Norman Maurer 265c745d9a
EmptyByteBuf.getCharSequence(0,...) must return empty String (#9272)
Motivation:

At the moment EmptyByteBuf.getCharSequence(0,...) will return null while it must return a "".

Modifications:

- Let EmptyByteBuf.getCharSequence(0,...) return ""
- Add unit test

Result:

Fixes https://github.com/netty/netty/issues/9271.
2019-06-24 21:09:19 +02:00
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