JIRA plugin is not work after upgrading to 9.0. The error is below:

java.lang.NoClassDefFoundError: org/apache/http/impl/nio/reactor/IOReactorConfig
     at com.atlassian.httpclient.apache.httpcomponents.DefaultHttpClient.createAsyncClient(DefaultHttpClient.java:196)
     at com.atlassian.httpclient.apache.httpcomponents.DefaultHttpClient.<init>(DefaultHttpClient.java:118)
     at com.atlassian.httpclient.apache.httpcomponents.DefaultHttpClient.<init>(DefaultHttpClient.java:95)
     at com.atlassian.jira.rest.client.internal.async.AsynchronousHttpClientFactory.createClient(AsynchronousHttpClientFactory.java:57)
     at com.atlassian.jira.rest.client.internal.async.AsynchronousJiraRestClientFactory.create(AsynchronousJiraRestClientFactory.java:36)
     at com.atlassian.jira.rest.client.internal.async.AsynchronousJiraRestClientFactory.createWithBasicHttpAuthentication(AsynchronousJiraRestClientFactory.java:42)
     at com.pmease.quickbuild.plugin.tracker.jira.client.RestJiraClient.<init>(RestJiraClient.java:97)
     at com.pmease.quickbuild.plugin.tracker.jira.client.JiraClientFactory.newInstance(JiraClientFactory.java:25)
     at com.pmease.quickbuild.plugin.tracker.jira.JiraAuthenticator.authenticate(JiraAuthenticator.java:25)
     at com.pmease.quickbuild.plugin.tracker.jira.JiraAuthenticator$$EnhancerByCGLIB$$be210860.CGLIB$authenticate$0(<generated>)
     at com.pmease.quickbuild.plugin.tracker.jira.JiraAuthenticator$$EnhancerByCGLIB$$be210860$$FastClassByCGLIB$$9902132b.invoke(<generated>)
     at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
     at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:261)
     at com.pmease.quickbuild.plugin.tracker.jira.JiraAuthenticator$$EnhancerByCGLIB$$be210860.authenticate(<generated>)
     at com.pmease.quickbuild.security.SecurityHelper.authenticate(SecurityHelper.java:529)
     at com.pmease.quickbuild.web.page.SignInPage$2.onSubmit(SignInPage.java:86)
     at org.apache.wicket.markup.html.form.Form$10.component(Form.java:1157)