NIHVIVO-3087 Improve handling of method invocation in argumentless method dump. Add unit test for this case.

webapp/src/freemarker/ext/beans/WrapperExtractor.java

@@ -0,0 +1,21 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
+package freemarker.ext.beans;
+
+
+/**
+ * Class to expose template model wrapper. Used as workaround to gaps
+ * in the Freemarker template model API (can't get wrapper for an
+ * arbitrary template model object).
+ */
+public class WrapperExtractor {
+    
+    public static BeansWrapper getWrapper(BeanModel model) {
+        return model.wrapper;
+    }
+    
+    public static int getWrapperExposureLevel(BeanModel model) {
+        return model.wrapper.getExposureLevel();
+    }
+    
+}