Throw a better error than 'null' when someone removes all groups from a

yml.

1 files changed, 4 insertions, 0 deletions

diff --git a/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/WorldDataHolder.java b/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/WorldDataHolder.java
index 1ccd48772..3df3271a3 100644
--- a/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/WorldDataHolder.java
+++ b/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/WorldDataHolder.java
@@ -508,6 +508,10 @@ public class WorldDataHolder {
 		} catch (Exception ex) {
 			throw new IllegalArgumentException("Your " + groupsFile.getPath() + " file is invalid. See console for details.", ex);
 		}
+		
+		if (allGroupsNode == null) {
+			throw new IllegalArgumentException("You have no groups in " + groupsFile.getPath() + ".");
+		}
 
 		Iterator<String> groupItr = allGroupsNode.keySet().iterator();
 		String groupKey;