なぜpom.xmlにJRJC依存関係を含めるとhttp例外が発生するのですか？

Question

私はjiraの問題がJavaコードから自動的に作成されるシナリオを扱っています。設定チュートリアルはhttps://ecosystem.atlassian.net/wiki/display/JRJC/Tutorialです。 pom.xmlに追加 依存

<dependency> 
      <groupId>com.atlassian.jira</groupId> 
      <artifactId>jira-rest-java-client-core</artifactId> 
      <version>2.0.0-m19</version> 
     </dependency> 

例外

Jan 05, 2017 8:39:32 PM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Allocate exception for servlet appServlet 
java.lang.NoSuchMethodError: org.apache.http.nio.protocol.HttpAsyncRequester.<init>(Lorg/apache/http/protocol/HttpProcessor;)V 
    at com.couchbase.client.ViewConnection.<init>(ViewConnection.java:163) 
    at com.couchbase.client.CouchbaseConnectionFactory.createViewConnection(CouchbaseConnectionFactory.java:250) 
    at com.couchbase.client.CouchbaseClient.<init>(CouchbaseClient.java:260) 
    at com.couchbase.client.CouchbaseClient.<init>(CouchbaseClient.java:188) 
    at com.cache.impl.CouchBaseCacheManager.<init>(CouchBaseCacheManager.java:34) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147) 
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:122) 
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:267) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1139) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) 
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663) 
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629) 
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677) 
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548) 
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489) 
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) 
    at javax.servlet.GenericServlet.init(GenericServlet.java:158) 
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1227) 
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1140) 
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:817) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:135) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1100) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:687) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
    at java.lang.Thread.run(Thread.java:745) 

Answer 1

は通常、例外java.lang.NoSuchMethodErrorは、Mavenの依存関係の間にするときそこにいくつかの競合がスローされます。クラスorg.apache.http.nio.protocol.HttpAsyncRequesterはApache HttpCore NIOに存在します。

競合を避けるために、明示的にこの依存関係を追加します。

<dependency> 
    <groupId>org.apache.httpcomponents</groupId> 
    <artifactId>httpcore-nio</artifactId> 
    <version>4.4.5</version> 
</dependency>