how do i get maven-gpg-plugin to sign with primary key rather than sub key

how do i get maven-gpg-plugin to sign with sub key rather than primary key? Details: I am using the maven-gpg-plugin to sign some files prior to uploading to oss.sonatype.org maven repo. This repo seems to expect the files to be signed with the primary key but the maven plugin is signing with t

Maven 2.0.6 using JDK 1.3

I'm having a problem compiling my project with maven 2.0.6. Maven is using JDK 1.3 to compile the java files that contain generics. The build fails with an error stating that 1.3 does not support generics. How do I switch JDKs so that maven will use 1.5 instead of 1.3? My classpath and path