Problem When Executing a filter in restapi

amir133 · August 14, 2022, 5:57pm

Hi,
when I set filter owner like this,

rest api crashed when I Execute that filter

can some one help me?

2022-08-14 22:18:29.826 ERROR 6268 --- [nio-8100-exec-7] org.camunda.bpm.engine.context           : ENGINE-16004 Exception while closing command context: Unable to invoke method 'taskOwner' on class 'org.camunda.bpm.engine.impl.TaskQueryImpl'

org.camunda.bpm.engine.ProcessEngineException: Unable to invoke method 'taskOwner' on class 'org.camunda.bpm.engine.impl.TaskQueryImpl'
        at org.camunda.bpm.engine.impl.AbstractQuery.evaluateExpressions(AbstractQuery.java:292) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.AbstractQuery.evaluateExpressionsAndExecuteList(AbstractQuery.java:218) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.AbstractQuery.executeResult(AbstractQuery.java:168) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.AbstractQuery.listPage(AbstractQuery.java:150) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.cmd.ExecuteFilterListPageCmd.execute(ExecuteFilterListPageCmd.java:51) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.cmd.ExecuteFilterListPageCmd.execute(ExecuteFilterListPageCmd.java:29) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:28) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:110) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:72) ~[camunda-engine-spring-7.17.2-ee.jar!/:7.17.2-ee]
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.3.20.jar!/:5.3.20]
        at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:70) ~[camunda-engine-spring-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:70) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.interceptor.CommandCounterInterceptor.execute(CommandCounterInterceptor.java:35) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.FilterServiceImpl.listPage(FilterServiceImpl.java:87) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.executeFilterList(FilterResourceImpl.java:275) ~[camunda-engine-rest-jaxrs2-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.queryJsonList(FilterResourceImpl.java:239) ~[camunda-engine-rest-jaxrs2-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.executeJsonList(FilterResourceImpl.java:222) ~[camunda-engine-rest-jaxrs2-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.executeList(FilterResourceImpl.java:212) ~[camunda-engine-rest-jaxrs2-7.17.2-ee.jar!/:7.17.2-ee]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ObjectOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:192) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:475) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:397) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:255) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248) ~[jersey-common-2.34.jar!/:na]
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244) ~[jersey-common-2.34.jar!/:na]
        at org.glassfish.jersey.internal.Errors.process(Errors.java:292) ~[jersey-common-2.34.jar!/:na]
        at org.glassfish.jersey.internal.Errors.process(Errors.java:274) ~[jersey-common-2.34.jar!/:na]
        at org.glassfish.jersey.internal.Errors.process(Errors.java:244) ~[jersey-common-2.34.jar!/:na]
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265) ~[jersey-common-2.34.jar!/:na]
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:680) ~[jersey-server-2.34.jar!/:na]
        at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394) ~[jersey-container-servlet-core-2.34.jar!/:na]
        at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346) ~[jersey-container-servlet-core-2.34.jar!/:na]
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:366) ~[jersey-container-servlet-core-2.34.jar!/:na]
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:319) ~[jersey-container-servlet-core-2.34.jar!/:na]
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205) ~[jersey-container-servlet-core-2.34.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.camunda.bpm.engine.rest.filter.CacheControlFilter.doFilter(CacheControlFilter.java:45) ~[camunda-engine-rest-jaxrs2-7.17.2-ee.jar!/:7.17.2-ee]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.camunda.bpm.engine.rest.filter.EmptyBodyFilter.doFilter(EmptyBodyFilter.java:101) ~[camunda-engine-rest-jaxrs2-7.17.2-ee.jar!/:7.17.2-ee]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:357) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:176) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.20.jar!/:5.3.20]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar!/:5.3.20]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.20.jar!/:5.3.20]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar!/:5.3.20]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.20.jar!/:5.3.20]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar!/:5.3.20]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.63.jar!/:na]
        at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: java.lang.reflect.InvocationTargetException: null
        at jdk.internal.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
        at org.camunda.bpm.engine.impl.AbstractQuery.evaluateExpressions(AbstractQuery.java:290) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        ... 87 common frames omitted
Caused by: org.camunda.bpm.engine.exception.NullValueException: Owner is null
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na]
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[na:na]
        at org.camunda.bpm.engine.impl.util.EnsureUtil.generateException(EnsureUtil.java:398) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull(EnsureUtil.java:55) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull(EnsureUtil.java:50) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull(EnsureUtil.java:42) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        at org.camunda.bpm.engine.impl.TaskQueryImpl.taskOwner(TaskQueryImpl.java:305) ~[camunda-engine-7.17.2-ee.jar!/:7.17.2-ee]
        ... 91 common frames omitted

2022-08-14 22:18:29.842  WARN 6268 --- [nio-8100-exec-7] org.camunda.bpm.engine.rest.exception    : ENGINE-REST-HTTP500 org.camunda.bpm.engine.ProcessEngineException: Unable to invoke method 'taskOwner' on class 'org.camunda.bpm.engine.impl.TaskQueryImpl'
        at org.camunda.bpm.engine.impl.AbstractQuery.evaluateExpressions(AbstractQuery.java:292)
        at org.camunda.bpm.engine.impl.AbstractQuery.evaluateExpressionsAndExecuteList(AbstractQuery.java:218)
        at org.camunda.bpm.engine.impl.AbstractQuery.executeResult(AbstractQuery.java:168)
        at org.camunda.bpm.engine.impl.AbstractQuery.listPage(AbstractQuery.java:150)
        at org.camunda.bpm.engine.impl.cmd.ExecuteFilterListPageCmd.execute(ExecuteFilterListPageCmd.java:51)
        at org.camunda.bpm.engine.impl.cmd.ExecuteFilterListPageCmd.execute(ExecuteFilterListPageCmd.java:29)
        at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:28)
        at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:110)
        at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:72)
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
        at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:70)
        at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:70)
        at org.camunda.bpm.engine.impl.interceptor.CommandCounterInterceptor.execute(CommandCounterInterceptor.java:35)
        at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
        at org.camunda.bpm.engine.impl.FilterServiceImpl.listPage(FilterServiceImpl.java:87)
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.executeFilterList(FilterResourceImpl.java:275)
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.queryJsonList(FilterResourceImpl.java:239)
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.executeJsonList(FilterResourceImpl.java:222)
        at org.camunda.bpm.engine.rest.sub.runtime.impl.FilterResourceImpl.executeList(FilterResourceImpl.java:212)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ObjectOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:192)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:475)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:397)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)
        at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:255)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234)
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:680)
        at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394)
        at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:366)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:319)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.camunda.bpm.engine.rest.filter.CacheControlFilter.doFilter(CacheControlFilter.java:45)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.camunda.bpm.engine.rest.filter.EmptyBodyFilter.doFilter(EmptyBodyFilter.java:101)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:357)
        at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:176)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
        at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.reflect.InvocationTargetException
        at jdk.internal.reflect.GeneratedMethodAccessor216.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.camunda.bpm.engine.impl.AbstractQuery.evaluateExpressions(AbstractQuery.java:290)
        ... 87 more
Caused by: org.camunda.bpm.engine.exception.NullValueException: Owner is null
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at org.camunda.bpm.engine.impl.util.EnsureUtil.generateException(EnsureUtil.java:398)
        at org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull(EnsureUtil.java:55)
        at org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull(EnsureUtil.java:50)
        at org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull(EnsureUtil.java:42)
        at org.camunda.bpm.engine.impl.TaskQueryImpl.taskOwner(TaskQueryImpl.java:305)
        ... 91 more

hassang · August 15, 2022, 2:38am

Hi @amir133,

Built-in expression currentUser() returns the userId of the currently authenticated user and in order for authentication to be set, authorization needs to be enabled for REST API.

amir133 · August 15, 2022, 5:40am

Thanks @hassang
How to enable authorization for REST API ?
I found some instruction in Configure Authentication | docs.camunda.org.
But I don’t know how to add a servlet filter.
can you guide me?
thanks

hassang · August 15, 2022, 9:26am

Hi @amir133,

It depends on the distribution you have.
Please let us know what distribution you have? Is it tomcat? Camunda Run?

amir133 · August 15, 2022, 11:04am

it’s default package, I think Camunda Run.

hassang · August 15, 2022, 5:52pm

Hi @amir133,

So you can enable authentication for REST API by editing the configuration file default.yml as in below docs. (Notice: default.yml is the default configuration file)

system · January 31, 2024, 10:24am