/* * Copyright (c) 1997, 1998, 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 4076283 * @summary java.lang.ref.SoftReference should reliably prevent * OutOfMemoryErrors * @author Peter Jones * @author Mark Reinhold
*/
/* If this test fails, an OutOfMemoryError will be thrown */
import java.lang.ref.SoftReference;
publicclass Bash {
staticclass TestReference extends SoftReference {
publicstatic TestReference head; public TestReference next;
public TestReference(Object referent) { super(referent);
next = head;
head = this;
}
}
for (int i = 0; i < NUM_BLOCKS; ++ i) {
TestReference ref = new TestReference(newbyte[BLOCK_SIZE]);
}
int emptyCount = 0; int fullCount = 0; for (TestReference r = TestReference.head; r != null; r = r.next) { if (r.get() == null) emptyCount++; else fullCount++;
}
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