2017-05-01 12:11:04,311 WARN  org.eclipse.jetty.server.HttpChannel - /pipeline
java.lang.NullPointerException
	at clojure.lang.Numbers.ops(Numbers.java:1013)
	at clojure.lang.Numbers.gt(Numbers.java:229)
	at clojure.core$_GT_.invokeStatic(core.clj:1069)
	at clojure.core$_GT_.invoke(core.clj:1062)
	at clara.rules.accumulators$comparison_based$reduce_fn__42536.invoke(accumulators.cljc:104)
	at clojure.lang.ArrayChunk.reduce(ArrayChunk.java:63)
	at clojure.core.protocols$fn__9138.invokeStatic(protocols.clj:136)
	at clojure.core.protocols$fn__9138.invoke(protocols.clj:124)
	at clojure.core.protocols$fn__9098$G__9093__9107.invoke(protocols.clj:19)
	at clojure.core.protocols$seq_reduce.invokeStatic(protocols.clj:31)
	at clojure.core.protocols$fn__9128.invokeStatic(protocols.clj:75)
	at clojure.core.protocols$fn__9128.invoke(protocols.clj:75)
	at clojure.core.protocols$fn__9072$G__9067__9085.invoke(protocols.clj:13)
	at clojure.core.reducers$reduce.invokeStatic(reducers.clj:79)
	at clojure.core.reducers$reduce.invoke(reducers.clj:71)
	at clara.rules.engine$do_accumulate.invokeStatic(engine.cljc:660)
	at clara.rules.engine$do_accumulate.invoke(engine.cljc:657)
	at clara.rules.engine.AccumulateNode.left_activate(engine.cljc:728)
	at clara.rules.engine$eval29038$fn__29082$G__29024__29089.invoke(engine.cljc:72)
	at clara.rules.engine$eval29038$fn__29082$G__29023__29097.invoke(engine.cljc:72)
	at clara.rules.engine$propagate_items_to_nodes.invokeStatic(engine.cljc:110)
	at clara.rules.engine$propagate_items_to_nodes.invoke(engine.cljc:102)
	at clara.rules.engine.LocalTransport.send_tokens(engine.cljc:134)
	at clara.rules.engine.TestNode.left_activate(engine.cljc:648)
	at clara.rules.engine$eval29038$fn__29082$G__29024__29089.invoke(engine.cljc:72)
	at clara.rules.engine$eval29038$fn__29082$G__29023__29097.invoke(engine.cljc:72)
	at clara.rules.engine$propagate_items_to_nodes.invokeStatic(engine.cljc:120)
	at clara.rules.engine$propagate_items_to_nodes.invoke(engine.cljc:102)
	at clara.rules.engine.LocalTransport.send_tokens(engine.cljc:134)
	at clara.rules.engine.HashJoinNode.left_activate(engine.cljc:411)
	at clara.rules.engine$eval29038$fn__29082$G__29024__29089.invoke(engine.cljc:72)
	at clara.rules.engine$eval29038$fn__29082$G__29023__29097.invoke(engine.cljc:72)
	at clara.rules.engine$propagate_items_to_nodes.invokeStatic(engine.cljc:110)
	at clara.rules.engine$propagate_items_to_nodes.invoke(engine.cljc:102)
	at clara.rules.engine.LocalTransport.send_tokens(engine.cljc:134)
	at clara.rules.engine.HashJoinNode.right_activate(engine.cljc:441)
	at clara.rules.engine$eval29119$fn__29120$G__29109__29127.invoke(engine.cljc:80)
	at clara.rules.engine$eval29119$fn__29120$G__29108__29135.invoke(engine.cljc:80)
	at clara.rules.engine$propagate_items_to_nodes.invokeStatic(engine.cljc:120)
	at clara.rules.engine$propagate_items_to_nodes.invoke(engine.cljc:102)
	at clara.rules.engine.LocalTransport.send_elements(engine.cljc:131)
	at clara.rules.engine.AlphaNode.alpha_activate(engine.cljc:337)
	at clara.rules.engine$flush_updates$flush_all__29435.invoke(engine.cljc:176)
	at clara.rules.engine$flush_updates.invokeStatic(engine.cljc:184)
	at clara.rules.engine$flush_updates.invoke(engine.cljc:156)
	at clara.rules.engine$fire_rules_STAR_.invokeStatic(engine.cljc:1440)
	at clara.rules.engine$fire_rules_STAR_.invoke(engine.cljc:1348)
	at clara.rules.engine.LocalSession.fire_rules(engine.cljc:1483)
	at clara.rules$fire_rules.invokeStatic(rules.cljc:36)
	at clara.rules$fire_rules.invoke(rules.cljc:29)
	at crede.rules$run_rules.invokeStatic(rules.clj:73)
	at crede.rules$run_rules.invoke(rules.clj:42)
	at crede.process$apply_crede_rules.invokeStatic(process.clj:82)
	at crede.process$apply_crede_rules.invoke(process.clj:71)
	at crede.process$process_snapshot.invokeStatic(process.clj:94)
	at crede.process$process_snapshot.invoke(process.clj:85)
	at crede.transceiver$pipeline.invokeStatic(transceiver.clj:16)
	at crede.transceiver$pipeline.invoke(transceiver.clj:8)
	at crede.transceiver$pipeline.invokeStatic(transceiver.clj:10)
	at crede.transceiver$pipeline.invoke(transceiver.clj:8)
	at crede.server$fn__54297.invokeStatic(server.clj:23)
	at crede.server$fn__54297.invoke(server.clj:23)
	at compojure.core$make_route$fn__52301.invoke(core.clj:135)
	at compojure.core$wrap_route_middleware$fn__52294.invoke(core.clj:122)
	at compojure.core$wrap_route_info$fn__52298.invoke(core.clj:126)
	at compojure.core$if_route$fn__52246.invoke(core.clj:45)
	at compojure.core$if_method$fn__52236.invoke(core.clj:27)
	at compojure.core$routing$fn__52308.invoke(core.clj:151)
	at clojure.core$some.invokeStatic(core.clj:2674)
	at clojure.core$some.invoke(core.clj:2665)
	at compojure.core$routing.invokeStatic(core.clj:151)
	at compojure.core$routing.doInvoke(core.clj:148)
	at clojure.lang.RestFn.applyTo(RestFn.java:139)
	at clojure.core$apply.invokeStatic(core.clj:659)
	at clojure.core$apply.invoke(core.clj:652)
	at compojure.core$routes$fn__52312.invoke(core.clj:156)
	at ring.middleware.transit$wrap_transit_response$fn__54284.invoke(transit.clj:136)
	at ring.middleware.conditional$if$fn__52415.invoke(conditional.clj:24)
	at ring.middleware.transit$transit_handler$fn__54250.invoke(transit.clj:59)
	at ring.middleware.keyword_params$wrap_keyword_params$fn__52830.invoke(keyword_params.clj:35)
	at ring.middleware.params$wrap_params$fn__53106.invoke(params.clj:64)
	at ring.middleware.absolute_redirects$wrap_absolute_redirects$fn__53280.invoke(absolute_redirects.clj:38)
	at ring.middleware.content_type$wrap_content_type$fn__53233.invoke(content_type.clj:30)
	at ring.middleware.default_charset$wrap_default_charset$fn__53255.invoke(default_charset.clj:26)
	at ring.middleware.not_modified$wrap_not_modified$fn__53208.invoke(not_modified.clj:52)
	at clojure.lang.Var.invoke(Var.java:379)
	at ring.adapter.jetty$proxy_handler$fn__43874.invoke(jetty.clj:24)
	at ring.adapter.jetty.proxy$org.eclipse.jetty.server.handler.AbstractHandler$ff19274a.handle(Unknown Source)
	at org.eclipse.jetty.servlets.gzip.GzipHandler.handle(GzipHandler.java:299)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:497)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
	at java.lang.Thread.run(Thread.java:745)