title: What means this Grails-error: "Cannot read write-only property: emptyStringsToNull"?
body: <p>In a grails-program I get the following exception:</p>
  
  <pre><code>Stacktrace follows:
  groovy.lang.GroovyRuntimeException: Cannot read write-only property: emptyStringsToNull
      at geoway.catalogue.controller.CswController$_closure1.doCall(CswController.groovy:19)
      at geoway.catalogue.controller.CswController$_closure1.doCall(CswController.groovy)
      at java.lang.Thread.run(Thread.java:679)
  </code></pre>
  
  <p>At this point in the code, I can find the following line:</p>
  
  <pre><code>redirect(action:list,params:params)
  </code></pre>
  
  <p>The whole project doesn't contain a string 'emptyStringsToNull'. How do I find the problem?</p>