/* * Copyright (c) 2016, 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 8163518 * @summary Integer overflow when reading in large buffer * @requires (sun.arch.data.model == "64" & os.maxMemory > 8g) * @run main/othervm -Xmx8g OverflowInRead
*/
import java.io.CharArrayReader;
publicclass OverflowInRead { publicstaticvoid main(String[] args) throws Exception { char[] a = "_123456789_123456789_123456789_123456789"
.toCharArray(); // a.length > 33 try (CharArrayReader car = new CharArrayReader(a)) { int len1 = 33; char[] buf1 = newchar[len1]; if (car.read(buf1, 0, len1) != len1) thrownew Exception("Expected to read " + len1 + " chars");
int len2 = Integer.MAX_VALUE - 32; char[] buf2 = newchar[len2]; int expLen2 = a.length - len1; if (car.read(buf2, 0, len2) != expLen2) thrownew Exception("Expected to read " + expLen2 + " chars");
}
}
}
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