portmidi: use fixed java version 11, don't require cmd:java (i.e. openjdk_default) (#7315)
portmidi: use fixed java version 11, don't require cmd:java (i.e. openjdk_default) (#7315)

OpenJDK 11 is an LTS version. This is probably the most appropriate version.
Begasus/haikuports,haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,haikuports/haikuports,Begasus/haikuports,haikuports/haikuports,haikuports/haikuports,Begasus/haikuports,haikuports/haikuports