1 /* 2 * Copyright (c) 2013, 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 * @test 26 * @bug 8012941 27 * @summary JSR 292: too deep inlining might crash compiler because of stack overflow 28 * 29 * @run main/othervm -Xbatch 30 * -Djava.lang.invoke.MethodHandle.COMPILE_THRESHOLD=0 31 * -XX:CompileThreshold=10 32 * -XX:CompilerThreadStackSize=50 33 * -XX:CompileCommand=compileonly,DeepInliningTest,m2 34 * -XX:CompileCommand=inline,java/lang/invoke*,* 35 * DeepInliningTest 36 */ 37 import java.lang.invoke.MethodHandle; 38 import java.lang.invoke.MethodHandles; 39 import java.lang.invoke.MethodType; 40 41 public class DeepInliningTest { 42 public static final MethodHandle constMH; 43 static { 44 try { 45 MethodHandle localMH = MethodHandles.lookup().findStatic(DeepInliningTest.class, "m1", MethodType.methodType(boolean.class)); 46 47 // Nest MH type conversions to produce long chain of lambda forms 48 final int DEPTH = Integer.getInteger("DEPTH", 200); 49 for (int i = 0; i < DEPTH; i++) { 50 localMH = localMH.asType(MethodType.methodType(Boolean.class)); 51 localMH = localMH.asType(MethodType.methodType(boolean.class)); 52 } 53 54 localMH = localMH.asType(MethodType.methodType(Boolean.class)); 55 constMH = localMH; 56 } catch (Exception e) { 57 throw new Error(e); 58 } 59 } 60 61 static boolean m1() { return true; } 62 63 static boolean m2() throws Throwable { 64 return (Boolean) constMH.invokeExact(); 65 } 66 67 public static void main(String[] args) throws Throwable { 68 for (int i = 0; i < 1000; i++) { 69 try { 70 boolean result = m2(); 71 } catch (StackOverflowError e) { 72 System.out.println(i+": "+e); 73 } 74 } 75 System.out.println("TEST PASSED"); 76 } 77 }