$ sudo add-apt-repository ppa:sun-java-6/ppa
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv 34426C43BD098F06BEE366047606B1AB8F3A06EB
gpg: requesting key 8F3A06EB from hkp server keyserver.ubuntu.com
gpg: key 8F3A06EB: "Launchpad PPA for Sun Java 6" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1