buildJrePackages
    Expression buildJrePackages() is a void method call, and thus it cannot be parameterized
    Expression path.setProject(getProject()) is a void method call, and thus it cannot be parameterized
    Expression buildJrePackages() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    • Inline private method buildJrePackages
    Expression buildJrePackages() is a void method call, and thus it cannot be parameterized
    Expression path.setProject(getProject()) is a void method call, and thus it cannot be parameterized
    3
    path.setProject(getProject());
    3
    return jrePackages;
                                                
                                  
    4
    return path;
    Preondition Violations
    Unmatched return path;
    4
    return path;
    Precondition Violations (9)
    Row Violation
    1Type java.util.Vector of variable jrePackages does not match with type org.apache.tools.ant.types.resources.Union of variable path
    2Unmatched statement path=new Union(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    3Expression buildJrePackages() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression buildJrePackages() is a void method call, and thus it cannot be parameterized
    5Expression path.setProject(getProject()) is a void method call, and thus it cannot be parameterized
    6Expression buildJrePackages() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Expression buildJrePackages() is a void method call, and thus it cannot be parameterized
    8Expression path.setProject(getProject()) is a void method call, and thus it cannot be parameterized
    9Unmatched return path;