Download Links:
Jdk : http://www.oracle.com/technetwork/java/javase/downloads/index.html
PostgreSql: http://www.postgresql.org/download/windows/
Apache Ant: https://ant.apache.org/bindownload.cgi
Apache Maven : https://maven.apache.org/download.cgi
Apache Tomcat: http://tomcat.apache.org/download-60.cgi