TableStoreWrite.lock reduce method length

[tgd]

Simplify this method and reduce its length to bring its bytecode length under 325 bytes (-XX:FreqInlineSize=325) to give it a better chance of being inlined during JIT compilation.

Before

Before this change the lock method had a bytecode length greater than 325 bytes. A benchmark was setup to run an appender in a tight loop ensuring sufficient time for compilation. The compilation log was captured including inlining information. The only methods that were inlined from within the TableStoreWriteLock class are shown below - note that lock was not inlined:

After

After the refactor of the lock method and its new associated sub-methods the same benchmark was re-run and we can observe lock being appropriately inlined:

The output of jclasslib showing the length of the bytecode is shown below: