[303502] Problem with CDOStore's contains() method for custom EDataType objects

https://bugs.eclipse.org/bugs/show_bug.cgi?id=303502

17 files changed, 676 insertions, 2 deletions

diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/model/model3.ecore b/plugins/org.eclipse.emf.cdo.tests.model3/model/model3.ecore
index 1e9f7d2eed..b03a413c2a 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/model/model3.ecore
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/model/model3.ecore
@@ -15,6 +15,10 @@
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="points" lowerBound="1"
         upperBound="-1" eType="#//Point"/>
   </eClassifiers>
+  <eClassifiers xsi:type="ecore:EClass" name="PolygonWithDuplicates">
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="points" unique="false"
+        lowerBound="1" upperBound="-1" eType="#//Point"/>
+  </eClassifiers>
   <eSubpackages name="subpackage" nsURI="http://www.eclipse.org/emf/CDO/tests/subpackage/1.0.0"
       nsPrefix="subpackage">
     <eClassifiers xsi:type="ecore:EClass" name="Class2">
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Factory.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Factory.java
index e7477b4f9f..3b3b49c693 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Factory.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Factory.java
@@ -13,6 +13,7 @@ package org.eclipse.emf.cdo.tests.legacy.model3;
 import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 /**
  * <!-- begin-user-doc --> The <b>Factory</b> for the model. It provides a create method for each non-abstract class of
@@ -55,6 +56,14 @@ public interface Model3Factory extends org.eclipse.emf.cdo.tests.model3.Model3Fa
   Polygon createPolygon();
 
   /**
+   * Returns a new object of class '<em>Polygon With Duplicates</em>'. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @return a new object of class '<em>Polygon With Duplicates</em>'.
+   * @generated
+   */
+  PolygonWithDuplicates createPolygonWithDuplicates();
+
+  /**
    * Returns the package supported by this factory. <!-- begin-user-doc --> <!-- end-user-doc -->
    * 
    * @return the package supported by this factory.
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Package.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Package.java
index 4b33231c96..e9271fa2ac 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Package.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/Model3Package.java
@@ -138,13 +138,40 @@ public interface Model3Package extends org.eclipse.emf.cdo.tests.model3.Model3Pa
   int POLYGON_FEATURE_COUNT = 1;
 
   /**
+   * The meta object id for the '{@link org.eclipse.emf.cdo.tests.legacy.model3.impl.PolygonWithDuplicatesImpl
+   * <em>Polygon With Duplicates</em>}' class. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @see org.eclipse.emf.cdo.tests.legacy.model3.impl.PolygonWithDuplicatesImpl
+   * @see org.eclipse.emf.cdo.tests.legacy.model3.impl.Model3PackageImpl#getPolygonWithDuplicates()
+   * @generated
+   */
+  int POLYGON_WITH_DUPLICATES = 3;
+
+  /**
+   * The feature id for the '<em><b>Points</b></em>' attribute list. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   * @ordered
+   */
+  int POLYGON_WITH_DUPLICATES__POINTS = 0;
+
+  /**
+   * The number of structural features of the '<em>Polygon With Duplicates</em>' class. <!-- begin-user-doc --> <!--
+   * end-user-doc -->
+   * 
+   * @generated
+   * @ordered
+   */
+  int POLYGON_WITH_DUPLICATES_FEATURE_COUNT = 1;
+
+  /**
    * The meta object id for the '<em>Point</em>' data type. <!-- begin-user-doc --> <!-- end-user-doc -->
    * 
    * @see org.eclipse.emf.cdo.tests.model3.Point
    * @see org.eclipse.emf.cdo.tests.legacy.model3.impl.Model3PackageImpl#getPoint()
    * @generated
    */
-  int POINT = 3;
+  int POINT = 4;
 
   /**
    * Returns the meta object for class '{@link org.eclipse.emf.cdo.tests.legacy.model3.Class1 <em>Class1</em>}'. <!--
@@ -210,6 +237,28 @@ public interface Model3Package extends org.eclipse.emf.cdo.tests.model3.Model3Pa
   EAttribute getPolygon_Points();
 
   /**
+   * Returns the meta object for class '{@link org.eclipse.emf.cdo.tests.legacy.model3.PolygonWithDuplicates
+   * <em>Polygon With Duplicates</em>}'. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @return the meta object for class '<em>Polygon With Duplicates</em>'.
+   * @see org.eclipse.emf.cdo.tests.legacy.model3.PolygonWithDuplicates
+   * @generated
+   */
+  EClass getPolygonWithDuplicates();
+
+  /**
+   * Returns the meta object for the attribute list '
+   * {@link org.eclipse.emf.cdo.tests.legacy.model3.PolygonWithDuplicates#getPoints <em>Points</em>}'. <!--
+   * begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @return the meta object for the attribute list '<em>Points</em>'.
+   * @see org.eclipse.emf.cdo.tests.legacy.model3.PolygonWithDuplicates#getPoints()
+   * @see #getPolygonWithDuplicates()
+   * @generated
+   */
+  EAttribute getPolygonWithDuplicates_Points();
+
+  /**
    * Returns the meta object for data type '{@link org.eclipse.emf.cdo.tests.model3.Point <em>Point</em>}'. <!--
    * begin-user-doc --> <!-- end-user-doc -->
    * 
@@ -297,6 +346,24 @@ public interface Model3Package extends org.eclipse.emf.cdo.tests.model3.Model3Pa
     EAttribute POLYGON__POINTS = eINSTANCE.getPolygon_Points();
 
     /**
+     * The meta object literal for the '{@link org.eclipse.emf.cdo.tests.legacy.model3.impl.PolygonWithDuplicatesImpl
+     * <em>Polygon With Duplicates</em>}' class. <!-- begin-user-doc --> <!-- end-user-doc -->
+     * 
+     * @see org.eclipse.emf.cdo.tests.legacy.model3.impl.PolygonWithDuplicatesImpl
+     * @see org.eclipse.emf.cdo.tests.legacy.model3.impl.Model3PackageImpl#getPolygonWithDuplicates()
+     * @generated
+     */
+    EClass POLYGON_WITH_DUPLICATES = eINSTANCE.getPolygonWithDuplicates();
+
+    /**
+     * The meta object literal for the '<em><b>Points</b></em>' attribute list feature. <!-- begin-user-doc --> <!--
+     * end-user-doc -->
+     * 
+     * @generated
+     */
+    EAttribute POLYGON_WITH_DUPLICATES__POINTS = eINSTANCE.getPolygonWithDuplicates_Points();
+
+    /**
      * The meta object literal for the '<em>Point</em>' data type. <!-- begin-user-doc --> <!-- end-user-doc -->
      * 
      * @see org.eclipse.emf.cdo.tests.model3.Point
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3FactoryImpl.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3FactoryImpl.java
index f3f9bc8d8d..cc42652361 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3FactoryImpl.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3FactoryImpl.java
@@ -16,6 +16,7 @@ import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Point;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EDataType;
@@ -80,6 +81,8 @@ public class Model3FactoryImpl extends EFactoryImpl implements Model3Factory
       return createMetaRef();
     case Model3Package.POLYGON:
       return createPolygon();
+    case Model3Package.POLYGON_WITH_DUPLICATES:
+      return createPolygonWithDuplicates();
     default:
       throw new IllegalArgumentException("The class '" + eClass.getName() + "' is not a valid classifier");
     }
@@ -157,6 +160,17 @@ public class Model3FactoryImpl extends EFactoryImpl implements Model3Factory
    * 
    * @generated
    */
+  public PolygonWithDuplicates createPolygonWithDuplicates()
+  {
+    PolygonWithDuplicatesImpl polygonWithDuplicates = new PolygonWithDuplicatesImpl();
+    return polygonWithDuplicates;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
   public Point createPointFromString(EDataType eDataType, String initialValue)
   {
     return (Point)super.createFromString(eDataType, initialValue);
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3PackageImpl.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3PackageImpl.java
index 2dfff7e7f9..e448bbc6e6 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3PackageImpl.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/Model3PackageImpl.java
@@ -18,6 +18,7 @@ import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Point;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.ecore.EAttribute;
 import org.eclipse.emf.ecore.EClass;
@@ -60,6 +61,13 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
    * 
    * @generated
    */
+  private EClass polygonWithDuplicatesEClass = null;
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
   private EDataType pointEDataType = null;
 
   /**
@@ -202,6 +210,26 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
    * 
    * @generated
    */
+  public EClass getPolygonWithDuplicates()
+  {
+    return polygonWithDuplicatesEClass;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  public EAttribute getPolygonWithDuplicates_Points()
+  {
+    return (EAttribute)polygonWithDuplicatesEClass.getEStructuralFeatures().get(0);
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
   public EDataType getPoint()
   {
     return pointEDataType;
@@ -248,6 +276,9 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
     polygonEClass = createEClass(POLYGON);
     createEAttribute(polygonEClass, POLYGON__POINTS);
 
+    polygonWithDuplicatesEClass = createEClass(POLYGON_WITH_DUPLICATES);
+    createEAttribute(polygonWithDuplicatesEClass, POLYGON_WITH_DUPLICATES__POINTS);
+
     // Create data types
     pointEDataType = createEDataType(POINT);
   }
@@ -307,6 +338,11 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
     initEAttribute(getPolygon_Points(), getPoint(), "points", null, 1, -1, Polygon.class, !IS_TRANSIENT, !IS_VOLATILE,
         IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
 
+    initEClass(polygonWithDuplicatesEClass, PolygonWithDuplicates.class, "PolygonWithDuplicates", !IS_ABSTRACT,
+        !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS);
+    initEAttribute(getPolygonWithDuplicates_Points(), getPoint(), "points", null, 1, -1, PolygonWithDuplicates.class,
+        !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
+
     // Initialize data types
     initEDataType(pointEDataType, Point.class, "Point", IS_SERIALIZABLE, !IS_GENERATED_INSTANCE_CLASS);
 
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/PolygonWithDuplicatesImpl.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/PolygonWithDuplicatesImpl.java
new file mode 100644
index 0000000000..38dfd4acb9
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/impl/PolygonWithDuplicatesImpl.java
@@ -0,0 +1,171 @@
+/**
+ * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.tests.legacy.model3.impl;
+
+import org.eclipse.emf.cdo.tests.legacy.model3.Model3Package;
+import org.eclipse.emf.cdo.tests.model3.Point;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
+
+import org.eclipse.emf.common.util.EList;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.impl.EObjectImpl;
+import org.eclipse.emf.ecore.util.EDataTypeEList;
+
+import java.util.Collection;
+
+/**
+ * <!-- begin-user-doc --> An implementation of the model object '<em><b>Polygon With Duplicates</b></em>'. <!--
+ * end-user-doc -->
+ * <p>
+ * The following features are implemented:
+ * <ul>
+ * <li>{@link org.eclipse.emf.cdo.tests.legacy.model3.impl.PolygonWithDuplicatesImpl#getPoints <em>Points</em>}</li>
+ * </ul>
+ * </p>
+ * 
+ * @generated
+ */
+public class PolygonWithDuplicatesImpl extends EObjectImpl implements PolygonWithDuplicates
+{
+  /**
+   * The cached value of the '{@link #getPoints() <em>Points</em>}' attribute list. <!-- begin-user-doc --> <!--
+   * end-user-doc -->
+   * 
+   * @see #getPoints()
+   * @generated
+   * @ordered
+   */
+  protected EList<Point> points;
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  protected PolygonWithDuplicatesImpl()
+  {
+    super();
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  protected EClass eStaticClass()
+  {
+    return Model3Package.Literals.POLYGON_WITH_DUPLICATES;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  public EList<Point> getPoints()
+  {
+    if (points == null)
+    {
+      points = new EDataTypeEList<Point>(Point.class, this, Model3Package.POLYGON_WITH_DUPLICATES__POINTS);
+    }
+    return points;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  public Object eGet(int featureID, boolean resolve, boolean coreType)
+  {
+    switch (featureID)
+    {
+    case Model3Package.POLYGON_WITH_DUPLICATES__POINTS:
+      return getPoints();
+    }
+    return super.eGet(featureID, resolve, coreType);
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @SuppressWarnings("unchecked")
+  @Override
+  public void eSet(int featureID, Object newValue)
+  {
+    switch (featureID)
+    {
+    case Model3Package.POLYGON_WITH_DUPLICATES__POINTS:
+      getPoints().clear();
+      getPoints().addAll((Collection<? extends Point>)newValue);
+      return;
+    }
+    super.eSet(featureID, newValue);
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  public void eUnset(int featureID)
+  {
+    switch (featureID)
+    {
+    case Model3Package.POLYGON_WITH_DUPLICATES__POINTS:
+      getPoints().clear();
+      return;
+    }
+    super.eUnset(featureID);
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  public boolean eIsSet(int featureID)
+  {
+    switch (featureID)
+    {
+    case Model3Package.POLYGON_WITH_DUPLICATES__POINTS:
+      return points != null && !points.isEmpty();
+    }
+    return super.eIsSet(featureID);
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  public String toString()
+  {
+    if (eIsProxy())
+    {
+      return super.toString();
+    }
+
+    StringBuffer result = new StringBuffer(super.toString());
+    result.append(" (points: ");
+    result.append(points);
+    result.append(')');
+    return result.toString();
+  }
+
+} // PolygonWithDuplicatesImpl
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3AdapterFactory.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3AdapterFactory.java
index ce22ea4669..f70c777127 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3AdapterFactory.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3AdapterFactory.java
@@ -14,6 +14,7 @@ import org.eclipse.emf.cdo.tests.legacy.model3.Model3Package;
 import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.common.notify.Adapter;
 import org.eclipse.emf.common.notify.Notifier;
@@ -97,6 +98,12 @@ public class Model3AdapterFactory extends AdapterFactoryImpl
     }
 
     @Override
+    public Adapter casePolygonWithDuplicates(PolygonWithDuplicates object)
+    {
+      return createPolygonWithDuplicatesAdapter();
+    }
+
+    @Override
     public Adapter defaultCase(EObject object)
     {
       return createEObjectAdapter();
@@ -160,6 +167,21 @@ public class Model3AdapterFactory extends AdapterFactoryImpl
   }
 
   /**
+   * Creates a new adapter for an object of class '{@link org.eclipse.emf.cdo.tests.legacy.model3.PolygonWithDuplicates
+   * <em>Polygon With Duplicates</em>}'. <!-- begin-user-doc --> This default implementation returns null so that we can
+   * easily ignore cases; it's useful to ignore a case when inheritance will catch all the cases anyway. <!--
+   * end-user-doc -->
+   * 
+   * @return the new adapter.
+   * @see org.eclipse.emf.cdo.tests.legacy.model3.PolygonWithDuplicates
+   * @generated
+   */
+  public Adapter createPolygonWithDuplicatesAdapter()
+  {
+    return null;
+  }
+
+  /**
    * Creates a new adapter for the default case. <!-- begin-user-doc --> This default implementation returns null. <!--
    * end-user-doc -->
    * 
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3Switch.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3Switch.java
index 0541736405..1fbb32c0af 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3Switch.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/legacy/model3/util/Model3Switch.java
@@ -14,6 +14,7 @@ import org.eclipse.emf.cdo.tests.legacy.model3.Model3Package;
 import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
@@ -124,6 +125,16 @@ public class Model3Switch<T>
       }
       return result;
     }
+    case Model3Package.POLYGON_WITH_DUPLICATES:
+    {
+      PolygonWithDuplicates polygonWithDuplicates = (PolygonWithDuplicates)theEObject;
+      T result = casePolygonWithDuplicates(polygonWithDuplicates);
+      if (result == null)
+      {
+        result = defaultCase(theEObject);
+      }
+      return result;
+    }
     default:
       return defaultCase(theEObject);
     }
@@ -175,6 +186,22 @@ public class Model3Switch<T>
   }
 
   /**
+   * Returns the result of interpreting the object as an instance of '<em>Polygon With Duplicates</em>'. <!--
+   * begin-user-doc --> This implementation returns null; returning a non-null result will terminate the switch. <!--
+   * end-user-doc -->
+   * 
+   * @param object
+   *          the target of the switch.
+   * @return the result of interpreting the object as an instance of '<em>Polygon With Duplicates</em>'.
+   * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
+   * @generated
+   */
+  public T casePolygonWithDuplicates(PolygonWithDuplicates object)
+  {
+    return null;
+  }
+
+  /**
    * Returns the result of interpreting the object as an instance of '<em>EObject</em>'. <!-- begin-user-doc --> This
    * implementation returns null; returning a non-null result will terminate the switch, but this is the last case
    * anyway. <!-- end-user-doc -->
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Factory.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Factory.java
index 2af3469c75..b81a2b36fd 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Factory.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Factory.java
@@ -53,6 +53,14 @@ public interface Model3Factory extends EFactory
   Polygon createPolygon();
 
   /**
+   * Returns a new object of class '<em>Polygon With Duplicates</em>'. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @return a new object of class '<em>Polygon With Duplicates</em>'.
+   * @generated
+   */
+  PolygonWithDuplicates createPolygonWithDuplicates();
+
+  /**
    * Returns the package supported by this factory. <!-- begin-user-doc --> <!-- end-user-doc -->
    * 
    * @return the package supported by this factory.
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Package.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Package.java
index 923caec79f..a376280996 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Package.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Model3Package.java
@@ -139,13 +139,40 @@ public interface Model3Package extends EPackage
   int POLYGON_FEATURE_COUNT = 1;
 
   /**
+   * The meta object id for the '{@link org.eclipse.emf.cdo.tests.model3.impl.PolygonWithDuplicatesImpl
+   * <em>Polygon With Duplicates</em>}' class. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @see org.eclipse.emf.cdo.tests.model3.impl.PolygonWithDuplicatesImpl
+   * @see org.eclipse.emf.cdo.tests.model3.impl.Model3PackageImpl#getPolygonWithDuplicates()
+   * @generated
+   */
+  int POLYGON_WITH_DUPLICATES = 3;
+
+  /**
+   * The feature id for the '<em><b>Points</b></em>' attribute list. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   * @ordered
+   */
+  int POLYGON_WITH_DUPLICATES__POINTS = 0;
+
+  /**
+   * The number of structural features of the '<em>Polygon With Duplicates</em>' class. <!-- begin-user-doc --> <!--
+   * end-user-doc -->
+   * 
+   * @generated
+   * @ordered
+   */
+  int POLYGON_WITH_DUPLICATES_FEATURE_COUNT = 1;
+
+  /**
    * The meta object id for the '<em>Point</em>' data type. <!-- begin-user-doc --> <!-- end-user-doc -->
    * 
    * @see org.eclipse.emf.cdo.tests.model3.Point
    * @see org.eclipse.emf.cdo.tests.model3.impl.Model3PackageImpl#getPoint()
    * @generated
    */
-  int POINT = 3;
+  int POINT = 4;
 
   /**
    * Returns the meta object for class '{@link org.eclipse.emf.cdo.tests.model3.Class1 <em>Class1</em>}'. <!--
@@ -211,6 +238,28 @@ public interface Model3Package extends EPackage
   EAttribute getPolygon_Points();
 
   /**
+   * Returns the meta object for class '{@link org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates
+   * <em>Polygon With Duplicates</em>}'. <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @return the meta object for class '<em>Polygon With Duplicates</em>'.
+   * @see org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates
+   * @generated
+   */
+  EClass getPolygonWithDuplicates();
+
+  /**
+   * Returns the meta object for the attribute list '
+   * {@link org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates#getPoints <em>Points</em>}'. <!-- begin-user-doc -->
+   * <!-- end-user-doc -->
+   * 
+   * @return the meta object for the attribute list '<em>Points</em>'.
+   * @see org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates#getPoints()
+   * @see #getPolygonWithDuplicates()
+   * @generated
+   */
+  EAttribute getPolygonWithDuplicates_Points();
+
+  /**
    * Returns the meta object for data type '{@link org.eclipse.emf.cdo.tests.model3.Point <em>Point</em>}'. <!--
    * begin-user-doc --> <!-- end-user-doc -->
    * 
@@ -298,6 +347,24 @@ public interface Model3Package extends EPackage
     EAttribute POLYGON__POINTS = eINSTANCE.getPolygon_Points();
 
     /**
+     * The meta object literal for the '{@link org.eclipse.emf.cdo.tests.model3.impl.PolygonWithDuplicatesImpl
+     * <em>Polygon With Duplicates</em>}' class. <!-- begin-user-doc --> <!-- end-user-doc -->
+     * 
+     * @see org.eclipse.emf.cdo.tests.model3.impl.PolygonWithDuplicatesImpl
+     * @see org.eclipse.emf.cdo.tests.model3.impl.Model3PackageImpl#getPolygonWithDuplicates()
+     * @generated
+     */
+    EClass POLYGON_WITH_DUPLICATES = eINSTANCE.getPolygonWithDuplicates();
+
+    /**
+     * The meta object literal for the '<em><b>Points</b></em>' attribute list feature. <!-- begin-user-doc --> <!--
+     * end-user-doc -->
+     * 
+     * @generated
+     */
+    EAttribute POLYGON_WITH_DUPLICATES__POINTS = eINSTANCE.getPolygonWithDuplicates_Points();
+
+    /**
      * The meta object literal for the '<em>Point</em>' data type. <!-- begin-user-doc --> <!-- end-user-doc -->
      * 
      * @see org.eclipse.emf.cdo.tests.model3.Point
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Point.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Point.java
index f48e91317c..7a9a9c459e 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Point.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/Point.java
@@ -36,6 +36,29 @@ public final class Point
   }
 
   @Override
+  public int hashCode()
+  {
+    return x ^ y;
+  }
+
+  @Override
+  public boolean equals(Object obj)
+  {
+    if (obj == this)
+    {
+      return true;
+    }
+
+    if (obj instanceof Point)
+    {
+      Point that = (Point)obj;
+      return x == that.getX() && y == that.getY();
+    }
+
+    return false;
+  }
+
+  @Override
   public String toString()
   {
     return Integer.toString(x) + "," + Integer.toString(y);
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/PolygonWithDuplicates.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/PolygonWithDuplicates.java
new file mode 100644
index 0000000000..e21ed0b263
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/PolygonWithDuplicates.java
@@ -0,0 +1,48 @@
+/**
+ * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.tests.model3;
+
+import org.eclipse.emf.common.util.EList;
+import org.eclipse.emf.ecore.EObject;
+
+/**
+ * <!-- begin-user-doc --> A representation of the model object '<em><b>Polygon With Duplicates</b></em>'. <!--
+ * end-user-doc -->
+ * <p>
+ * The following features are supported:
+ * <ul>
+ * <li>{@link org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates#getPoints <em>Points</em>}</li>
+ * </ul>
+ * </p>
+ * 
+ * @see org.eclipse.emf.cdo.tests.model3.Model3Package#getPolygonWithDuplicates()
+ * @model
+ * @generated
+ */
+public interface PolygonWithDuplicates extends EObject
+{
+  /**
+   * Returns the value of the '<em><b>Points</b></em>' attribute list. The list contents are of type
+   * {@link org.eclipse.emf.cdo.tests.model3.Point}. <!-- begin-user-doc -->
+   * <p>
+   * If the meaning of the '<em>Points</em>' attribute list isn't clear, there really should be more of a description
+   * here...
+   * </p>
+   * <!-- end-user-doc -->
+   * 
+   * @return the value of the '<em>Points</em>' attribute list.
+   * @see org.eclipse.emf.cdo.tests.model3.Model3Package#getPolygonWithDuplicates_Points()
+   * @model unique="false" dataType="org.eclipse.emf.cdo.tests.model3.Point" required="true"
+   * @generated
+   */
+  EList<Point> getPoints();
+
+} // PolygonWithDuplicates
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3FactoryImpl.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3FactoryImpl.java
index 30ced969cf..fe3f1fc962 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3FactoryImpl.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3FactoryImpl.java
@@ -16,6 +16,7 @@ import org.eclipse.emf.cdo.tests.model3.Model3Factory;
 import org.eclipse.emf.cdo.tests.model3.Model3Package;
 import org.eclipse.emf.cdo.tests.model3.Point;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EDataType;
@@ -80,6 +81,8 @@ public class Model3FactoryImpl extends EFactoryImpl implements Model3Factory
       return createMetaRef();
     case Model3Package.POLYGON:
       return createPolygon();
+    case Model3Package.POLYGON_WITH_DUPLICATES:
+      return createPolygonWithDuplicates();
     default:
       throw new IllegalArgumentException("The class '" + eClass.getName() + "' is not a valid classifier");
     }
@@ -155,6 +158,17 @@ public class Model3FactoryImpl extends EFactoryImpl implements Model3Factory
   /**
    * <!-- begin-user-doc --> <!-- end-user-doc -->
    * 
+   * @generated
+   */
+  public PolygonWithDuplicates createPolygonWithDuplicates()
+  {
+    PolygonWithDuplicatesImpl polygonWithDuplicates = new PolygonWithDuplicatesImpl();
+    return polygonWithDuplicates;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
    * @generated NOT
    */
   public Point createPointFromString(EDataType eDataType, String initialValue)
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3PackageImpl.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3PackageImpl.java
index 8286fb94ed..00cb7cba32 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3PackageImpl.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/Model3PackageImpl.java
@@ -16,6 +16,7 @@ import org.eclipse.emf.cdo.tests.model3.Model3Factory;
 import org.eclipse.emf.cdo.tests.model3.Model3Package;
 import org.eclipse.emf.cdo.tests.model3.Point;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 import org.eclipse.emf.cdo.tests.model3.subpackage.SubpackagePackage;
 import org.eclipse.emf.cdo.tests.model3.subpackage.impl.SubpackagePackageImpl;
 
@@ -60,6 +61,13 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
    * 
    * @generated
    */
+  private EClass polygonWithDuplicatesEClass = null;
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
   private EDataType pointEDataType = null;
 
   /**
@@ -202,6 +210,26 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
    * 
    * @generated
    */
+  public EClass getPolygonWithDuplicates()
+  {
+    return polygonWithDuplicatesEClass;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  public EAttribute getPolygonWithDuplicates_Points()
+  {
+    return (EAttribute)polygonWithDuplicatesEClass.getEStructuralFeatures().get(0);
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
   public EDataType getPoint()
   {
     return pointEDataType;
@@ -248,6 +276,9 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
     polygonEClass = createEClass(POLYGON);
     createEAttribute(polygonEClass, POLYGON__POINTS);
 
+    polygonWithDuplicatesEClass = createEClass(POLYGON_WITH_DUPLICATES);
+    createEAttribute(polygonWithDuplicatesEClass, POLYGON_WITH_DUPLICATES__POINTS);
+
     // Create data types
     pointEDataType = createEDataType(POINT);
   }
@@ -307,6 +338,11 @@ public class Model3PackageImpl extends EPackageImpl implements Model3Package
     initEAttribute(getPolygon_Points(), getPoint(), "points", null, 1, -1, Polygon.class, !IS_TRANSIENT, !IS_VOLATILE,
         IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
 
+    initEClass(polygonWithDuplicatesEClass, PolygonWithDuplicates.class, "PolygonWithDuplicates", !IS_ABSTRACT,
+        !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS);
+    initEAttribute(getPolygonWithDuplicates_Points(), getPoint(), "points", null, 1, -1, PolygonWithDuplicates.class,
+        !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED);
+
     // Initialize data types
     initEDataType(pointEDataType, Point.class, "Point", IS_SERIALIZABLE, !IS_GENERATED_INSTANCE_CLASS);
 
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/PolygonWithDuplicatesImpl.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/PolygonWithDuplicatesImpl.java
new file mode 100644
index 0000000000..12c908b90b
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/impl/PolygonWithDuplicatesImpl.java
@@ -0,0 +1,79 @@
+/**
+ * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.tests.model3.impl;
+
+import org.eclipse.emf.cdo.tests.model3.Model3Package;
+import org.eclipse.emf.cdo.tests.model3.Point;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
+
+import org.eclipse.emf.internal.cdo.CDOObjectImpl;
+
+import org.eclipse.emf.common.util.EList;
+import org.eclipse.emf.ecore.EClass;
+
+/**
+ * <!-- begin-user-doc --> An implementation of the model object '<em><b>Polygon With Duplicates</b></em>'. <!--
+ * end-user-doc -->
+ * <p>
+ * The following features are implemented:
+ * <ul>
+ * <li>{@link org.eclipse.emf.cdo.tests.model3.impl.PolygonWithDuplicatesImpl#getPoints <em>Points</em>}</li>
+ * </ul>
+ * </p>
+ * 
+ * @generated
+ */
+public class PolygonWithDuplicatesImpl extends CDOObjectImpl implements PolygonWithDuplicates
+{
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  protected PolygonWithDuplicatesImpl()
+  {
+    super();
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  protected EClass eStaticClass()
+  {
+    return Model3Package.Literals.POLYGON_WITH_DUPLICATES;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @Override
+  protected int eStaticFeatureCount()
+  {
+    return 0;
+  }
+
+  /**
+   * <!-- begin-user-doc --> <!-- end-user-doc -->
+   * 
+   * @generated
+   */
+  @SuppressWarnings("unchecked")
+  public EList<Point> getPoints()
+  {
+    return (EList<Point>)eGet(Model3Package.Literals.POLYGON_WITH_DUPLICATES__POINTS, true);
+  }
+
+} // PolygonWithDuplicatesImpl
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3AdapterFactory.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3AdapterFactory.java
index ca36d5ccc6..a3f33ac7d7 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3AdapterFactory.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3AdapterFactory.java
@@ -14,6 +14,7 @@ import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Model3Package;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.common.notify.Adapter;
 import org.eclipse.emf.common.notify.Notifier;
@@ -97,6 +98,12 @@ public class Model3AdapterFactory extends AdapterFactoryImpl
     }
 
     @Override
+    public Adapter casePolygonWithDuplicates(PolygonWithDuplicates object)
+    {
+      return createPolygonWithDuplicatesAdapter();
+    }
+
+    @Override
     public Adapter defaultCase(EObject object)
     {
       return createEObjectAdapter();
@@ -160,6 +167,21 @@ public class Model3AdapterFactory extends AdapterFactoryImpl
   }
 
   /**
+   * Creates a new adapter for an object of class '{@link org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates
+   * <em>Polygon With Duplicates</em>}'. <!-- begin-user-doc --> This default implementation returns null so that we can
+   * easily ignore cases; it's useful to ignore a case when inheritance will catch all the cases anyway. <!--
+   * end-user-doc -->
+   * 
+   * @return the new adapter.
+   * @see org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates
+   * @generated
+   */
+  public Adapter createPolygonWithDuplicatesAdapter()
+  {
+    return null;
+  }
+
+  /**
    * Creates a new adapter for the default case. <!-- begin-user-doc --> This default implementation returns null. <!--
    * end-user-doc -->
    * 
diff --git a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3Switch.java b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3Switch.java
index 7ae93cbad6..6a72932501 100644
--- a/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3Switch.java
+++ b/plugins/org.eclipse.emf.cdo.tests.model3/src/org/eclipse/emf/cdo/tests/model3/util/Model3Switch.java
@@ -14,6 +14,7 @@ import org.eclipse.emf.cdo.tests.model3.Class1;
 import org.eclipse.emf.cdo.tests.model3.MetaRef;
 import org.eclipse.emf.cdo.tests.model3.Model3Package;
 import org.eclipse.emf.cdo.tests.model3.Polygon;
+import org.eclipse.emf.cdo.tests.model3.PolygonWithDuplicates;
 
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
@@ -124,6 +125,16 @@ public class Model3Switch<T>
       }
       return result;
     }
+    case Model3Package.POLYGON_WITH_DUPLICATES:
+    {
+      PolygonWithDuplicates polygonWithDuplicates = (PolygonWithDuplicates)theEObject;
+      T result = casePolygonWithDuplicates(polygonWithDuplicates);
+      if (result == null)
+      {
+        result = defaultCase(theEObject);
+      }
+      return result;
+    }
     default:
       return defaultCase(theEObject);
     }
@@ -175,6 +186,22 @@ public class Model3Switch<T>
   }
 
   /**
+   * Returns the result of interpreting the object as an instance of '<em>Polygon With Duplicates</em>'. <!--
+   * begin-user-doc --> This implementation returns null; returning a non-null result will terminate the switch. <!--
+   * end-user-doc -->
+   * 
+   * @param object
+   *          the target of the switch.
+   * @return the result of interpreting the object as an instance of '<em>Polygon With Duplicates</em>'.
+   * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
+   * @generated
+   */
+  public T casePolygonWithDuplicates(PolygonWithDuplicates object)
+  {
+    return null;
+  }
+
+  /**
    * Returns the result of interpreting the object as an instance of '<em>EObject</em>'. <!-- begin-user-doc --> This
    * implementation returns null; returning a non-null result will terminate the switch, but this is the last case
    * anyway. <!-- end-user-doc -->