59 lines
2.1 KiB
Java
59 lines
2.1 KiB
Java
/*
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* Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8074306 8073432 8074501
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* @summary NULLCHK is emitted as Object.getClass
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* @compile TestSyntheticNullChecks.java
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* @run main TestSyntheticNullChecks 9
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*/
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public class TestSyntheticNullChecks {
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class Inner { }
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static void generateSyntheticNPE(TestSyntheticNullChecks outer) {
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outer.new Inner(); //javac will generate a synthetic NPE check for 'outer'
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}
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public static void main(String[] args) {
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int version = Integer.valueOf(args[0]);
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boolean useObjects = version >= 7;
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try {
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generateSyntheticNPE(null);
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} catch (NullPointerException npe) {
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boolean hasRequireNotNull = false;
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for (StackTraceElement e : npe.getStackTrace()) {
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if (e.getClassName().equals("java.util.Objects") &&
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e.getMethodName().equals("requireNonNull")) {
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hasRequireNotNull = true;
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break;
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}
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}
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if (hasRequireNotNull != useObjects) {
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throw new AssertionError();
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}
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}
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}
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}
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