DERBY-6323(Fix incorrect @throws and @exception tags in javadoc)

There were handful of conflicts so I hand backported this jira from trunk(10.11) to 10.10



git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/branches/10.10@1523762 13f79535-47bb-0310-9956-ffa450edef68