maven:http://maven.apache.org/download.cgi
ant:http://ant.apache.org/bindownload.cgi
velocity:http://velocity.apache.org/download.cgi
Freemarker:http://freemarker.org/freemarkerdownload.html
gson:https://code.google.com/p/google-gson/downloads/list?can=1&q=
json-lib:http://sourceforge.net/projects/json-lib/files/
Hadoop:http://hadoop.apache.org/releases.html
tomcat:http://archive.apache.org/dist/tomcat/
jboss:http://sourceforge.net/projects/jboss/files/jboss/
apache:http://www.apache.org/
luncene:http://lucene.apache.org/
dbutils:http://commons.apache.org/proper/commons-dbutils//download_dbutils.cgi
poi:http://www.apache.org/dyn/closer.cgi/poi/release/
Jdom:http://www.jdom.org/downloads/index.html
dom4j:http://sourceforge.net/projects/dom4j/files/
jfinal:http://www.jfinal.com/
struts:http://struts.apache.org/download.cgi
spring:http://repo.spring.io/libs-release-local/org/springframework/spring/
hibernate:http://sourceforge.net/projects/hibernate/files/
Java Common Resources