DERBY-6248; nightly regression test failure: testDerby966(org.apache.derbyTesting.functionTests.tests.jdbcapi.XATest)java.sql.SQLFeatureNotSupportedException: The DDM object 0x2408 is not supported. The connection has been terminated.
  working around the issue by adding a rollback.


git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/trunk@1578192 13f79535-47bb-0310-9956-ffa450edef68
DERBY-6511: Convert primitives to wrapper types as appropriate when chaining functions; tests passed cleanly on derby-6511-01-aa-fixPrimitiveToWrapper.diff.

git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/trunk@1578479 13f79535-47bb-0310-9956-ffa450edef68