1. ByteBufhistorical

    Data structure, API, class hierarchy, and classification

  2. ByteBufAllocatorhistorical

    ByteBufAllocator class hierarchy, AbstractByteBufAllocator, unpooled allocation, and pooled allocation

  3. Usagehistorical

    Historical example of allocating, reading, writing, and releasing a pooled direct ByteBuf

  4. PooledByteBufAllocatorhistorical

    newDirectBuffer, PoolThreadLocalCache, PoolThreadCache, and PoolArena

  5. PoolThreadCachehistorical

    Constructor and the tiny, small, and normal MemoryRegionCache groups