@Override
public void seek(long pos) throws IOException {
// necessary in case offset != 0 and pos < 0, but pos >= -offset
if (pos < 0L) {
throw new IllegalArgumentException("Seeking to negative position: " + this);
}
super.seek(pos + offset);
}
@Override
public final ByteBufferIndexInput clone() {
final ByteBufferIndexInput clone = buildSlice((String) null, 0L, this.length);
try {
clone.seek(getFilePointer());
} catch (IOException ioe) {
throw new AssertionError(ioe);
}
return clone;
}