removing imports
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/AbstractResourceModel.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/AbstractResourceModel.java
index 4fdd44c..0b62113 100644
--- a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/AbstractResourceModel.java
+++ b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/AbstractResourceModel.java
@@ -13,7 +13,6 @@
 import java.util.List;
 import java.util.ListIterator;
 
-import org.eclipse.jpt.core.internal.context.base.IJpaContextNode;
 import org.eclipse.jpt.utility.internal.iterators.CloneListIterator;
 import org.eclipse.jpt.utility.internal.model.AbstractModel;
 
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/orm/OrmResource.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/orm/OrmResource.java
index 8c1b882..1c8c314 100644
--- a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/orm/OrmResource.java
+++ b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/orm/OrmResource.java
@@ -15,7 +15,6 @@
 import org.eclipse.jpt.core.internal.resource.orm.translators.EntityMappingsTranslator;
 import org.eclipse.wst.common.internal.emf.resource.Renderer;
 import org.eclipse.wst.common.internal.emf.resource.Translator;
-import org.eclipse.wst.common.internal.emf.resource.TranslatorResource;
 
 public class OrmResource extends JpaXmlResource 
 {
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/persistence/PersistenceResource.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/persistence/PersistenceResource.java
index 63dd578..a44faa9 100644
--- a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/persistence/PersistenceResource.java
+++ b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/persistence/PersistenceResource.java
@@ -15,7 +15,6 @@
 import org.eclipse.jpt.core.internal.resource.persistence.translators.PersistenceTranslator;
 import org.eclipse.wst.common.internal.emf.resource.Renderer;
 import org.eclipse.wst.common.internal.emf.resource.Translator;
-import org.eclipse.wst.common.internal.emf.resource.TranslatorResource;
 
 public class PersistenceResource extends JpaXmlResource
 {
@@ -31,6 +30,7 @@
 		return PersistenceTranslator.INSTANCE;
 	}
 	
+	@Override
 	public void javaElementChanged(ElementChangedEvent event) {
 		// TODO Auto-generated method stub	
 	}