2021-05-16 14:42:08.205 ERROR 12532 --- [ntLoopGroup-3-1] c.s.n.s.handler.SimpleChatServerHandler : io.netty.buffer.PooledUnsafeDirectByteBuf cannot be cast to java.lang.String

[shrikantcloud]

Occurs at this line : https://github.com/zbum/netty-spring-example/blob/master/src/main/java/com/zbum/example/socket/server/netty/handler/SimpleChatServerHandler.java#L61

Any pointers?