org.apache.flink.runtime.io.network.api.writer.RecordWriter
org.apache.flink.runtime.io.network.api.writer.RecordWriter.OutputFlusher
org.apache.flink.runtime.io.network.partition.ResultPartition
org.apache.flink.runtime.io.network.partition.ResultSubpartition
org.apache.flink.runtime.io.network.api.serialization.RecordSerializer
org.apache.flink.runtime.io.network.buffer.BufferBuilder
org.apache.flink.runtime.io.network.buffer.BufferConsumer
org.apache.flink.runtime.io.network.buffer.BufferPool
org.apache.flink.runtime.io.network.partition.consumer.InputChannel