1716-1-2

if (commandParameter.getCollection() == null || commandParameter.getCollection().isEmpty()) { return UnexecutableCommand.INSTANCE; } final EObject eObject = commandParameter.getEOwner(); final List<Object> list = new ArrayList<Object>(commandParameter.getCollection());
if (commandParameter.getCollection() == null || commandParameter.getCollection().isEmpty()) { return UnexecutableCommand.INSTANCE; } final EObject eObject = commandParameter.getEOwner(); final List<Object> list = new ArrayList<Object>(commandParameter.getCollection());

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/edit/provider/ItemProviderAdapter.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/edit/provider/ItemProviderAdapter.java
Method name: `Command factorAddCommand(EditingDomain, CommandParameter)` |  | Method name: `Command factorRemoveCommand(EditingDomain, CommandParameter)`
Number of AST nodes: 4 |  | Number of AST nodes: 4

1

    if (commandParameter.getCollection() == null || commandParameter.getCollection().isEmpty())↵

1

    if (commandParameter.getCollection() == null || commandParameter.getCollection().isEmpty())↵

2

        {↵

2

        {↵

3

          return UnexecutableCommand.INSTANCE;↵

3

          return UnexecutableCommand.INSTANCE;↵

4

        }↵

4

        }↵

5

        final EObject eObject = commandParameter.getEOwner();↵

5

        final EObject eObject = commandParameter.getEOwner();↵

6

        final List<Object> list = new ArrayList<Object>(commandParameter.getCollection());

6

        final List<Object> list = new ArrayList<Object>(commandParameter.getCollection());

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) | 0.3
Clones location | Clones are declared in the same class
Number of node comparisons | 11

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 4
   Number of unmapped statements in the first code fragment | 0
   Number of unmapped statements in the second code fragment | 0
   Time elapsed for statement mapping (ms) | 1.7
   Clone type | Type 1

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

   1

       if (commandParameter.getCollection() == null || commandParameter.getCollection().isEmpty())

   1

       if (commandParameter.getCollection() == null || commandParameter.getCollection().isEmpty())

   2

       return UnexecutableCommand.INSTANCE;

   2

       return UnexecutableCommand.INSTANCE;

   3

       final EObject eObject = commandParameter.getEOwner();

   3

       final EObject eObject = commandParameter.getEOwner();

   4

       final List<Object> list = new ArrayList<Object>(commandParameter.getCollection());

   4

       final List<Object> list = new ArrayList<Object>(commandParameter.getCollection());

   Precondition Violations (1)
   Row | Violation
   --- | ---
   1 | Clone fragment #1 returns variables list, eObject , while Clone fragment #2 returns variables eObject, list