TheMatrixTraversalHack.scala throws exception

[epiphyllum]

OS: OSX EI Captain 10.11.6
JDK: 1.8.0_74
neo4j-scala version: 0.3.3

the exception is as follow:

/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/bin/java -Didea.launcher.port=7532 "-Didea.launcher.bin.path=/Applications/IntelliJ IDEA.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath "/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/lib/tools.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Users/hary/workspace/aegis-all/aegis-cyflow/target/scala-2.11/classes:/Users/hary/.ivy2/cache/ch.qos.logback/logback-classic/jars/logback-classic-1.1.3.jar:/Users/hary/.ivy2/cache/org.parboiled/parboiled-scala_2.11/jars/parboiled-scala_2.11-1.1.7.jar:/Users/hary/.ivy2/cache/org.parboiled/parboiled-core/jars/parboiled-core-1.1.7.jar:/Users/hary/.ivy2/cache/org.ow2.asm/asm/jars/asm-5.0.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-unsafe/jars/neo4j-unsafe-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-shell/jars/neo4j-shell-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-primitive-collections/jars/neo4j-primitive-collections-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-lucene-index/jars/neo4j-lucene-index-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-logging/jars/neo4j-logging-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-kernel/jars/neo4j-kernel-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-io/jars/neo4j-io-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-graph-matching/jars/neo4j-graph-matching-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-graph-algo/jars/neo4j-graph-algo-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-function/jars/neo4j-function-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-cypher-frontend-2.3/jars/neo4j-cypher-frontend-2.3-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-cypher-compiler-2.3/jars/neo4j-cypher-compiler-2.3-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-cypher-compiler-2.2_2.11/jars/neo4j-cypher-compiler-2.2_2.11-2.2.6.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-cypher-compiler-1.9_2.11/jars/neo4j-cypher-compiler-1.9_2.11-2.0.5.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-cypher/jars/neo4j-cypher-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-csv/jars/neo4j-csv-2.3.2.jar:/Users/hary/.ivy2/cache/org.neo4j/neo4j-codegen/jars/neo4j-codegen-2.3.2.jar:/Users/hary/.ivy2/cache/org.apache.lucene/lucene-core/jars/lucene-core-3.6.2.jar:/Users/hary/.ivy2/cache/org.apache.commons/commons-lang3/jars/commons-lang3-3.3.2.jar:/Users/hary/.ivy2/cache/net.sf.opencsv/opencsv/jars/opencsv-2.3.jar:/Users/hary/.ivy2/cache/jline/jline/jars/jline-2.12.jar:/Users/hary/.ivy2/cache/eu.fakod/neo4j-scala_2.11/jars/neo4j-scala_2.11-0.3.3.jar:/Users/hary/.ivy2/cache/com.googlecode.concurrentlinkedhashmap/concurrentlinkedhashmap-lru/jars/concurrentlinkedhashmap-lru-1.4.2.jar:/Users/hary/.ivy2/cache/ch.qos.logback/logback-core/jars/logback-core-1.1.3.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.core/jackson-annotations/bundles/jackson-annotations-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.core/jackson-core/bundles/jackson-core-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.core/jackson-databind/bundles/jackson-databind-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.dataformat/jackson-dataformat-xml/bundles/jackson-dataformat-xml-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.dataformat/jackson-dataformat-yaml/bundles/jackson-dataformat-yaml-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.datatype/jackson-datatype-joda/bundles/jackson-datatype-joda-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.jaxrs/jackson-jaxrs-base/bundles/jackson-jaxrs-base-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.jaxrs/jackson-jaxrs-json-provider/bundles/jackson-jaxrs-json-provider-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.module/jackson-module-jaxb-annotations/bundles/jackson-module-jaxb-annotations-2.4.5.jar:/Users/hary/.ivy2/cache/com.fasterxml.jackson.module/jackson-module-scala_2.11/bundles/jackson-module-scala_2.11-2.4.2.jar:/Users/hary/.ivy2/cache/com.github.swagger-akka-http/swagger-akka-http_2.11/jars/swagger-akka-http_2.11-0.7.2.jar:/Users/hary/.ivy2/cache/com.google.code.findbugs/annotations/jars/annotations-2.0.1.jar:/Users/hary/.ivy2/cache/com.google.code.findbugs/jsr305/jars/jsr305-2.0.1.jar:/Users/hary/.ivy2/cache/com.google.guava/guava/bundles/guava-18.0.jar:/Users/hary/.ivy2/cache/com.softwaremill.quicklens/quicklens_2.11/jars/quicklens_2.11-1.4.8.jar:/Users/hary/.ivy2/cache/com.sun.xml.bind/jaxb-core/jars/jaxb-core-2.2.11.jar:/Users/hary/.ivy2/cache/com.sun.xml.bind/jaxb-impl/jars/jaxb-impl-2.2.11.jar:/Users/hary/.ivy2/cache/com.thoughtworks.paranamer/paranamer/jars/paranamer-2.6.jar:/Users/hary/.ivy2/cache/com.typesafe/config/bundles/config-1.3.0.jar:/Users/hary/.ivy2/cache/com.typesafe/ssl-config-akka_2.11/bundles/ssl-config-akka_2.11-0.2.1.jar:/Users/hary/.ivy2/cache/com.typesafe/ssl-config-core_2.11/bundles/ssl-config-core_2.11-0.2.1.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-actor_2.11/jars/akka-actor_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-camel_2.11/jars/akka-camel_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-cluster-sharding_2.11/jars/akka-cluster-sharding_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-cluster-tools_2.11/jars/akka-cluster-tools_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-cluster_2.11/jars/akka-cluster_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-http-core_2.11/jars/akka-http-core_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-http-experimental_2.11/jars/akka-http-experimental_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-http-spray-json-experimental_2.11/jars/akka-http-spray-json-experimental_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-parsing_2.11/jars/akka-parsing_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-persistence_2.11/jars/akka-persistence_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-protobuf_2.11/jars/akka-protobuf_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-remote_2.11/jars/akka-remote_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-slf4j_2.11/jars/akka-slf4j_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.akka/akka-stream_2.11/jars/akka-stream_2.11-2.4.11.jar:/Users/hary/.ivy2/cache/com.typesafe.slick/slick_2.11/bundles/slick_2.11-3.1.1.jar:/Users/hary/.ivy2/cache/com.wix/accord-api_2.11/jars/accord-api_2.11-0.6.jar:/Users/hary/.ivy2/cache/com.wix/accord-core_2.11/jars/accord-core_2.11-0.6.jar:/Users/hary/.ivy2/cache/com.zaxxer/HikariCP/bundles/HikariCP-2.4.5.jar:/Users/hary/.ivy2/cache/io.aeron/aeron-client/jars/aeron-client-1.0.1.jar:/Users/hary/.ivy2/cache/io.aeron/aeron-driver/jars/aeron-driver-1.0.1.jar:/Users/hary/.ivy2/cache/io.netty/netty/bundles/netty-3.10.6.Final.jar:/Users/hary/.ivy2/cache/io.spray/spray-json_2.11/bundles/spray-json_2.11-1.3.2.jar:/Users/hary/.ivy2/cache/io.swagger/swagger-annotations/bundles/swagger-annotations-1.5.9.jar:/Users/hary/.ivy2/cache/io.swagger/swagger-core/jars/swagger-core-1.5.9.jar:/Users/hary/.ivy2/cache/io.swagger/swagger-jaxrs/bundles/swagger-jaxrs-1.5.9.jar:/Users/hary/.ivy2/cache/io.swagger/swagger-models/bundles/swagger-models-1.5.9.jar:/Users/hary/.ivy2/cache/io.swagger/swagger-scala-module_2.11/jars/swagger-scala-module_2.11-1.0.2.jar:/Users/hary/.ivy2/cache/javax.servlet/javax.servlet-api/jars/javax.servlet-api-3.1.0.jar:/Users/hary/.ivy2/cache/javax.validation/validation-api/jars/validation-api-1.1.0.Final.jar:/Users/hary/.ivy2/cache/javax.ws.rs/jsr311-api/jars/jsr311-api-1.1.1.jar:/Users/hary/.ivy2/cache/joda-time/joda-time/jars/joda-time-2.2.jar:/Users/hary/.ivy2/cache/mysql/mysql-connector-java/jars/mysql-connector-java-6.0.5.jar:/Users/hary/.ivy2/cache/org.agrona/Agrona/jars/Agrona-0.5.4.jar:/Users/hary/.ivy2/cache/org.apache.camel/camel-core/bundles/camel-core-2.16.4.jar:/Users/hary/.ivy2/cache/org.apache.camel/camel-http-common/bundles/camel-http-common-2.16.4.jar:/Users/hary/.ivy2/cache/org.apache.camel/camel-jetty/bundles/camel-jetty-2.16.4.jar:/Users/hary/.ivy2/cache/org.apache.camel/camel-jetty-common/bundles/camel-jetty-common-2.16.4.jar:/Users/hary/.ivy2/cache/org.apache.camel/camel-jetty9/bundles/camel-jetty9-2.16.4.jar:/Users/hary/.ivy2/cache/org.apache.camel/camel-quartz/bundles/camel-quartz-2.16.4.jar:/Users/hary/.ivy2/cache/org.codehaus.woodstox/stax2-api/bundles/stax2-api-3.1.4.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-client/jars/jetty-client-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-continuation/jars/jetty-continuation-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-http/jars/jetty-http-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-io/jars/jetty-io-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-jmx/jars/jetty-jmx-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-security/jars/jetty-security-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-server/jars/jetty-server-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-servlet/jars/jetty-servlet-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-servlets/jars/jetty-servlets-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.eclipse.jetty/jetty-util/jars/jetty-util-9.2.11.v20150529.jar:/Users/hary/.ivy2/cache/org.flywaydb/flyway-core/jars/flyway-core-3.2.1.jar:/Users/hary/.ivy2/cache/org.fusesource.leveldbjni/leveldbjni-all/bundles/leveldbjni-all-1.8.jar:/Users/hary/.ivy2/cache/org.iq80.leveldb/leveldb/jars/leveldb-0.7.jar:/Users/hary/.ivy2/cache/org.iq80.leveldb/leveldb-api/jars/leveldb-api-0.7.jar:/Users/hary/.ivy2/cache/org.javassist/javassist/bundles/javassist-3.18.2-GA.jar:/Users/hary/.ivy2/cache/org.quartz-scheduler/quartz/jars/quartz-1.8.6.jar:/Users/hary/.ivy2/cache/org.reactivestreams/reactive-streams/jars/reactive-streams-1.0.0.jar:/Users/hary/.ivy2/cache/org.reflections/reflections/jars/reflections-0.9.10.jar:/Users/hary/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.8.jar:/Users/hary/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.11.8.jar:/Users/hary/.ivy2/cache/org.scala-lang.modules/scala-java8-compat_2.11/bundles/scala-java8-compat_2.11-0.7.0.jar:/Users/hary/.ivy2/cache/org.scala-lang.modules/scala-parser-combinators_2.11/bundles/scala-parser-combinators_2.11-1.0.4.jar:/Users/hary/.ivy2/cache/org.scala-lang.modules/scala-xml_2.11/bundles/scala-xml_2.11-1.0.2.jar:/Users/hary/.ivy2/cache/org.scalamacros/resetallattrs_2.11/jars/resetallattrs_2.11-1.0.0.jar:/Users/hary/.ivy2/cache/org.scalatest/scalatest_2.11/bundles/scalatest_2.11-2.2.6.jar:/Users/hary/.ivy2/cache/org.slf4j/slf4j-api/jars/slf4j-api-1.7.16.jar:/Users/hary/.ivy2/cache/org.slf4j/slf4j-nop/jars/slf4j-nop-1.6.4.jar:/Users/hary/.ivy2/cache/org.uncommons.maths/uncommons-maths/jars/uncommons-maths-1.2.2a.jar:/Users/hary/.ivy2/cache/org.yaml/snakeyaml/bundles/snakeyaml-1.12.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar" com.intellij.rt.execution.application.AppMain com.yimei.cflow.TheMatrix
Relations KNOWS, sorted by name and depth == 1: List(Matrix(Morpheus,Hacker), Matrix(Neo,Hacker))
Exception in thread "main" org.neo4j.graphdb.NotInTransactionException
at org.neo4j.kernel.impl.core.ThreadToStatementContextBridge.assertInUnterminatedTransaction(ThreadToStatementContextBridge.java:71)
at org.neo4j.kernel.impl.core.ThreadToStatementContextBridge.assertInUnterminatedTransaction(ThreadToStatementContextBridge.java:82)
at org.neo4j.kernel.impl.core.NodeManager$NodeActionsImpl.assertInUnterminatedTransaction(NodeManager.java:165)
at org.neo4j.kernel.impl.core.NodeProxy.assertInUnterminatedTransaction(NodeProxy.java:282)
at org.neo4j.kernel.impl.core.NodeProxy.traverse(NodeProxy.java:607)
at eu.fakod.neo4jscala.TypedTraverser$TraversableNode.doTraverse(TypedTraverser.scala:155)
at com.yimei.cflow.TheMatrix$.delayedEndpoint$com$yimei$cflow$TheMatrix$1(Neo4jTest.scala:88)
at com.yimei.cflow.TheMatrix$delayedInit$body.apply(Neo4jTest.scala:21)
at scala.Function0$class.apply$mcV$sp(Function0.scala:34)
at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
at scala.App$$anonfun$main$1.apply(App.scala:76)
at scala.App$$anonfun$main$1.apply(App.scala:76)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)
at scala.App$class.main(App.scala:76)
at com.yimei.cflow.TheMatrix$.main(Neo4jTest.scala:21)
at com.yimei.cflow.TheMatrix.main(Neo4jTest.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

Process finished with exit code 1