title: A weird error occurs on my xml-file during eclipse start and goes away after maven update
body: <p>I have a weird error that occurs on my camel-config.xml file that occurs on my datasource pooling. When I start my eclipse, the error shows up that says "Processing XML Error. Resource must not be null", and goes away after I do maven update. I wanted to know what's causing the error to occur in the first place and why does it go away after I update it. Its oracle datapooling and not even related to logic of a particular project. Any thoughts, suggestions or views about this problem are appreciated.</p>
  
  <p>I'm getting error on this piece of code.</p>
  
  <pre><code> &lt;orcl:pooling-datasource id="dataSource1"
      url="${oracle.db1.url}" username="${oracle.db1.username}" password="${oracle.db1.password}"/&gt;
  &lt;orcl:pooling-datasource id="dataSource2"
      url="${oracle.db2.url}" username="${oracle.db2.username}" password="${oracle.db2.password}"/&gt;
  &lt;orcl:pooling-datasourc
  e id="dataSource3"
      url="${oracle.db3.url}" username="${oracle.db3.username}" password="${oracle.db3.password}"/&gt; 
  </code></pre>
  
  <p>Thanks,
  Gautham </p>