BufferAllocators.Buffers.BufferAllocator whose Buffers are typically backed by Netty buffers.buffer to ByteBuf, creating a new ByteBuf instance if required.ByteBufAllocator taking the BufferAllocator into account.Buffer for the given ByteBuf.BufferAllocator whose Buffers are typically backed by Netty buffers and prefers direct
memory allocation when otherwise not specified.BufferAllocator whose Buffers are typically backed by Netty buffers and prefers heap
memory allocation when otherwise not specified.ByteBuf for the given buffer.buffer to ByteBuf, or returns null if not possible.