1/* 2 * Copyright (c) 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * @test 28 * @bug 8078093 29 * @summary Exponential performance regression Java 8 compiler compared to Java 7 compiler 30 * @compile InferStrict.java 31 */ 32import java.util.HashSet; 33import java.util.Set; 34 35class InferStrict { 36 public <T> Set<T> compute(Set<T> t) { return t; } 37 public <T> T join(Set<T> t1, Set<T> t2) { return null; } 38 public <T extends InferStrict> T compute() { return null; } 39 public void test() { 40 join( 41 compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(new HashSet<>()))))))))))))))))), 42 compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(new HashSet<String>()))))))))))))))))) 43 ).length(); 44 } 45} 46