Exception on query

gistfile1.txt

--Request--
POST http://localhost:7474/db/data/cypher HTTP/1.1
Content-Type: application/json
Accept: application/json
HOST: localhost
Content-Length: 80

{"query":"start x  = node(85324) match x -[r]-> n return type(r)","params":null}

--Response--
((:EXCEPTION . "java.lang.NullPointerException")                                                                 
 (:STACKTRACE                                                                                                    
  "scala.collection.JavaConversions$JMapWrapperLike$$anon$2.<init>(JavaConversions.scala:782)"                   
  "scala.collection.JavaConversions$JMapWrapperLike$class.iterator(JavaConversions.scala:781)"                   
  "scala.collection.JavaConversions$JMapWrapper.iterator(JavaConversions.scala:792)"                             
  "scala.collection.IterableLike$class.foreach(IterableLike.scala:73)"                                           
  "scala.collection.JavaConversions$JMapWrapper.foreach(JavaConversions.scala:792)"                              
  "scala.collection.TraversableOnce$class.toMap(TraversableOnce.scala:256)"                                      
  "scala.collection.JavaConversions$JMapWrapper.toMap(JavaConversions.scala:792)"                                
  "org.neo4j.cypher.ExecutionEngine.execute(ExecutionEngine.scala:58)"                                           
  "org.neo4j.cypher.javacompat.ExecutionEngine.execute(ExecutionEngine.java:86)"                                 
  "org.neo4j.server.rest.web.CypherService.cypher(CypherService.java:67)"                                        
  "sun.reflect.GeneratedMethodAccessor188.invoke(Unknown Source)"                                                
  "sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)"                        
  "java.lang.reflect.Method.invoke(Method.java:616)"                                                             
  "com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)"             
  "com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._d\
ispatch(AbstractResourceMethodDispatchProvider.java:205)"                                                        
  "com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDisp\
atcher.java:75)"
--Snip--