1 /* 2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 /** 26 * @test 27 * @bug 6857159 28 * @summary local schedule failed with checkcast of Thread.currentThread() 29 * @library /testlibrary 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 */ 33 34 import jdk.test.lib.*; 35 36 public class Test6857159 { 37 public static void main(String[] args) throws Exception { 38 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xbatch", "-XX:+PrintCompilation", 39 "-XX:CompileOnly=Test$ct.run", "Test"); 40 OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); 41 analyzer.shouldNotContain("COMPILE SKIPPED"); 42 analyzer.shouldContain("Test$ct0::run (16 bytes)"); 43 } 44 } 45 46 class Test extends Thread { 47 static class ct0 extends Test { 48 public void message() { } 49 50 public void run() { 51 message(); 52 ct0 ct = (ct0) Thread.currentThread(); 53 ct.message(); 54 } 55 } 56 static class ct1 extends ct0 { 57 public void message() { } 58 } 59 static class ct2 extends ct0 { 60 public void message() { } 61 } 62 63 public static void main(String[] args) throws Exception { 64 for (int i = 0; i < 20000; i++) { 65 Thread t = null; 66 switch (i % 3) { 67 case 0: t = new ct0(); break; 68 case 1: t = new ct1(); break; 69 case 2: t = new ct2(); break; 70 } 71 t.start(); 72 t.join(); 73 } 74 } 75 }