| /* |
| * Copyright (c) 2008, 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 |
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| * questions. |
| */ |
| |
| /* @test |
| @bug 4867457 |
| @summary Check for correct byte buffer underflow handling in EUC-JP |
| */ |
| |
| import java.io.*; |
| import java.nio.*; |
| import java.nio.charset.*; |
| |
| public class EUCJPUnderflowDecodeTest { |
| public static void main(String[] args) throws Exception{ |
| |
| ByteBuffer bb = ByteBuffer.allocateDirect(255); |
| CharBuffer cc = CharBuffer.allocate(255); |
| |
| |
| // Test both regular EUC-JP and Linux variant |
| |
| String[] charsetNames = { "EUC_JP", "EUC-JP-LINUX" }; |
| |
| for (int i = 0 ; i < charsetNames.length; i++) { |
| Charset cs = Charset.forName(charsetNames[i]); |
| CharsetDecoder decoder = cs.newDecoder(); |
| bb.clear(); |
| cc.clear(); |
| |
| // Fakes a partial 3 byte EUC_JP (JIS-X-0212 range) |
| // encoded character/byte sequence |
| bb.put((byte)0x8f); |
| bb.put((byte)0xa2); |
| bb.flip(); |
| // Now decode with endOfInput method param set to |
| // indicate to decoder that there is more encoded |
| // data to follow in a subsequent invocation |
| |
| CoderResult result = decoder.decode(bb, cc, false); |
| |
| // java.nio.charset.CharsetDecoder spec specifies |
| // that the coder ought to return CoderResult.UNDERFLOW |
| // when insufficient bytes have been supplied to complete |
| // the decoding operation |
| |
| if (result != CoderResult.UNDERFLOW) { |
| throw new Exception("test failed - UNDERFLOW not returned"); |
| } |
| |
| // Repeat the test with the lead byte (minus its pursuing |
| // trail byte) for the EUC-JP 2 byte (JIS208) range |
| decoder.reset(); |
| bb.clear(); |
| cc.clear(); |
| bb.put((byte)0xa1); |
| bb.flip(); |
| result = decoder.decode(bb, cc, false); |
| if (result != CoderResult.UNDERFLOW) { |
| throw new Exception("test failed"); |
| } |
| |
| // finally ensure that a valid JIS208 range EUC-JP |
| // 2 byte value is correctly decoded when it is presented |
| // at the trailing bounds of a ByteBuffer in the case where |
| // charset decoder expects (endOfInput ==false) more |
| //input to follow |
| |
| decoder.reset(); |
| bb.clear(); |
| cc.clear(); |
| bb.put((byte)0xa1); |
| bb.put((byte)0xc0); |
| bb.flip(); |
| |
| result = decoder.decode(bb, cc, false); |
| |
| cc.flip(); |
| |
| if (result != CoderResult.UNDERFLOW && cc.get() != '\uFF3c') { |
| throw new Exception("test failed to decode EUC-JP (0xA1C0)"); |
| } |
| } |
| } |
| } |