Fixed generics warnings.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/beanutils/branches/java5@1536024 13f79535-47bb-0310-9956-ffa450edef68
Generified JDBCDynaClass.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/beanutils/branches/java5@1536025 13f79535-47bb-0310-9956-ffa450edef68