DERBY-5133; nightly test failure in derbyall/storeall/storemore/SpaceTable
   converting the test to junit, with a retry for the selects that have shown instability
   merge of revision 1594231 from trunk


git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/branches/10.10@1594293 13f79535-47bb-0310-9956-ffa450edef68