title: How to pass Java null strings to Fitnesse
body: <p>Following the Fitnesse <a href="http://fitnesse.org/FitNesse.SuiteAcceptanceTests.SuiteFixtureTests.SuiteGeneralFixtureSpec.TestBlankAndNullCells" rel="nofollow">TestBlankAndNullCells</a> documentation, I am trying to pass null fields into the verify tables. My data types are Strings.</p>
  
  <p>When I leave the field blank, there is a solid red square with no information. When I try adding "null," the actual is empty. The same problem occurred using "blank". Am I missing something? </p>
  
  <p><a href="http://fitnesse.org/FitNesse.UserGuide.DotNet.SuiteAcceptanceTests.SuiteCellHandlerTests.SuiteDefaultCellHandlerTests.TestBlankAndNullKeywords" rel="nofollow">Here</a> is more documentation on it, which states the keywords "blank" or "null" are required. I was able to manually return the string "null" as the actual, which works when the expected is also the literal "null," but I am hoping to find a cleaner solution in which I can pass in null fields.</p>
  
  <p>According to <a href="http://fitnesse.996250.n3.nabble.com/Asserting-null-values-Java-td7083.html" rel="nofollow">this question</a> on the Fitnesse forums, it looks like Strings are treated differently with null values. </p>