MNEMONIC-663: Fix illegal reflective access operation in ChunkBuffer
MNEMONIC-663: Fix illegal reflective access operation in ChunkBuffer

Signed-off-by: Chunyong He <bf9ff5fa0ec46a1a27433cdd46accb9a25e7c5ef@gmail.com>

yzz127/incubator-mnemonic,yzz127/incubator-mnemonic,yzz127/incubator-mnemonic,yzz127/incubator-mnemonic