DERBY-6413; test failure in XML tests, TriggerTests and BooleanValuesTest with ibm 1.6 sr 15 in 10.7 and earlier
   Run the tests affected without security manager


git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/branches/10.7@1541311 13f79535-47bb-0310-9956-ffa450edef68