wget http://mirror.sdunix.com/apache/tomcat/tomcat-7/v7.0.42/bin/apache-tomcat-7.0.42.tar.gz
tar -xzf apache-tomcat-7.0.42.tar.gz
rm apache-tomcat
ln -fs apache-tomcat-7.0.42 apache-tomcat

wget --no-check-certificate https://google-web-toolkit.googlecode.com/files/gwt-2.5.1.zip
unzip gwt-2.5.1.zip  -x */samples/* */doc/*
ln -fs gwt-2.5.1 gwt