"migrationPlan" : {
    "sourceProcessDefinitionId" : "my_process:12:9f7a3e29-43cf-11e8-8c5e-0a64f31fee82",
    "targetProcessDefinitionId" : "my_process:16:fbd5cf95-5f3c-11e8-9d68-0a102dfb6fb2",
    "instructions" : [ {
      "sourceActivityIds" : [ "step1#multiInstanceBody" ],
      "targetActivityIds" : [ "step1#multiInstanceBody" ],
      "updateEventTrigger" : false
    }, {
      "sourceActivityIds" : [ "step2" ],
      "targetActivityIds" : [ "step2" ],
      "updateEventTrigger" : false
    } ]
  },
  "processInstanceIds" : [ "bb655321-52b8-11e8-891d-0a2a93da1d5e" ],
  "skipCustomListeners" : true,
  "skipIoMappings" : false
}


 javax.servlet.ServletException: java.lang.NullPointerException
  at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:489)
  at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
  at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
  at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
  at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
  at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
  at org.camunda.bpm.webapp.impl.security.filter.SecurityFilter.doFilterSecure(SecurityFilter.java:67)
  at org.camunda.bpm.webapp.impl.security.filter.SecurityFilter.doFilter(SecurityFilter.java:51)
  at org.camunda.bpm.spring.boot.starter.webapp.filter.LazyDelegateFilter.doFilter(LazyDelegateFilter.java:44)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.camunda.bpm.webapp.impl.security.auth.AuthenticationFilter$1.execute(AuthenticationFilter.java:58)
  at org.camunda.bpm.webapp.impl.security.auth.AuthenticationFilter$1.execute(AuthenticationFilter.java:56)
  at org.camunda.bpm.webapp.impl.security.SecurityActions.runWithAuthentications(SecurityActions.java:40)
  at org.camunda.bpm.webapp.impl.security.auth.AuthenticationFilter.doFilter(AuthenticationFilter.java:56)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.cloud.sleuth.instrument.web.TraceFilter.doFilter(TraceFilter.java:169)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at com.bonial.boot.profile.RequestProfileFilter.doFilterInternal(RequestProfileFilter.java:67)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at com.bonial.commons.servlet.LoggingSetupFilter.doFilter(LoggingSetupFilter.java:79)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
  at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
  at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64)
  at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
  at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
  at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
  at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
  at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
  at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
  at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
  at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
  at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
  at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
  at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
  at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
  at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
  at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
  at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
  at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
  at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
  at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
  at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
  at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
  at io.undertow.server.Connectors.executeRootHandler(Connectors.java:332)
  at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:812)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException: null
  at org.camunda.bpm.engine.impl.ActivityExecutionTreeMapping.getExecution(ActivityExecutionTreeMapping.java:70)
  at org.camunda.bpm.engine.impl.migration.instance.parser.ActivityInstanceHandler.handle(ActivityInstanceHandler.java:44)
  at org.camunda.bpm.engine.impl.migration.instance.parser.ActivityInstanceHandler.handle(ActivityInstanceHandler.java:35)
  at org.camunda.bpm.engine.impl.migration.instance.parser.MigratingInstanceParser$1.visit(MigratingInstanceParser.java:107)
  at org.camunda.bpm.engine.impl.migration.instance.parser.MigratingInstanceParser$1.visit(MigratingInstanceParser.java:104)
  at org.camunda.bpm.engine.impl.tree.ReferenceWalker.walkWhile(ReferenceWalker.java:71)
  at org.camunda.bpm.engine.impl.tree.ReferenceWalker.walkWhile(ReferenceWalker.java:61)
  at org.camunda.bpm.engine.impl.migration.instance.parser.MigratingInstanceParser.parse(MigratingInstanceParser.java:111)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd.migrateProcessInstance(MigrateProcessInstanceCmd.java:134)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd$1.call(MigrateProcessInstanceCmd.java:111)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd$1.call(MigrateProcessInstanceCmd.java:106)
  at org.camunda.bpm.engine.impl.interceptor.CommandContext.runWithoutAuthorization(CommandContext.java:473)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd.execute(MigrateProcessInstanceCmd.java:106)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd.execute(MigrateProcessInstanceCmd.java:72)
  at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
  at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:104)
  at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:42)
  at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
  at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)
  at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
  at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
  at org.camunda.bpm.engine.impl.migration.MigrationPlanExecutionBuilderImpl.execute(MigrationPlanExecutionBuilderImpl.java:97)
  at org.camunda.bpm.engine.impl.migration.MigrationPlanExecutionBuilderImpl.execute(MigrationPlanExecutionBuilderImpl.java:93)
  at org.camunda.bpm.engine.rest.impl.MigrationRestServiceImpl.executeMigrationPlan(MigrationRestServiceImpl.java:80)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
  at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
  at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
  at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:143)
  at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
  at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
  at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
  at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
  at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
  at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
  at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
  at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
  at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
  at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
  at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
  at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
  at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
  at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
  ... 83 common frames omitted


  javax.servlet.ServletException: java.lang.NullPointerException
  at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:489)
  at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
  at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
  at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
  at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
  at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
  at org.camunda.bpm.webapp.impl.security.filter.SecurityFilter.doFilterSecure(SecurityFilter.java:67)
  at org.camunda.bpm.webapp.impl.security.filter.SecurityFilter.doFilter(SecurityFilter.java:51)
  at org.camunda.bpm.spring.boot.starter.webapp.filter.LazyDelegateFilter.doFilter(LazyDelegateFilter.java:44)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.camunda.bpm.webapp.impl.security.auth.AuthenticationFilter$1.execute(AuthenticationFilter.java:58)
  at org.camunda.bpm.webapp.impl.security.auth.AuthenticationFilter$1.execute(AuthenticationFilter.java:56)
  at org.camunda.bpm.webapp.impl.security.SecurityActions.runWithAuthentications(SecurityActions.java:40)
  at org.camunda.bpm.webapp.impl.security.auth.AuthenticationFilter.doFilter(AuthenticationFilter.java:56)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.cloud.sleuth.instrument.web.TraceFilter.doFilter(TraceFilter.java:169)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at com.bonial.boot.profile.RequestProfileFilter.doFilterInternal(RequestProfileFilter.java:67)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106)
  at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at com.bonial.commons.servlet.LoggingSetupFilter.doFilter(LoggingSetupFilter.java:79)
  at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
  at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
  at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
  at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
  at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64)
  at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
  at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
  at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
  at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
  at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
  at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
  at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
  at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
  at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
  at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
  at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
  at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
  at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
  at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
  at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
  at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
  at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
  at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
  at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
  at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
  at io.undertow.server.Connectors.executeRootHandler(Connectors.java:332)
  at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:812)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException: null
  at org.camunda.bpm.engine.impl.ActivityExecutionTreeMapping.getExecution(ActivityExecutionTreeMapping.java:70)
  at org.camunda.bpm.engine.impl.migration.instance.parser.ActivityInstanceHandler.handle(ActivityInstanceHandler.java:44)
  at org.camunda.bpm.engine.impl.migration.instance.parser.ActivityInstanceHandler.handle(ActivityInstanceHandler.java:35)
  at org.camunda.bpm.engine.impl.migration.instance.parser.MigratingInstanceParser$1.visit(MigratingInstanceParser.java:107)
  at org.camunda.bpm.engine.impl.migration.instance.parser.MigratingInstanceParser$1.visit(MigratingInstanceParser.java:104)
  at org.camunda.bpm.engine.impl.tree.ReferenceWalker.walkWhile(ReferenceWalker.java:71)
  at org.camunda.bpm.engine.impl.tree.ReferenceWalker.walkWhile(ReferenceWalker.java:61)
  at org.camunda.bpm.engine.impl.migration.instance.parser.MigratingInstanceParser.parse(MigratingInstanceParser.java:111)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd.migrateProcessInstance(MigrateProcessInstanceCmd.java:134)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd$1.call(MigrateProcessInstanceCmd.java:111)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd$1.call(MigrateProcessInstanceCmd.java:106)
  at org.camunda.bpm.engine.impl.interceptor.CommandContext.runWithoutAuthorization(CommandContext.java:473)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd.execute(MigrateProcessInstanceCmd.java:106)
  at org.camunda.bpm.engine.impl.migration.MigrateProcessInstanceCmd.execute(MigrateProcessInstanceCmd.java:72)
  at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
  at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:104)
  at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:42)
  at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
  at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)
  at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
  at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
  at org.camunda.bpm.engine.impl.migration.MigrationPlanExecutionBuilderImpl.execute(MigrationPlanExecutionBuilderImpl.java:97)
  at org.camunda.bpm.engine.impl.migration.MigrationPlanExecutionBuilderImpl.execute(MigrationPlanExecutionBuilderImpl.java:93)
  at org.camunda.bpm.engine.rest.impl.MigrationRestServiceImpl.executeMigrationPlan(MigrationRestServiceImpl.java:80)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
  at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
  at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
  at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:143)
  at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
  at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
  at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
  at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
  at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
  at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
  at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
  at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
  at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
  at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
  at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
  at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
  at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
  at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
  ... 83 common frames omitted