Nothing looks very bad.
I mean that I'm not expecting such a None of the configured nodes are available.
That said:
client.admin().indices().prepareCreate("subu").get();
Might be problematic on your cluster because you are running low on disk space:
[2017-07-04T22:39:47,815][WARN ][o.e.c.r.a.DiskThresholdMonitor] [-3-DQ-T] high disk watermark [90%] exceeded on [-3-DQ-TFTgqQiQ5-wWGA9g][-3-DQ-T][C:\Subhasish\elasticsearch-5.4.2\elasticsearch-5.4.2\data\nodes\0] free: 4.5gb[1.9%], shards will be relocated away from this node