I am a newbie to Ext JS and Java/JBoss....thrown into an already coded project (said to be 90% done)....lots of people were fired....I might be too.....if I don't try to understand the code to fix bugs...... I am trying to understand/decipher the following code:
Since you said the server is JBoss, try to find the web.xml file in the WEB-INF folder. The servlet mappings might be configured there.
The application might very well use a web framework under the hood. In that case URL mappings could also be configured in a different place.