[157575] [Editor] NPE in XSDEditor when outline view not opened

bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/editor/InternalXSDMultiPageEditor.java

diff --git a/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/editor/InternalXSDMultiPageEditor.java b/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/editor/InternalXSDMultiPageEditor.java
index 92e409b..11907f3 100644
--- a/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/editor/InternalXSDMultiPageEditor.java
+++ b/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/editor/InternalXSDMultiPageEditor.java
@@ -1009,4 +1009,10 @@
     manager.setProductCustomizationProvider(productCustomizationProvider);
     return manager;
   }
+  
+  protected void storeCurrentModePreference(String id)
+  {
+    XSDEditorPlugin.getPlugin().getPreferenceStore().setValue(DEFAULT_EDITOR_MODE_ID, id);
+  }
+
 }  
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