--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/annotations/gov/nasa/jpf/annotation/NonShared.java	Mon May 04 22:10:33 2015 -0700
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2015, United States Government, as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All rights reserved.
+ *
+ * The Java Pathfinder core (jpf-core) platform is licensed under the
+ * Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0. 
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and 
+ * limitations under the License.
+ */
+package gov.nasa.jpf.annotation;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * instances of @NonShared classes are not allowed to be referenced from
+ * more than one thread (but do allow hand-over)
+ */
+@Retention(RetentionPolicy.RUNTIME)
+public @interface NonShared {
+
+}