Limit which tests can run in parallel

Some tests modify global resources. Those tests cannot be run in parallel with others, as they cause problems or become flaky. Where possible, indicate to JUnit the resources in contention. Otherwise, mark the tests as needing to run in isolation.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1887630 13f79535-47bb-0310-9956-ffa450edef68
4 files changed