173-21-145

if (itemPropertyDescriptors == null) { super.getPropertyDescriptors(object); addSerializablePropertyDescriptor(object); } return itemPropertyDescriptors;
if (validatorMap == null) { validatorMap = new Hashtable<EClass, FeatureMapUtil.Validator>(); } return validatorMap;

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/ecore/provider/EDataTypeItemProvider.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/util/BasicExtendedMetaData.java
Method name: `List getPropertyDescriptors(Object)` |  | Method name: `Map getValidatorMap()`
Number of AST nodes: 4 |  | Number of AST nodes: 3

1

    if (itemPropertyDescriptors == null)↵

1

    if (validatorMap == null)↵

2

        {↵

2

          {↵

3

          super.getPropertyDescriptors(object);↵

3

          ↵

4

          addSerializablePropertyDescriptor(object);↵

4

      validatorMap = new Hashtable<EClass, FeatureMapUtil.Validator>();↵

5

        }↵

5

          }↵

6

        return itemPropertyDescriptors;

6

          return validatorMap;

See real code fragment |  | See real code fragment

Summary
Number of common nesting structure subtrees | 1
Number of refactorable cases | 0
Number of non-refactorable cases | 1
Time elapsed for finding largest common nesting structure subtrees (ms) | 0.2
Clones location | Clones are in different classes
Number of node comparisons | 7

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 3
   Number of unmapped statements in the second code fragment | 2
   Time elapsed for statement mapping (ms) | 62.0
   Clone type | Type 3

   Mapped Statements
   ID | Statement |  | ID | Statement
   --- | --- | --- | --- | ---

   1

       if (itemPropertyDescriptors == null)

   1 | if (itemPropertyDescriptors == null)
   1 | if (validatorMap == null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   itemPropertyDescriptors | validatorMap | VARIABLE_NAME_MISMATCH
   java.util.List | java.util.Map | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.util.List<org.eclipse.emf.edit.provider.IItemPropertyDescriptor> of variable itemPropertyDescriptors does not match with type java.util.Map<org.eclipse.emf.ecore.EClass,org.eclipse.emf.ecore.util.FeatureMapUtil.Validator> of variable validatorMap
   - Make classes java.util.List and java.util.Map extend a common superclass

   1

       if (validatorMap == null)

   2 | validatorMap = new Hashtable<EClass, FeatureMapUtil.Validator>();

   Preondition Violations
   Unmatched statement validatorMap=new Hashtable<EClass,FeatureMapUtil.Validator>(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   2

       validatorMap = new Hashtable<EClass, FeatureMapUtil.Validator>();

   2

       super.getPropertyDescriptors(object);

   3

       addSerializablePropertyDescriptor(object);

   3 | addSerializablePropertyDescriptor(object);

   Preondition Violations
   Unmatched statement addSerializablePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   3 | return validatorMap;

   Preondition Violations
   Unmatched return validatorMap;

   3

       return validatorMap;

   4

       return itemPropertyDescriptors;

   4 | return itemPropertyDescriptors;

   Preondition Violations
   Unmatched return itemPropertyDescriptors;

   Precondition Violations (6)
   Row | Violation
   --- | ---
   1 | Type java.util.List<org.eclipse.emf.edit.provider.IItemPropertyDescriptor> of variable itemPropertyDescriptors does not match with type java.util.Map<org.eclipse.emf.ecore.EClass,org.eclipse.emf.ecore.util.FeatureMapUtil.Validator> of variable validatorMap
   2 | Unmatched statement validatorMap=new Hashtable<EClass,FeatureMapUtil.Validator>(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | Unmatched statement addSerializablePropertyDescriptor(object); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   4 | Unmatched return validatorMap;
   5 | Unmatched return itemPropertyDescriptors;
   6 | The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero