reduceEmpty.java

    @Test
    public void testReduce() {

        Observable<Integer> one = Observable.just(1);
        Observable<Integer> two = Observable.just(1,1);
        Observable<Integer> empty = Observable.empty();

        System.out.println(reduce(one));
        System.out.println(reduce(two));
        System.out.println(reduce(empty));


    }

    private Integer reduce(Observable<Integer> items) {
        return items.reduce((l, r) -> l + r)
                .toBlocking()
                .first();
    }

results.txt

/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/bin/java -ea -Didea.launcher.port=7536 "-Didea.launcher.bin.path=/Applications/IntelliJ IDEA 15.app/Contents/bin" -Didea.junit.sm_runner -Dfile.encoding=UTF-8 -classpath "/Applications/IntelliJ IDEA 15.app/Contents/lib/idea_rt.jar:/Applications/IntelliJ IDEA 15.app/Contents/plugins/junit/lib/junit-rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/lib/tools.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Users/jesse/Projects/boundary/services/sargon/sargon-one/target/test-classes:/Users/jesse/Projects/boundary/services/sargon/sargon-one/target/classes:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-core/0.8.1/dropwizard-core-0.8.1.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-util/0.8.1/dropwizard-util-0.8.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.5.0/jackson-annotations-2.5.0.jar:/Users/jesse/.m2/repository/joda-time/joda-time/2.7/joda-time-2.7.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-jackson/0.8.1/dropwizard-jackson-0.8.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk7/2.5.1/jackson-datatype-jdk7-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-guava/2.5.1/jackson-datatype-guava-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/module/jackson-module-afterburner/2.5.1/jackson-module-afterburner-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-joda/2.5.1/jackson-datatype-joda-2.5.1.jar:/Users/jesse/.m2/repository/ch/qos/logback/logback-classic/1.1.2/logback-classic-1.1.2.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-validation/0.8.1/dropwizard-validation-0.8.1.jar:/Users/jesse/.m2/repository/org/hibernate/hibernate-validator/5.1.3.Final/hibernate-validator-5.1.3.Final.jar:/Users/jesse/.m2/repository/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar:/Users/jesse/.m2/repository/org/jboss/logging/jboss-logging/3.1.3.GA/jboss-logging-3.1.3.GA.jar:/Users/jesse/.m2/repository/com/fasterxml/classmate/1.0.0/classmate-1.0.0.jar:/Users/jesse/.m2/repository/org/glassfish/javax.el/3.0.0/javax.el-3.0.0.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-configuration/0.8.1/dropwizard-configuration-0.8.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/dataformat/jackson-dataformat-yaml/2.5.1/jackson-dataformat-yaml-2.5.1.jar:/Users/jesse/.m2/repository/org/yaml/snakeyaml/1.12/snakeyaml-1.12.jar:/Users/jesse/.m2/repository/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-logging/0.8.1/dropwizard-logging-0.8.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-logback/3.1.1/metrics-logback-3.1.1.jar:/Users/jesse/.m2/repository/org/slf4j/jul-to-slf4j/1.7.10/jul-to-slf4j-1.7.10.jar:/Users/jesse/.m2/repository/ch/qos/logback/logback-core/1.1.2/logback-core-1.1.2.jar:/Users/jesse/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.10/jcl-over-slf4j-1.7.10.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-util/9.2.9.v20150224/jetty-util-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-metrics/0.8.1/dropwizard-metrics-0.8.1.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-jersey/0.8.1/dropwizard-jersey-0.8.1.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/core/jersey-server/2.17/jersey-server-2.17.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/core/jersey-common/2.17/jersey-common-2.17.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/bundles/repackaged/jersey-guava/2.17/jersey-guava-2.17.jar:/Users/jesse/.m2/repository/org/glassfish/hk2/osgi-resource-locator/1.0.1/osgi-resource-locator-1.0.1.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/core/jersey-client/2.17/jersey-client-2.17.jar:/Users/jesse/.m2/repository/javax/ws/rs/javax.ws.rs-api/2.0.1/javax.ws.rs-api-2.0.1.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/media/jersey-media-jaxb/2.17/jersey-media-jaxb-2.17.jar:/Users/jesse/.m2/repository/javax/annotation/javax.annotation-api/1.2/javax.annotation-api-1.2.jar:/Users/jesse/.m2/repository/org/glassfish/hk2/hk2-api/2.4.0-b10/hk2-api-2.4.0-b10.jar:/Users/jesse/.m2/repository/org/glassfish/hk2/hk2-utils/2.4.0-b10/hk2-utils-2.4.0-b10.jar:/Users/jesse/.m2/repository/org/glassfish/hk2/external/aopalliance-repackaged/2.4.0-b10/aopalliance-repackaged-2.4.0-b10.jar:/Users/jesse/.m2/repository/org/glassfish/hk2/external/javax.inject/2.4.0-b10/javax.inject-2.4.0-b10.jar:/Users/jesse/.m2/repository/org/glassfish/hk2/hk2-locator/2.4.0-b10/hk2-locator-2.4.0-b10.jar:/Users/jesse/.m2/repository/org/javassist/javassist/3.18.1-GA/javassist-3.18.1-GA.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/ext/jersey-metainf-services/2.17/jersey-metainf-services-2.17.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-jersey2/3.1.1/metrics-jersey2-3.1.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/jaxrs/jackson-jaxrs-json-provider/2.5.1/jackson-jaxrs-json-provider-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/jaxrs/jackson-jaxrs-base/2.5.1/jackson-jaxrs-base-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/module/jackson-module-jaxb-annotations/2.5.1/jackson-module-jaxb-annotations-2.5.1.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/containers/jersey-container-servlet/2.17/jersey-container-servlet-2.17.jar:/Users/jesse/.m2/repository/org/glassfish/jersey/containers/jersey-container-servlet-core/2.17/jersey-container-servlet-core-2.17.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-server/9.2.9.v20150224/jetty-server-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-io/9.2.9.v20150224/jetty-io-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-webapp/9.2.9.v20150224/jetty-webapp-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-xml/9.2.9.v20150224/jetty-xml-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-continuation/9.2.9.v20150224/jetty-continuation-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-servlets/0.8.1/dropwizard-servlets-0.8.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-annotation/3.1.1/metrics-annotation-3.1.1.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-jetty/0.8.1/dropwizard-jetty-0.8.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-jetty9/3.1.1/metrics-jetty9-3.1.1.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-servlet/9.2.9.v20150224/jetty-servlet-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-security/9.2.9.v20150224/jetty-security-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-servlets/9.2.9.v20150224/jetty-servlets-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/jetty-http/9.2.9.v20150224/jetty-http-9.2.9.v20150224.jar:/Users/jesse/.m2/repository/io/dropwizard/dropwizard-lifecycle/0.8.1/dropwizard-lifecycle-0.8.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-core/3.1.1/metrics-core-3.1.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-jvm/3.1.1/metrics-jvm-3.1.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-servlets/3.1.1/metrics-servlets-3.1.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-json/3.1.1/metrics-json-3.1.1.jar:/Users/jesse/.m2/repository/io/dropwizard/metrics/metrics-healthchecks/3.1.1/metrics-healthchecks-3.1.1.jar:/Users/jesse/.m2/repository/net/sourceforge/argparse4j/argparse4j/0.4.4/argparse4j-0.4.4.jar:/Users/jesse/.m2/repository/org/eclipse/jetty/toolchain/setuid/jetty-setuid-java/1.0.2/jetty-setuid-java-1.0.2.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.5.1/jackson-datatype-jdk8-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.5.1/jackson-core-2.5.1.jar:/Users/jesse/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.5.1/jackson-databind-2.5.1.jar:/Users/jesse/Projects/boundary/services/sargon/sargon-common/target/classes:/Users/jesse/.m2/repository/com/boundary/yeti/kafka/0.59/kafka-0.59.jar:/Users/jesse/.m2/repository/io/reactivex/rxjava/1.0.16/rxjava-1.0.16.jar:/Users/jesse/.m2/repository/io/reactivex/rxjava-async-util/0.21.0/rxjava-async-util-0.21.0.jar:/Users/jesse/.m2/repository/org/apache/kafka/kafka_2.9.1/0.8.1.1/kafka_2.9.1-0.8.1.1.jar:/Users/jesse/.m2/repository/org/scala-lang/scala-library/2.9.1/scala-library-2.9.1.jar:/Users/jesse/.m2/repository/com/yammer/metrics/metrics-core/2.2.0/metrics-core-2.2.0.jar:/Users/jesse/.m2/repository/net/sf/jopt-simple/jopt-simple/3.2/jopt-simple-3.2.jar:/Users/jesse/.m2/repository/com/101tec/zkclient/0.3/zkclient-0.3.jar:/Users/jesse/.m2/repository/org/apache/curator/curator-recipes/2.8.0/curator-recipes-2.8.0.jar:/Users/jesse/.m2/repository/org/apache/zookeeper/zookeeper/3.4.6/zookeeper-3.4.6.jar:/Users/jesse/.m2/repository/io/netty/netty/3.7.0.Final/netty-3.7.0.Final.jar:/Users/jesse/.m2/repository/com/bazaarvoice/curator/dropwizard/1.4.2/dropwizard-1.4.2.jar:/Users/jesse/.m2/repository/com/bazaarvoice/curator/core/1.4.2/core-1.4.2.jar:/Users/jesse/.m2/repository/com/boundary/dropwizard/consul/registration/0.8/registration-0.8.jar:/Users/jesse/.m2/repository/com/boundary/dropwizard/consul/client/0.8/client-0.8.jar:/Users/jesse/.m2/repository/com/orbitz/consul/consul-client/0.9.10/consul-client-0.9.10.jar:/Users/jesse/.m2/repository/org/immutables/value/2.1.4/value-2.1.4.jar:/Users/jesse/.m2/repository/com/boundary/dropwizard-boundary/0.5/dropwizard-boundary-0.5.jar:/Users/jesse/.m2/repository/com/boundary/metrics-boundary/0.5/metrics-boundary-0.5.jar:/Users/jesse/.m2/repository/com/boundary/meter-client/0.5/meter-client-0.5.jar:/Users/jesse/.m2/repository/io/netty/netty-handler/4.0.29.Final/netty-handler-4.0.29.Final.jar:/Users/jesse/.m2/repository/io/netty/netty-buffer/4.0.29.Final/netty-buffer-4.0.29.Final.jar:/Users/jesse/.m2/repository/io/netty/netty-common/4.0.29.Final/netty-common-4.0.29.Final.jar:/Users/jesse/.m2/repository/io/netty/netty-codec/4.0.29.Final/netty-codec-4.0.29.Final.jar:/Users/jesse/.m2/repository/io/netty/netty-transport/4.0.29.Final/netty-transport-4.0.29.Final.jar:/Users/jesse/.m2/repository/com/bmc/vortex/vortex-payload/0.0.9/vortex-payload-0.0.9.jar:/Users/jesse/.m2/repository/org/msgpack/msgpack-core/0.7.1/msgpack-core-0.7.1.jar:/Users/jesse/.m2/repository/com/bmc/vortex/vortex-envelope/0.0.9/vortex-envelope-0.0.9.jar:/Users/jesse/.m2/repository/com/boundary/yeti/vortex-producer/0.59/vortex-producer-0.59.jar:/Users/jesse/.m2/repository/com/boundary/yeti/yeti-partition/0.59/yeti-partition-0.59.jar:/Users/jesse/.m2/repository/com/boundary/yeti/lamprey-consumer/0.59/lamprey-consumer-0.59.jar:/Users/jesse/.m2/repository/com/boundary/lamprey/lamprey-core/0.38/lamprey-core-0.38.jar:/Users/jesse/.m2/repository/com/bazaarvoice/curator/recipes/1.4.2/recipes-1.4.2.jar:/Users/jesse/.m2/repository/org/jooq/jool/0.9.7/jool-0.9.7.jar:/Users/jesse/.m2/repository/org/slf4j/slf4j-api/1.7.12/slf4j-api-1.7.12.jar:/Users/jesse/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.12/log4j-over-slf4j-1.7.12.jar:/Users/jesse/.m2/repository/junit/junit/4.12/junit-4.12.jar:/Users/jesse/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar:/Users/jesse/.m2/repository/org/mockito/mockito-core/1.10.19/mockito-core-1.10.19.jar:/Users/jesse/.m2/repository/org/objenesis/objenesis/2.1/objenesis-2.1.jar:/Users/jesse/.m2/repository/org/assertj/assertj-core/3.2.0/assertj-core-3.2.0.jar:/Users/jesse/.m2/repository/com/palantir/curator-test-rule/0.0.2/curator-test-rule-0.0.2.jar:/Users/jesse/.m2/repository/com/google/guava/guava/18.0/guava-18.0.jar:/Users/jesse/.m2/repository/org/apache/curator/curator-framework/2.8.0/curator-framework-2.8.0.jar:/Users/jesse/.m2/repository/org/apache/curator/curator-client/2.8.0/curator-client-2.8.0.jar:/Users/jesse/.m2/repository/commons-io/commons-io/2.4/commons-io-2.4.jar:/Users/jesse/.m2/repository/com/google/code/findbugs/jsr305/3.0.0/jsr305-3.0.0.jar:/Users/jesse/.m2/repository/com/jayway/awaitility/awaitility/1.6.5/awaitility-1.6.5.jar:/Users/jesse/.m2/repository/org/hamcrest/hamcrest-library/1.3/hamcrest-library-1.3.jar:/Users/jesse/.m2/repository/cglib/cglib-nodep/3.1/cglib-nodep-3.1.jar" com.intellij.rt.execution.application.AppMain com.intellij.rt.execution.junit.JUnitStarter -ideVersion5 com.boundary.sargon.process.SingleStreamAggregatorTest,testReduce
1
2

java.util.NoSuchElementException: Sequence contains no elements

	at rx.internal.operators.OperatorSingle$ParentSubscriber.onCompleted(OperatorSingle.java:131)
	at rx.internal.operators.OperatorTakeLastOne$ParentSubscriber.onCompleted(OperatorTakeLastOne.java:107)
	at rx.internal.operators.OperatorScan$2.onCompleted(OperatorScan.java:124)
	at rx.Observable$EmptyHolder$1.call(Observable.java:1073)
	at rx.Observable$EmptyHolder$1.call(Observable.java:1070)
	at rx.Observable$2.call(Observable.java:162)
	at rx.Observable$2.call(Observable.java:154)
	at rx.Observable$2.call(Observable.java:162)
	at rx.Observable$2.call(Observable.java:154)
	at rx.Observable$2.call(Observable.java:162)
	at rx.Observable$2.call(Observable.java:154)
	at rx.Observable$2.call(Observable.java:162)
	at rx.Observable$2.call(Observable.java:154)
	at rx.Observable$2.call(Observable.java:162)
	at rx.Observable$2.call(Observable.java:154)
	at rx.Observable.subscribe(Observable.java:8264)
	at rx.Observable.subscribe(Observable.java:8231)
	at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:433)
	at rx.observables.BlockingObservable.first(BlockingObservable.java:160)
	at com.boundary.sargon.process.SingleStreamAggregatorTest.reduce(SingleStreamAggregatorTest.java:128)
	at com.boundary.sargon.process.SingleStreamAggregatorTest.testReduce(SingleStreamAggregatorTest.java:120)
	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:497)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
	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:497)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)