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Jackson's default recycler pool keeps a BufferRecycler in a ThreadLocal. With a virtual thread per request, every parse started from an empty recycler and allocated fresh buffers. Both ObjectMappers now use a shared concurrent deque pool, which works the same on platform and virtual threads.
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Jackson's default recycler pool keeps a BufferRecycler in a ThreadLocal.
With a virtual thread per request, every parse started from an empty
recycler and allocated fresh buffers. Both ObjectMappers now use a shared
concurrent deque pool, which works the same on platform and virtual
threads.