deleting the contents of GlobalGroups.yml will no longer thrown a

NullPointerException.

EssentialsGroupManager/src/Changelog.txt

@@ -85,3 +85,4 @@ v 1.7:
 	- Offline player checks now support partial name matches.
 	- Added custom events so plugins can now be notified of changes within GroupManager.
 	- GM now registers with Bukkits ServicesManager.
+	- deleting the contents of GlobalGroups.yml will no longer thrown a NullPointerException.

EssentialsGroupManager/src/org/anjocaido/groupmanager/GlobalGroups.java

@@ -107,13 +107,15 @@ public class GlobalGroups {
 			throw new IllegalArgumentException("The following file couldn't pass on Parser.\n" + GlobalGroupsFile.getPath(), ex);
 		}
 
+		// Clear out old groups
+		resetGlobalGroups();
+		
+		if (!GGroups.getKeys(false).isEmpty()) {
 			// Read all global groups
 			Map<String, Object> allGroups = (Map<String, Object>) GGroups.getConfigurationSection("groups").getValues(false);
 	
 			// Load each groups permissions list.
 			if (allGroups != null) {
-			// Clear out old groups
-			resetGlobalGroups();
 				for (String groupName : allGroups.keySet()) {
 					Group newGroup = new Group(groupName.toLowerCase());
 					Object element;
@@ -150,6 +152,8 @@ public class GlobalGroups {
 			}
 		
 			removeGroupsChangedFlag();
+		}
+		
 		setTimeStampGroups(GlobalGroupsFile.lastModified());
 		GroupManager.setLoaded(true);
 		//GlobalGroupsFile = null;