In ASAN builds, before- and after- memory regions are poisoned for checking out-of-bound access. ChunkManager merge adjacent chunks and may commit the larger chunk at once. The poisoned area will be touched in this case and ASAN asserts.
            
- links to
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                     Commit(master)
        openjdk/jdk/6a4c2676 Commit(master)
        openjdk/jdk/6a4c2676
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                     Review(master)
        openjdk/jdk/27248 Review(master)
        openjdk/jdk/27248
 P4
  P4