Re: Logging in Janusgraph 0.6.3
I guess this behviour was introduced in https://github.com/JanusGraph/janusgraph/pull/3217.
Note that there are many vulnerability issues with log4j: https://mvnrepository.com/artifact/log4j/log4j
This it makes it unlikely that your suggestion would make it into a possible 0.6.4.
The current 1.0.0.rc2 uses log4j2 and it is not shipped with slf4j-reload4j, but the janusgraph-server.sh script starts with log4j by default, anyway.
The specific line you found is still present, though, which is weird. So you can provide it as feedback on 1.0.0.rc2, see https://lists.lfaidata.foundation/g/janusgraph-users/topic/announce_janusgraph_1_0_0/97263880
Best wishes, Marc