| /* |
| * Copyright (c) 2015, 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 8074306 8073432 8074501 |
| * @summary NULLCHK is emitted as Object.getClass |
| * @compile -source 6 -target 6 TestSyntheticNullChecks.java |
| * @run main TestSyntheticNullChecks 6 |
| * @clean TestSyntheticNullChecks* |
| * @compile -source 7 -target 7 TestSyntheticNullChecks.java |
| * @run main TestSyntheticNullChecks 7 |
| * @clean TestSyntheticNullChecks* |
| * @compile TestSyntheticNullChecks.java |
| * @run main TestSyntheticNullChecks 9 |
| */ |
| public class TestSyntheticNullChecks { |
| |
| class Inner { } |
| |
| static void generateSyntheticNPE(TestSyntheticNullChecks outer) { |
| outer.new Inner(); //javac will generate a synthetic NPE check for 'outer' |
| } |
| |
| public static void main(String[] args) { |
| int version = Integer.valueOf(args[0]); |
| boolean useObjects = version >= 7; |
| try { |
| generateSyntheticNPE(null); |
| } catch (NullPointerException npe) { |
| boolean hasRequireNotNull = false; |
| for (StackTraceElement e : npe.getStackTrace()) { |
| if (e.getClassName().equals("java.util.Objects") && |
| e.getMethodName().equals("requireNonNull")) { |
| hasRequireNotNull = true; |
| break; |
| } |
| } |
| if (hasRequireNotNull != useObjects) { |
| throw new AssertionError(); |
| } |
| } |
| } |
| } |