how to get uptodate source for a package

[ts1000 <ts1000%rad2know.net@localhost>]

How do I get via cvs up command the latest source code for OpenJDK11 
package?
In my pkgsrc I get (by using:  cd /usr/pkgsrc && cvs up -dP )
"openjdk11-1.11.0.8.11"

but in the cvs tree there is a newer version:
"openjdk11-1.11.0.9.11"
http://ftp.netbsd.org/pub/pkgsrc/current/pkgsrc/lang/openjdk11/

Since the current version of openjdk11 does not work (does not run 
gradle),
I would like to try the latest that's in the package source tree.

thank you in advance