/* * Copyright (c) 2021, 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 8266078 * @summary Tests that attempting to read into a read-only CharBuffer * does not advance the Reader position * @run main ReadIntoReadOnlyBuffer
*/ publicclass ReadIntoReadOnlyBuffer { privatestaticfinal String THE_STRING = "123"; publicstaticvoid main(String[] args) throws Exception {
CharBuffer buf = CharBuffer.allocate(8).asReadOnlyBuffer();
StringReader r = new StringReader(THE_STRING);
read(r, buf);
buf = ByteBuffer.allocateDirect(16).asCharBuffer().asReadOnlyBuffer();
r = new StringReader(THE_STRING);
read(r, buf);
}
char[] c = newchar[3]; int n = r.read(c); if (n != c.length) { thrownew RuntimeException("Expected " + c.length + ", got " + n);
}
String s = new String(c); if (!s.equals(THE_STRING)) { thrownew RuntimeException("Expected " + THE_STRING + ", got " + s);
}
}
}
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Bemerkung:
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