stashpullrequestbuilder.stashpullrequestbuilder.StashBuildTrigger.run() failed for hudson.model.FreeStyleProject@7b9260e9[xdr-ui-adapter-build-pull-request]
java.lang.ClassNotFoundException: org.apache.commons.httpclient.contrib.ssl.EasySSLProtocolSocketFactory
	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
Caused: java.lang.NoClassDefFoundError: org/apache/commons/httpclient/contrib/ssl/EasySSLProtocolSocketFactory
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
	at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:858)
	at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at stashpullrequestbuilder.stashpullrequestbuilder.stash.StashApiClient.<init>(StashApiClient.java:75)
	at stashpullrequestbuilder.stashpullrequestbuilder.StashRepository.init(StashRepository.java:67)
	at stashpullrequestbuilder.stashpullrequestbuilder.StashPullRequestsBuilder.run(StashPullRequestsBuilder.java:31)
	at stashpullrequestbuilder.stashpullrequestbuilder.StashBuildTrigger.run(StashBuildTrigger.java:299)
	at hudson.triggers.Trigger.checkTriggers(Trigger.java:278)
	at hudson.triggers.Trigger$Cron.doRun(Trigger.java:226)
	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:72)
	at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:58)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)