@SuppressFBWarnings("SUA_SUSPICIOUS_UNINITIALIZED_ARRAY")
public static String decode(
final CharsetDecoder cd, final byte[] ba, final int off, final int len) {
if (len == 0) {
return "";
}
int en = (int) (len * (double) cd.maxCharsPerByte());
char[] ca = Arrays.getCharsTmp(en);
if (cd instanceof ArrayDecoder) {
int clen = ((ArrayDecoder) cd).decode(ba, off, len, ca);
return new String(ca, 0, clen);
}
cd.reset();
ByteBuffer bb = ByteBuffer.wrap(ba, off, len);
CharBuffer cb = CharBuffer.wrap(ca);
try {
CoderResult cr = cd.decode(bb, cb, true);
if (!cr.isUnderflow()) {
cr.throwException();
}
cr = cd.flush(cb);
if (!cr.isUnderflow()) {
cr.throwException();
}
} catch (CharacterCodingException x) {
throw new Error(x);
}
return new String(ca, 0, cb.position());
}
