The default-jre-headless was a red herring (y testing apparently failed). However, why this works:
/usr/lib/jvm/java-6-openjdk/jre/bin/java cx -> browser_openjdk,
/usr/lib/jvm/java-6-openjdk-{amd64,armel,armhf,i386,powerpc}/jre/bin/java cx -> browser_openjdk,
but this does not:
/usr/lib/jvm/java-6-openjdk*/jre/bin/java cx -> browser_openjdk,
The default- jre-headless was a red herring (y testing apparently failed). However, why this works: jvm/java- 6-openjdk/ jre/bin/ java cx -> browser_openjdk, jvm/java- 6-openjdk- {amd64, armel,armhf, i386,powerpc} /jre/bin/ java cx -> browser_openjdk,
/usr/lib/
/usr/lib/
but this does not: jvm/java- 6-openjdk* /jre/bin/ java cx -> browser_openjdk,
/usr/lib/
is still confusing.