1. Download source code from Eclipse.
For example, I used this one:
From here: http://download.eclipse.org/jetty/ Get this one: jetty-8.1.15.v20140411
2. Read this:
http://docs.codehaus.org/display/JETTY/Building+from+Source
3. Prepare JDK and Maven:
SET JAVA_HOME=C:\Languages\Java\JDK\jdk_x86_1.6.0_34 SET MAVEN_HOME=C:\Languages\Java\JavaTools\apache-maven-3.0.4 SET PATH=%MAVEN_HOME%\bin;%JAVA_HOME%\bin;%PATH% CMD
4. Run “mvn install”
5. Use eclipse to import maven project