org.flowable.common.engine.api.FlowableException: Error while evaluating expression: ${flwRecipients.getRoleGroups(document, 'utl-sop-specialist')}
	at org.flowable.common.engine.impl.el.JuelExpression.getValue(JuelExpression.java:56)
	at org.flowable.engine.impl.bpmn.behavior.UserTaskActivityBehavior.handleAssignments(UserTaskActivityBehavior.java:291)
	at org.flowable.engine.impl.bpmn.behavior.UserTaskActivityBehavior.execute(UserTaskActivityBehavior.java:226)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeActivityBehavior(ContinueProcessOperation.java:264)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeSynchronous(ContinueProcessOperation.java:158)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughFlowNode(ContinueProcessOperation.java:113)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughSequenceFlow(ContinueProcessOperation.java:312)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.run(ContinueProcessOperation.java:79)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:88)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:72)
	at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:56)
	at ru.citeck.ecos.flowable.interceptors.FlowableAuthenticationInterceptor.lambda$execute$0(FlowableAuthenticationInterceptor.java:17)
	at org.alfresco.repo.security.authentication.AuthenticationUtil.runAs(AuthenticationUtil.java:555)
	at org.alfresco.repo.security.authentication.AuthenticationUtil.runAsSystem(AuthenticationUtil.java:589)
	at ru.citeck.ecos.flowable.interceptors.FlowableAuthenticationInterceptor.execute(FlowableAuthenticationInterceptor.java:17)
	at org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:25)
	at org.flowable.common.engine.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)
	at org.flowable.common.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:71)
	at org.flowable.common.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:49)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)
	at org.flowable.common.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:46)
	at org.flowable.common.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
	at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)
	at org.flowable.job.service.impl.asyncexecutor.ExecuteAsyncRunnable.executeJob(ExecuteAsyncRunnable.java:128)
	at org.flowable.job.service.impl.asyncexecutor.ExecuteAsyncRunnable.run(ExecuteAsyncRunnable.java:116)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.flowable.common.engine.impl.javax.el.ELException: java.lang.NullPointerException
	at org.flowable.common.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:518)
	at org.flowable.common.engine.impl.javax.el.CompositeELResolver.invoke(CompositeELResolver.java:400)
	at org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstMethod.eval(AstMethod.java:98)
	at org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstMethod.eval(AstMethod.java:107)
	at org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstEval.eval(AstEval.java:53)
	at org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstNode.getValue(AstNode.java:31)
	at org.flowable.common.engine.impl.de.odysseus.el.TreeValueExpression.getValue(TreeValueExpression.java:122)
	at org.flowable.engine.impl.delegate.invocation.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:34)
	at org.flowable.engine.impl.delegate.invocation.DelegateInvocation.proceed(DelegateInvocation.java:35)
	at org.flowable.engine.impl.delegate.invocation.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:26)
	at org.flowable.engine.impl.el.JuelExpression.resolveGetValueExpression(JuelExpression.java:44)
	at org.flowable.common.engine.impl.el.JuelExpression.getValue(JuelExpression.java:48)
	... 28 more
Caused by: java.lang.NullPointerException
	at ru.citeck.ecos.flowable.services.FlowableRecipientsServiceJS.getRoleGroups(FlowableRecipientsServiceJS.java:31)
	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.flowable.common.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:516)
	... 39 more