RFR : 8197412 Enable docker container related tests for linux s390x

[Baesken, Matthias]

Hello, please review :

8197412 Enable docker container related tests for linux s390x


This enables the docker related tests on Linux s390x.   I tested on SLES12  , docker   version 17.09.1 .
Some comments :

TestCPUSets.java :
is for now disabled on s390x   because   Cpus_allowed_list   from   /proc/self/status  can give  misleading values (larger than the currently available CPU number).

DockerTestUtils.java :
 I changed  the order to docker build  to what is really documented .
Docker help build says :
Usage:  docker build [OPTIONS] PATH | URL | -
On older docker versions the order is important ( but on docker 17.x is seems to be ok to give the path first, still prefer to change it to what the help says ).



Webrev :

http://cr.openjdk.java.net/~mbaesken/webrevs/8197412.0/


bug :

https://bugs.openjdk.java.net/browse/JDK-8197412



Thanks, Matthias