When i start process byKey
ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(“weather” , variables);
Exception occur
jjava.lang.NullPointerException: null
at org.flowable.engine.impl.bpmn.webservice.Operation.sendMessage(Operation.java:54)
at org.flowable.engine.impl.bpmn.behavior.WebServiceActivityBehavior.execute(WebServiceActivityBehavior.java:136)
at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeActivityBehavior(ContinueProcessOperation.java:256)
at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeSynchronous(ContinueProcessOperation.java:154)
at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughFlowNode(ContinueProcessOperation.java:111)
at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughSequenceFlow(ContinueProcessOperation.java:303)
at org.flowable.engine.impl.agenda.ContinueProcessOperation.run(ContinueProcessOperation.java:77)
at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:88)
at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:72)
at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:56)
at org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:25)
at org.flowable.engine.common.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)
at org.flowable.engine.common.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:72)
at org.flowable.engine.common.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:35)
at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)
at org.flowable.engine.impl.RuntimeServiceImpl.startProcessInstanceByKey(RuntimeServiceImpl.java:103)