http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13483

Patch from Jens Gerhard

PR:
Obtained from:
Submitted by:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352928 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/model/Sheet.java

@@ -431,9 +431,10 @@ public class Sheet implements Model
     }
 
     public int getNumMergedRegions()
-    {
-        return merged.getNumAreas();
-    }
+	{
+	    return merged!=null ? merged.getNumAreas() : 0;
+	}
+
 
     /**
      * This is basically a kludge to deal with the now obsolete Label records.  If