Java

References:

• Official Axis2 site (Java version)
  Apache Axis2 is a Web Services / SOAP / WSDL engine.
  There are two implementations of the Apache Axis2 Web services engine - Apache Axis2/Java and Apache Axis2/C (we are interested on the java version here)
• Apache Axis2 Installation Guide
• Apache Axis2 - Apache Axis2 Tutorial - a nice tutorial building everything from scratch (no IDE);
• Axis2 Quick Start Guide 
• Apache Axis2 User's Guide -Building Services 
• AXIS STEP BY STEP (nice tutorial with: axis2; tomcat; eclipse; ant)
• Introducão de  web services PT muita informaçao;

It is advised to add the AXIS2_HOME/bin to the PATH, so that you'll be able to run the following scripts from anywhere.

Axis2 wsdl2java and java2wsdl

• Parameters info;
• Building a webservice starting from a wsdl file

Skeletons generation example (for the webservice):
%AXIS2_HOME%\bin\wsdl2java.bat -uri file:\\\C:\apps\axis2\samples\zSample\Axis2UserGuide.wsdl -p org.apache.axis2.axis2userguide -o target_directory_name -d adb -s -wv 1.6.2 -ss -sd

Stubs generation example (for the webservice client):
%AXIS2_HOME%\bin\WSDL2Java -uri Axis2UserGuide.wsdl -p org.apache.axis2.axis2userguide -d adb -s