java.lang.LinkageError: loader constraint violation: when resolving field "BROWSER_COMPATIBLE_HOSTNAME_VERIFIER" the class loader (instance of hudson/ClassicPluginStrategy$AntClassLoader2) of the referring class, org/apache/http/nio/conn/ssl/SSLIOSessionStrategy, and the class loader (instance of hudson/ClassicPluginStrategy$AntClassLoader2) for the field's resolved type, org/apache/http/conn/ssl/X509HostnameVerifier, have different Class objects for that type
	at com.atlassian.httpclient.apache.httpcomponents.ApacheAsyncHttpClient.getRegistry(ApacheAsyncHttpClient.java:267)
	at com.atlassian.httpclient.apache.httpcomponents.ApacheAsyncHttpClient.<init>(ApacheAsyncHttpClient.java:178)
	at com.atlassian.httpclient.apache.httpcomponents.ApacheAsyncHttpClient.<init>(ApacheAsyncHttpClient.java:123)
	at com.atlassian.httpclient.apache.httpcomponents.DefaultHttpClientFactory.doCreate(DefaultHttpClientFactory.java:68)
	at com.atlassian.httpclient.apache.httpcomponents.DefaultHttpClientFactory.create(DefaultHttpClientFactory.java:35)
	at com.atlassian.jira.rest.client.internal.async.AsynchronousHttpClientFactory.createClient(AsynchronousHttpClientFactory.java:63)
	at com.atlassian.jira.rest.client.internal.async.AsynchronousJiraRestClientFactory.create(AsynchronousJiraRestClientFactory.java:35)
	at com.atlassian.jira.rest.client.internal.async.AsynchronousJiraRestClientFactory.createWithBasicHttpAuthentication(AsynchronousJiraRestClientFactory.java:42)
	at hudson.plugins.jira.JiraSite.createSession(JiraSite.java:303)
	at hudson.plugins.jira.JiraSite.getSession(JiraSite.java:278)
	at hudson.plugins.jira.JiraMailAddressResolver.findMailAddressFor(JiraMailAddressResolver.java:37)
	at hudson.tasks.MailAddressResolver.resolve(MailAddressResolver.java:122)
	at hudson.tasks.Mailer$UserProperty.getAddress(Mailer.java:614)
	at org.jenkinsci.plugins.p4.changes.P4ChangeEntry.setChange(P4ChangeEntry.java:87)
	at org.jenkinsci.plugins.p4.changes.P4ChangeRef.getChangeEntry(P4ChangeRef.java:20)
	at org.jenkinsci.plugins.p4.tasks.CheckoutTask.getChangesFull(CheckoutTask.java:287)
	at org.jenkinsci.plugins.p4.PerforceScm.calculateChanges(PerforceScm.java:520)
	at org.jenkinsci.plugins.p4.PerforceScm.checkout(PerforceScm.java:482)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:113)
	at org.jenkinsci.plugins.workflow.cps.CpsScmFlowDefinition.create(CpsScmFlowDefinition.java:138)
	at org.jenkinsci.plugins.workflow.cps.CpsScmFlowDefinition.create(CpsScmFlowDefinition.java:64)
	at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:271)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:421)
Finished: FAILURE