When decoding using EUC_JP_LINUX from a direct byte buffer
containing a 0212 character with error action set to REPLACE,
the source position is incorrectly advanced, causing subsequent
input bytes to be ignored.

Here's a test fragment:

    private static void equal(CharBuffer b1, CharBuffer b2) {
equal(b1.position(), b2.position());
equal(b1.limit(), b2.limit());
System.out.printf("positions=%d %d%n", b1.position(), b2.position());
System.out.printf("limits=%d %d%n", b1.limit(), b2.limit());
for (int i = b1.position(); i < b1.limit(); i++)
equal((int)b1.get(i), (int)b2.get(i));
    }

    private static void realMain(String[] args) throws Throwable {
List<ByteBuffer> bbs = Arrays.asList(
ByteBuffer.allocate(10),
ByteBuffer.allocateDirect(10));
List<CharBuffer> cbs = new ArrayList<CharBuffer>();

for (ByteBuffer bb : bbs) {
bb.put(new byte[]{ (byte)0x8f, 0x01, 0x02,
(byte)0xa1, (byte)0xc0,
0x02, 0x03});
bb.flip();
CharsetDecoder decoder = Charset.forName("EUC_JP_LINUX").newDecoder();
decoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
CharBuffer cb = decoder.decode(bb);
cbs.add(cb);
}
equal(cbs.get(0), cbs.get(1));
    }