--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.graph.test/src/org/graalvm/compiler/graph/test/NodeValidationChecksTest.java	2016-12-09 00:48:21.110306481 -0800
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.graalvm.compiler.graph.test;
+
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import org.graalvm.compiler.graph.Graph;
+import org.graalvm.compiler.graph.Node;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+
+public class NodeValidationChecksTest {
+
+    @NodeInfo(cycles = CYCLES_UNKNOWN, size = SIZE_UNKNOWN)
+    static final class TestNode extends Node {
+        public static final NodeClass<TestNode> TYPE = NodeClass.create(TestNode.class);
+
+        @Input TestNode input;
+        @Successor TestNode successor;
+
+        protected TestNode(TestNode input, TestNode successor) {
+            super(TYPE);
+            this.input = input;
+            this.successor = successor;
+        }
+    }
+
+    @Test
+    public void testInputNotAlive() {
+        Graph graph = new Graph();
+        TestNode node = new TestNode(null, null);
+        try {
+            graph.add(new TestNode(node, null));
+            Assert.fail("Exception expected.");
+        } catch (AssertionError e) {
+            Assert.assertTrue(e.getMessage().contains("Input"));
+            Assert.assertTrue(e.getMessage().contains("not alive"));
+        }
+    }
+
+    @Test
+    public void testSuccessorNotAlive() {
+        Graph graph = new Graph();
+        TestNode node = new TestNode(null, null);
+        try {
+            graph.add(new TestNode(null, node));
+            Assert.fail("Exception expected.");
+        } catch (AssertionError e) {
+            Assert.assertTrue(e.getMessage().contains("Successor"));
+            Assert.assertTrue(e.getMessage().contains("not alive"));
+        }
+    }
+}