Norman Maurer 8331248671 ChannelInitializer may be invoked multiple times when used with custom EventExecutor. (#8620) ... Motivation: The ChannelInitializer may be invoked multipled times when used with a custom EventExecutor as removal operation may be done asynchronously. We need to guard against this. Modifications: - Change Map to Set which is more correct in terms of how we use it. - Ensure we only modify the internal Set when the handler was removed yet - Add unit test. Result: Fixes https://github.com/netty/netty/issues/8616.		2018-12-05 19:30:17 +01:00
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io/netty	ChannelInitializer may be invoked multiple times when used with custom EventExecutor. (#8620)	2018-12-05 19:30:17 +01:00