i got error ,
come
org.jbpm.workflow.instance.WorkflowRuntimeException: [com.sample.bpmn:1 - Email:2] -- Unable to send email
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:132)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:279)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:238)
at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126)
at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)
at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:194)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:309)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:170)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:140)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:132)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1093)
at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:315)
at ProcessMain.main(ProcessMain.java:38)
Caused by: java.lang.RuntimeException: Unable to send email
at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:65)
at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:37)
at org.jbpm.process.workitem.email.EmailWorkItemHandler.executeWorkItem(EmailWorkItemHandler.java:68)
at org.drools.process.instance.impl.DefaultWorkItemManager.internalExecuteWorkItem(DefaultWorkItemManager.java:70)
at org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:107)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126)
... 14 more
Caused by: java.lang.RuntimeException: Connection failure
at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:59)
... 19 more
Caused by: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.0 Must issue a STARTTLS command first. o5sm12992941pay.5
at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1388)
at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:959)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:583)
at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:57)
... 19 more