[releng] Fix warnings
diff --git a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/internal/values/CollectionValueImpl.java b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/internal/values/CollectionValueImpl.java
index a25b837..f9feb70 100644
--- a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/internal/values/CollectionValueImpl.java
+++ b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/internal/values/CollectionValueImpl.java
@@ -307,7 +307,7 @@
 
 	@Override
 	@SuppressWarnings("unchecked")			// FIXME check element types
-	public @Nullable <T> List<T> asEcoreObjects(@NonNull IdResolver idResolver, @Nullable Class<T> instanceClass) {
+	public @NonNull <T> List<T> asEcoreObjects(@NonNull IdResolver idResolver, @Nullable Class<T> instanceClass) {
 		return (List<T>) asEcoreObject(idResolver, instanceClass);
 	}
 
diff --git a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibAdapterFactory.java b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibAdapterFactory.java
index ab1ea0b..ad226cf 100644
--- a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibAdapterFactory.java
+++ b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibAdapterFactory.java
@@ -22,7 +22,6 @@
 import org.eclipse.emf.common.notify.impl.AdapterFactoryImpl;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.jdt.annotation.Nullable;
-import org.eclipse.ocl.pivot.oclstdlib.*;
 import org.eclipse.ocl.pivot.oclstdlib.OCLstdlibPackage;
 import org.eclipse.ocl.pivot.values.Bag;
 import org.eclipse.ocl.pivot.values.OrderedSet;
diff --git a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibSwitch.java b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibSwitch.java
index f43d093..38989d0 100644
--- a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibSwitch.java
+++ b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/oclstdlib/util/OCLstdlibSwitch.java
@@ -21,7 +21,6 @@
 import org.eclipse.emf.ecore.EPackage;
 import org.eclipse.emf.ecore.util.Switch;
 import org.eclipse.jdt.annotation.Nullable;
-import org.eclipse.ocl.pivot.oclstdlib.*;
 import org.eclipse.ocl.pivot.oclstdlib.OCLstdlibPackage;
 import org.eclipse.ocl.pivot.values.Bag;
 import org.eclipse.ocl.pivot.values.OrderedSet;
diff --git a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/values/CollectionValue.java b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/values/CollectionValue.java
index 829f928..f56a6e8 100644
--- a/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/values/CollectionValue.java
+++ b/plugins/org.eclipse.ocl.pivot/emf-gen/org/eclipse/ocl/pivot/values/CollectionValue.java
@@ -53,7 +53,7 @@
 	/**
 	 * @generated NOT
 	 */
-	@Nullable <T> List<T> asEcoreObjects(@NonNull IdResolver idResolver, @Nullable Class<T> instanceClass);
+	@NonNull <T> List<T> asEcoreObjects(@NonNull IdResolver idResolver, @Nullable Class<T> instanceClass);
 
 	/**
 	 * @generated NOT
diff --git a/tests/org.eclipse.ocl.examples.xtext.tests/src/org/eclipse/ocl/examples/test/xtext/AbstractConsoleTests.java b/tests/org.eclipse.ocl.examples.xtext.tests/src/org/eclipse/ocl/examples/test/xtext/AbstractConsoleTests.java
index 888f990..7aa31da 100644
--- a/tests/org.eclipse.ocl.examples.xtext.tests/src/org/eclipse/ocl/examples/test/xtext/AbstractConsoleTests.java
+++ b/tests/org.eclipse.ocl.examples.xtext.tests/src/org/eclipse/ocl/examples/test/xtext/AbstractConsoleTests.java
@@ -33,7 +33,6 @@
 import org.eclipse.ocl.pivot.internal.utilities.EnvironmentFactoryInternal;
 import org.eclipse.ocl.pivot.internal.utilities.PivotEnvironmentFactory;
 import org.eclipse.ocl.pivot.model.OCLstdlib;
-import org.eclipse.ocl.pivot.utilities.AbstractEnvironmentFactory;
 import org.eclipse.ocl.pivot.utilities.ThreadLocalExecutor;
 import org.eclipse.ocl.pivot.values.ObjectValue;
 import org.eclipse.ocl.xtext.base.ui.model.BaseDocument;