1 /* 2 * Copyright (c) 2018, 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 8206986 29 * @summary Check switch expressions embedded in switch expressions. 30 * @compile --enable-preview -source 12 ExpressionSwitchInExpressionSwitch.java 31 * @run main/othervm --enable-preview ExpressionSwitchInExpressionSwitch 32 */ 33 34 public class ExpressionSwitchInExpressionSwitch { 35 public static void main(String[] args) { 36 37 int j = 42; 38 int i = switch (j) { 39 default -> (switch (j) { default -> 0; } )+1; 40 }; 41 if (i!=1) { 42 throw new AssertionError("Unexpected result: " + i); 43 } 44 i = switch (j) { 45 default -> { 46 int k = switch (j) { 47 default -> { 48 break 42; 49 } 50 }; 51 System.out.println("didn't break to the top level"); 52 break 43; 53 } 54 }; 55 if (i!=43) { 56 throw new AssertionError("Unexpected result: " + i); 57 } 58 } 59 }