System setup

From Cheatsheet

this installs stuff on Debian Squeeze

 apt-get install java-common javascript-common libmysql-java sun-java6-bin   sun-java6-jdk sun-java6-jre sun-java6-plugin

then add this to home/whateveruser/.bashrc

 export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.20
 export PATH=$PATH:$JAVA_HOME/bin
 CLASSPATH=".:/usr/share/java/mysql-connector-java-5.1.10.jar:/usr/share  /java/mysql-connector-java.jar"
 export CLASSPATH

now, re-login as you, so it will re-read .bashrc. you may have to change your classpath first . to /whatever/path/to/your/class files

now disable ipv6, or it will hoze you on Squeeze

 echo net.ipv6.conf.all.disable_ipv6=1 > /etc/sysctl.d/disableipv6.conf

you'll have to reboot for that to take effect. If you don't want to disable ipv6, run your java apps with this:

 java -Djava.net.preferIPv4Stack=true