update-alternatives just for one user

I'm using a shared server. On that server different versions of Java are installed: Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 auto mode * 1 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 manual mode 2 /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode I would like to choose the Second options, but if I tried to do that it complains that I do not have the permissions (I'm not root). Is there a way to do that in "user-space"? Can the Root user make this preference works only for me?