[DL-Learner SVN] SF.net SVN: dl-learner:[4182] trunk/components-core/src/main/java/org/ dllearner/algorithms/isle/index/TokenTree.java

[<dfl...@us...>]

Revision: 4182
          http://sourceforge.net/p/dl-learner/code/4182
Author:   dfleischhacker
Date:     2013-12-02 14:41:21 +0000 (Mon, 02 Dec 2013)
Log Message:
-----------
Prevent possible NPE

Modified Paths:
--------------
    trunk/components-core/src/main/java/org/dllearner/algorithms/isle/index/TokenTree.java

Modified: trunk/components-core/src/main/java/org/dllearner/algorithms/isle/index/TokenTree.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/algorithms/isle/index/TokenTree.java	2013-12-02 14:34:42 UTC (rev 4181)
+++ trunk/components-core/src/main/java/org/dllearner/algorithms/isle/index/TokenTree.java	2013-12-02 14:41:21 UTC (rev 4182)
@@ -109,7 +109,7 @@
             }
         }
 
-        return fallback.entities;
+        return fallback == null ? Collections.<Entity>emptySet() : fallback.entities;
     }
 
     public static void main(String[] args) throws Exception {

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