Index: addon-cms/src/main/java/org/onehippo/forge/selection/frontend/plugin/DynamicDropdownPlugin.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- addon-cms/src/main/java/org/onehippo/forge/selection/frontend/plugin/DynamicDropdownPlugin.java	(revision 1346)
+++ addon-cms/src/main/java/org/onehippo/forge/selection/frontend/plugin/DynamicDropdownPlugin.java	(revision )
@@ -51,6 +51,7 @@
 import org.hippoecm.frontend.model.event.IEvent;
 import org.hippoecm.frontend.model.event.IObserver;
 import org.hippoecm.frontend.model.event.Observer;
+import org.hippoecm.frontend.model.properties.JcrPropertyModel;
 import org.hippoecm.frontend.model.properties.JcrPropertyValueModel;
 import org.hippoecm.frontend.plugin.IPluginContext;
 import org.hippoecm.frontend.plugin.config.IPluginConfig;
@@ -84,7 +85,7 @@
  * regular option elements. Groups and options without a group are shown in  the order they are encountered in the
  * {@link org.onehippo.forge.selection.frontend.model.ValueList} used.
  */
-public class DynamicDropdownPlugin extends RenderPlugin<String>  {
+public class DynamicDropdownPlugin extends RenderPlugin<String> {
 
     private static final String SERVICE_VALUELIST_DEFAULT = "service.valuelist.default";
 
@@ -100,12 +101,17 @@
 
         // check the cnd for multiple, this is not supported (NB: check doesn't work for relaxed cnd)
         try {
+            final JcrPropertyModel jcrPropertymodel = getValueModel().getJcrPropertymodel();
+            if (jcrPropertymodel != null) {
-            final boolean multiple = getValueModel().getJcrPropertymodel().getProperty().getDefinition().isMultiple();
-            if (multiple) {
-                throw new IllegalStateException(this.getClass().getName() + " does not support fields that are multiple, " +
-                        "please use " + DynamicMultiSelectPlugin.class.getName() + " for that." +
-                        " Field name is " + getValueModel().getJcrPropertymodel().getProperty().getDefinition().getName() + ".");
-            }
+                final boolean multiple = getValueModel().getJcrPropertymodel().getProperty().getDefinition().isMultiple();
+                if (multiple) {
+                    throw new IllegalStateException(this.getClass().getName() + " does not support fields that are multiple, " +
+                            "please use " + DynamicMultiSelectPlugin.class.getName() + " for that." +
+                            " Field name is " + getValueModel().getJcrPropertymodel().getProperty().getDefinition().getName() + ".");
+                }
+            } else {
+                log.info("jcrproperty model in DynamicDropDownplugin is null while trying to retrieve is multiple");
+            }
         } catch (RepositoryException e) {
             throw new InstantiationError("Error instantiating " + this.getClass().getName() + ": " + e.getMessage());
         }
@@ -122,7 +128,7 @@
         final String observerId = config.getString(Config.OBSERVER_ID);
         if (StringUtils.isNotEmpty(observerId)) {
 
-            context.registerTracker(new ServiceTracker<IModelReference>(IModelReference.class){
+            context.registerTracker(new ServiceTracker<IModelReference>(IModelReference.class) {
 
                 private Observer<ObservableValueModel> observer;
 
@@ -207,8 +213,7 @@
         if ("edit".equals(mode)) {
             replace(createSelect(valueList));
             DynamicDropdownPlugin.this.redraw();
-        }
-        else {
+        } else {
             Label label = createValueLabel(valueList, mode);
             replace(label);
         }
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