89 lines
3.5 KiB
Java
89 lines
3.5 KiB
Java
/*
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* Copyright (c) 2023, 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 8309034
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* @summary Test that when saving a class initialization failure caused by
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* an OutOfMemoryError, that we record the OOME as the underlying
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* cause, even if we can't create the ExceptionInInitializerError
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*
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* @comment Enable logging to ease failure diagnosis
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* @run main/othervm -Xms64m -Xmx64m TestOutOfMemoryDuringInit
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*/
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import java.io.ByteArrayOutputStream;
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import java.io.PrintStream;
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import java.util.LinkedList;
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public class TestOutOfMemoryDuringInit {
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static LinkedList<Object> theList = new LinkedList<>();
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static class Nested {
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static void forceInit() { }
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static {
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while (theList != null) {
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// Use the minimal allocation size to push heap occupation to
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// the limit, ensuring there is not enough memory to create the
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// ExceptionInInitializerError that the VM tries to create when
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// the clinit throws the OOM.
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theList.add(new Object());
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}
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}
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}
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public static void main(String[] args) throws Exception {
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String expected = "java.lang.NoClassDefFoundError: Could not initialize class TestOutOfMemoryDuringInit$Nested";
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// This cause will match either the shared OOME or the EIIE we get
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// with some GC's.
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String cause = "java.lang.OutOfMemoryError";
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try {
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Nested.forceInit();
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} catch (OutOfMemoryError oome) {
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theList = null; // free memory for verification process
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System.out.println("Trying to access class Nested ...");
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try {
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Nested.forceInit();
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throw new RuntimeException("NoClassDefFoundError was not thrown");
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} catch (NoClassDefFoundError ncdfe) {
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verify_stack(ncdfe, expected, cause);
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}
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}
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}
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private static void verify_stack(Throwable e, String expected, String cause) throws Exception {
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ByteArrayOutputStream byteOS = new ByteArrayOutputStream();
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try (PrintStream printStream = new PrintStream(byteOS)) {
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e.printStackTrace(printStream);
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}
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String stackTrace = byteOS.toString("ASCII");
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System.out.println(stackTrace);
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if (!stackTrace.contains(expected) ||
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(cause != null && !stackTrace.contains(cause))) {
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throw new RuntimeException(expected + " and/or " + cause + " missing from stacktrace");
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}
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}
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}
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