these should be the correct symlinks, I guess the update did something wrong with it.
$ ls -l /usr/lib/jvm/java-?-openjdk-amd64/jre/lib/zi lrwxrwxrwx 1 root root 27 Jan 22 2012 /usr/lib/jvm/java-6-openjdk-amd64/jre/lib/zi -> ../../../../../share/javazi lrwxrwxrwx 1 root root 27 Feb 25 2012 /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/zi -> ../../../../../share/javazi
these should be the correct symlinks, I guess the update did something wrong with it.
$ ls -l /usr/lib/ jvm/java- ?-openjdk- amd64/jre/ lib/zi jvm/java- 6-openjdk- amd64/jre/ lib/zi -> ../../. ./../.. /share/ javazi jvm/java- 7-openjdk- amd64/jre/ lib/zi -> ../../. ./../.. /share/ javazi
lrwxrwxrwx 1 root root 27 Jan 22 2012 /usr/lib/
lrwxrwxrwx 1 root root 27 Feb 25 2012 /usr/lib/