65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2017 SAP SE. 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 8176518
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* @summary Invalid ImplicitNullChecks when heap base not protected
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*
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* @run main/othervm -XX:ObjectAlignmentInBytes=16 -XX:HeapBaseMinAddress=64g
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* -XX:-TieredCompilation -Xbatch
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* compiler.c2.TestNPEHeapBased
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* @requires vm.bits == "64"
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*/
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package compiler.c2;
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public class TestNPEHeapBased {
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TestNPEHeapBased instance = null;
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int i = 0;
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public void set_i(int value) {
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instance.i = value;
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}
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static final int loop_cnt = 200000;
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public static void main(String args[]){
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TestNPEHeapBased xyz = new TestNPEHeapBased();
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xyz.instance = xyz;
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for (int x = 0; x < loop_cnt; x++) xyz.set_i(x);
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xyz.instance = null;
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try {
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xyz.set_i(0);
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} catch (NullPointerException npe) {
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System.out.println("Got expected NullPointerException:");
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npe.printStackTrace();
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return;
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}
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throw new InternalError("NullPointerException is missing!");
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}
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}
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