Struts2: form not submitting

When using Struts2, here are some hints about what may be happening if after submit the data of your form isn't available within the corresponding action:

• 
  Check if on click you're effectively performing a submit and not just merely following a link; only the <s:submit> tag should be used or a link which calls a javascript:form.submit()!
  


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  Be sure that you have a public setter (and getter) within your action for all the variables you're submitting, otherwise the (private) member variables within your action will never receive a value!