--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/compiler/c2/Test6857159.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2009, 2016, 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.
+ */
+
+/**
+ * @test
+ * @bug 6857159
+ * @summary local schedule failed with checkcast of Thread.currentThread()
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ *          java.management
+ *
+ * @run driver compiler.c2.Test6857159
+ */
+
+package compiler.c2;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+public class Test6857159 {
+    public static void main(String[] args) throws Throwable {
+        String className = Test.class.getName();
+        OutputAnalyzer analyzer = ProcessTools.executeTestJvm("-Xbatch",
+                "-XX:+PrintCompilation",
+                "-XX:CompileOnly="+ className + "$ct::run",
+                className);
+        analyzer.shouldNotContain("COMPILE SKIPPED");
+        analyzer.shouldContain(className + "$ct0::run (16 bytes)");
+        analyzer.shouldHaveExitValue(0);
+    }
+
+    static class Test extends Thread {
+        static class ct0 extends Test {
+            public void message() {
+            }
+
+            public void run() {
+                message();
+                ct0 ct = (ct0) Thread.currentThread();
+                ct.message();
+            }
+        }
+
+        static class ct1 extends ct0 {
+            public void message() {
+            }
+        }
+
+        static class ct2 extends ct0 {
+            public void message() {
+            }
+        }
+
+        public static void main(String[] args) throws Exception {
+            for (int i = 0; i < 20000; i++) {
+                Thread t = null;
+                switch (i % 3) {
+                    case 0:
+                        t = new ct0();
+                        break;
+                    case 1:
+                        t = new ct1();
+                        break;
+                    case 2:
+                        t = new ct2();
+                        break;
+                }
+                t.start();
+                t.join();
+            }
+        }
+    }
+}