create_all.sh encounter some errors.

Version:OTM 6.3.1.
When I executed create_all.sh, it output some errors as below, Any one can help on below errors?

errors : source DbUTCDate
Note: DbUTCDate uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

errors : source DbLocalTimestamp
Note: DbLocalTimestamp uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

errors : source PasswordEncrypter
Note: PasswordEncrypter uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.



errors : source AutoCombine
Note: AutoCombine uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.