bugfix

Author: baltzell

common-tools/clara-io/src/main/java/org/jlab/io/clara/Clas12Writer.java

@@ -66,7 +66,7 @@ protected HipoWriterSorted createWriter(Path file, JSONObject opts) throws Event
     protected void writeEvent(Object event) throws EventWriterException {
         Event t = serial.read((Event)event);
         if (!t.isEmpty()) writer.addEvent(t, 1);
-        occupancer.process(t);
+        occupancer.process(((Event)event));
         super.writeEvent(event);
     }