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java.lang.NullPointerException: null	at net.opentsdb.tsd.QueryExecutor$1QueriesCB.call(QueryExecutor.java:327)	at net.opentsdb.tsd.QueryExecutor$1QueriesCB.call(QueryExecutor.java:251)	at com.stumbleupon.async.Deferred.doCall(Deferred.java:1278)