anchor.diff:      private static final int DEFAULT_FACET_MAXHIT = 10;
       private static final Map<String, String> _fastutilTypeMap;
       private static final Map<String, String> _internalVarMap;
  +    private static final Map<String, String> _internalStaticVarMap;    
       private static final Set<String> _supportedClasses;
       private static Map<String, Set<String>> _compatibleFacetTypes;
   
  
positive.code:                 // Internal variables, like _NOW, do not need to be
                  // included in "variables".
                  for (String varName: _usedInternalVars) {
                      funcParams.put(varName);
                  }
              }
              catch (JSONException err) {
  
negative.code:         _internalVarMap = new HashMap<String, String>();
          _internalVarMap.put("_NOW", "long");
          _internalVarMap.put("_INNER_SCORE", "float");
          _internalVarMap.put("_RANDOM", "java.util.Random");
          
          _internalStaticVarMap = new HashMap<String, String>();
          _internalStaticVarMap.put("_RANDOM", "java.util.Random");
  
          _supportedClasses = new HashSet<String>();
          _supportedClasses.add("Boolean");
  