Added a warning to the description of the JobGroup.join method

The warning explains unusual behavior of the method when the job monitor
is suspended. 

Change-Id: Ie52ec9f5095cedbcbf7f30d08359afeb2c59cf08
1 file changed
tree: 36965dc8dc4d1c710a399854d2ca61800e3536a2
  1. bundles/
  2. features/
  3. tests/
  4. .gitignore
  5. CONTRIBUTING.md
  6. pom.xml