External Task Polling Failed with EngineError

Rockdale · June 3, 2021, 1:44pm

Hi, All:

Keep getting the following error when trying to run my external task worker. Very new to Camunda from the log seems the error occurred when talk to database - but not sure what I missed. Followed the instruction to install and run the engine. And everything else seems working fine. Any help/hints are appreciated. Thanks in advance.

✓ subscribed to topic t-ext-task-test
polling failed with EngineError: Response code 500 (Internal Server Error); Error: {“type”:“ProcessEngineException”,“message”:“An exception occurred in the persistence layer. Please check the server logs for a detailed message and the entire exception stack trace.”}; Type: undefined

Tried with community version and enterprise version, same error. Everything else works fine, model deployment, REST API calling …etc

This is the code in my worker.js

const { Client, logger } = require(“camunda-external-task-client-js”);

const config = { baseUrl: “http://localhost:8080/engine-rest”, use: logger };
const client = new Client(config);

console.log(“before subscribe to topic”);
client.subscribe(“t-ext-task-test”, async function({ task, taskService }) {
console.log(“after subscribe to topic”);
await taskService.handleFailure(task, {
errorMessage: “some failure message”,
errorDetails: “some details”,
retries: 1,
retryTimeout: 1000
});

const variables = new Variables().set(‘date’, new Date());
await taskService.handleBpmnError(task, “BPMNError_Code”, “Error message”, variables);

const processVariables = new Variables();
processVariables.set(“winning”, true);
await taskService.complete(task, processVariables);

Rockdale · June 3, 2021, 1:46pm

And following are the logs from the engine (First part)

2021-06-03 09:32:27.170 INFO 28612 — [main] org.camunda.bpm.run.CamundaBpmRun : Starting CamundaBpmRun v7.15.1-ee using Java 16.0.1 on ABC-02 with PID 28612 (C:\workspace\Camunda\camunda-enterprise\camunda-bpm-run-ee-7.15.1-ee\internal\camunda-bpm-run-core.jar started by ABC in C:\workspace\Camunda\camunda-enterprise\camunda-bpm-run-ee-7.15.1-ee)
2021-06-03 09:32:27.176 INFO 28612 — [main] org.camunda.bpm.run.CamundaBpmRun : No active profile set, falling back to default profiles: default
2021-06-03 09:32:29.593 INFO 28612 — [main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2021-06-03 09:32:29.614 INFO 28612 — [main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-06-03 09:32:29.615 INFO 28612 — [main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.43]
2021-06-03 09:32:29.755 INFO 28612 — [main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-06-03 09:32:29.756 INFO 28612 — [main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2488 ms
2021-06-03 09:32:29.828 INFO 28612 — [main] .c.b.s.b.s.r.CamundaJerseyResourceConfig : Configuring camunda rest api.
2021-06-03 09:32:29.890 INFO 28612 — [main] .c.b.s.b.s.r.CamundaJerseyResourceConfig : Finished configuring camunda rest api.
2021-06-03 09:32:30.591 INFO 28612 — [main] org.camunda.bpm.spring.boot : STARTER-SB040 Setting up jobExecutor with corePoolSize=3, maxPoolSize:10
2021-06-03 09:32:30.595 INFO 28612 — [main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService ‘camundaTaskExecutor’
2021-06-03 09:32:30.725 INFO 28612 — [main] org.camunda.bpm.engine.cfg : ENGINE-12003 Plugin ‘CompositeProcessEnginePlugin[genericPropertiesConfiguration, camundaDeploymentConfiguration, camundaProcessEngineConfiguration, camundaDatasourceConfiguration, camundaJobConfiguration, camundaHistoryConfiguration, camundaMetricsConfiguration, camundaAuthorizationConfiguration, CreateAdminUserConfiguration[adminUser=AdminUserProperty[id=demo, firstName=Demo, lastName=Demo, email=demo@localhost, password=******]], failedJobConfiguration, enterLicenseKeyConfiguration, eventPublisherPlugin, SpringBootSpinProcessEnginePlugin]’ activated on process engine ‘default’
2021-06-03 09:32:30.733 INFO 28612 — [main] org.camunda.bpm.spring.boot : STARTER-SB021 Auto-Deploying resources: []
2021-06-03 09:32:30.743 INFO 28612 — [main] o.c.b.s.b.s.event.EventPublisherPlugin : EVENTING-001: Initialized Camunda Spring Boot Eventing Engine Plugin.
2021-06-03 09:32:30.744 INFO 28612 — [main] o.c.b.s.b.s.event.EventPublisherPlugin : EVENTING-003: Task events will be published as Spring Events.
2021-06-03 09:32:30.744 INFO 28612 — [main] o.c.b.s.b.s.event.EventPublisherPlugin : EVENTING-005: Execution events will be published as Spring Events.
2021-06-03 09:32:30.753 INFO 28612 — [main] o.c.b.s.b.s.event.EventPublisherPlugin : EVENTING-007: History events will be published as Spring events.
2021-06-03 09:32:30.769 INFO 28612 — [main] org.camunda.spin : SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormatProvider[name = application/json]
2021-06-03 09:32:31.087 INFO 28612 — [main] org.camunda.spin : SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatProvider[name = application/xml]
2021-06-03 09:32:31.103 INFO 28612 — [main] org.camunda.spin : SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat[name = application/xml]
2021-06-03 09:32:31.103 INFO 28612 — [main] org.camunda.spin : SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormat[name = application/json]
2021-06-03 09:32:31.395 INFO 28612 — [main] org.camunda.bpm.dmn.feel.scala : FEEL/SCALA-01001 Spin value mapper detected
2021-06-03 09:32:31.485 INFO 28612 — [main] org.camunda.feel.FeelEngine : Engine created. [value-mapper: CompositeValueMapper(List(org.camunda.feel.impl.JavaValueMapper@3122b117, org.camunda.spin.plugin.impl.feel.integration.SpinValueMapper@534ca02b)), function-provider: org.camunda.bpm.dmn.feel.impl.scala.function.CustomFunctionTransformer@a619c2, clock: SystemClock, configuration: Configuration(false)]
2021-06-03 09:32:31.606 INFO 28612 — [main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting…
2021-06-03 09:32:31.956 INFO 28612 — [main] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Driver does not support get/set network timeout for connections. (Receiver class org.h2.jdbc.JdbcConnection does not define or inherit an implementation of the resolved method ‘abstract int getNetworkTimeout()’ of interface java.sql.Connection.)
2021-06-03 09:32:31.969 INFO 28612 — [main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2021-06-03 09:32:34.999 INFO 28612 — [main] org.camunda.bpm.connect : CNCT-01004 Discovered provider for connector id ‘http-connector’ and class ‘org.camunda.connect.httpclient.impl.HttpConnectorImpl’: ‘org.camunda.connect.httpclient.impl.HttpConnectorProviderImpl’
2021-06-03 09:32:35.006 INFO 28612 — [main] org.camunda.bpm.connect : CNCT-01004 Discovered provider for connector id ‘soap-http-connector’ and class ‘org.camunda.connect.httpclient.soap.impl.SoapHttpConnectorImpl’: ‘org.camunda.connect.httpclient.soap.impl.SoapHttpConnectorProviderImpl’
2021-06-03 09:32:35.229 INFO 28612 — [main] org.camunda.bpm.engine : ENGINE-00001 Process Engine default created.
2021-06-03 09:32:35.293 INFO 28612 — [main] org.camunda.bpm.spring.boot : STARTER-SB011 skip creating initial Admin User, user does exist: UserEntity[id=demo, revision=1, firstName=Demo, lastName=Demo, email=demo@localhost, password={SHA-512}RmH8OrSOTwIy1+Xa4HoQPNLD0abI3Ium0LeSeERMKm5XyaAVeFK4ScAPI4yOu5jlrKpvcdKi+JWQpLQxnNbGkg==, salt=5oOnOaqRkVJ2vJfBZFIzhA==, lockExpirationTime=null, attempts=0]
2021-06-03 09:32:35.801 INFO 28612 — [main] o.c.b.s.b.s.w.f.LazyInitRegistration : lazy initialized org.camunda.bpm.spring.boot.starter.webapp.filter.LazyProcessEnginesFilter@2ce86164
2021-06-03 09:32:35.918 INFO 28612 — [main] o.c.b.s.b.s.w.f.LazyInitRegistration : lazy initialized org.camunda.bpm.spring.boot.starter.webapp.filter.LazySecurityFilter@6a62689d
2021-06-03 09:32:36.083 INFO 28612 — [main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ‘’
2021-06-03 09:32:36.105 INFO 28612 — [main] org.camunda.bpm.run.CamundaBpmRun : Started CamundaBpmRun in 10.08 seconds (JVM running for 11.14)
2021-06-03 09:32:36.110 INFO 28612 — [main] org.camunda.bpm.engine.jobexecutor : ENGINE-14014 Starting up the JobExecutor[org.camunda.bpm.engine.spring.components.jobexecutor.SpringJobExecutor].
2021-06-03 09:32:36.113 INFO 28612 — [JobExecutor[org.camunda.bpm.engine.spring.components.jobexecutor.SpringJobExecutor]] org.camunda.bpm.engine.jobexecutor : ENGINE-14018 JobExecutor[org.camunda.bpm.engine.spring.components.jobexecutor.SpringJobExecutor] starting to acquire jobs
2021-06-03 09:32:44.697 WARN 28612 — [http-nio-8080-exec-1] o.g.jersey.server.wadl.WadlFeature : JAXBContext implementation could not be found. WADL feature is disabled.
2021-06-03 09:32:45.402 ERROR 28612 — [http-nio-8080-exec-1] org.camunda.bpm.engine.context : ENGINE-16004 Exception while closing command context: An exception occurred in the persistence layer. Please check the server logs for a detailed message and the entire exception stack trace.

org.camunda.bpm.engine.ProcessEngineException: An exception occurred in the persistence layer. Please check the server logs for a detailed message and the entire exception stack trace.
at org.camunda.bpm.engine.impl.util.ExceptionUtil.wrapPersistenceException(ExceptionUtil.java:263) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.util.ExceptionUtil.doWithExceptionWrapper(ExceptionUtil.java:257) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.executeSelectList(DbSqlSession.java:111) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.selectList(DbSqlSession.java:103) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.selectListWithRawParameter(DbEntityManager.java:182) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.selectList(DbEntityManager.java:174) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.persistence.entity.ExternalTaskManager.selectExternalTasksForTopics(ExternalTaskManager.java:95) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.cmd.FetchExternalTasksCmd.execute(FetchExternalTasksCmd.java:76) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.cmd.FetchExternalTasksCmd.execute(FetchExternalTasksCmd.java:46) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:28) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:110) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:72) ~[camunda-engine-spring-7.15.1-ee.jar!/:7.15.1-ee]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.3.4.jar!/:5.3.4]
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:70) ~[camunda-engine-spring-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:70) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.interceptor.CommandCounterInterceptor.execute(CommandCounterInterceptor.java:35) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.externaltask.ExternalTaskQueryTopicBuilderImpl.execute(ExternalTaskQueryTopicBuilderImpl.java:60) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.rest.impl.FetchAndLockHandlerImpl.executeFetchAndLock(FetchAndLockHandlerImpl.java:268) ~[camunda-engine-rest-jaxrs2-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.rest.impl.FetchAndLockHandlerImpl.tryFetchAndLock(FetchAndLockHandlerImpl.java:251) ~[camunda-engine-rest-jaxrs2-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.rest.impl.FetchAndLockHandlerImpl.addPendingRequest(FetchAndLockHandlerImpl.java:316) ~[camunda-engine-rest-jaxrs2-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.rest.impl.FetchAndLockRestServiceImpl.fetchAndLock(FetchAndLockRestServiceImpl.java:38) ~[camunda-engine-rest-jaxrs2-7.15.1-ee.jar!/:7.15.1-ee]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[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:567) ~[na:na]
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:159) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:469) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:391) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:80) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:255) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248) ~[jersey-common-2.32.jar!/:na]
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244) ~[jersey-common-2.32.jar!/:na]
at org.glassfish.jersey.internal.Errors.process(Errors.java:292) ~[jersey-common-2.32.jar!/:na]
at org.glassfish.jersey.internal.Errors.process(Errors.java:274) ~[jersey-common-2.32.jar!/:na]
at org.glassfish.jersey.internal.Errors.process(Errors.java:244) ~[jersey-common-2.32.jar!/:na]
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265) ~[jersey-common-2.32.jar!/:na]
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:680) ~[jersey-server-2.32.jar!/:na]
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394) ~[jersey-container-servlet-core-2.32.jar!/:na]
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346) ~[jersey-container-servlet-core-2.32.jar!/:na]
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:366) ~[jersey-container-servlet-core-2.32.jar!/:na]
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:319) ~[jersey-container-servlet-core-2.32.jar!/:na]
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205) ~[jersey-container-servlet-core-2.32.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.camunda.bpm.engine.rest.filter.CacheControlFilter.doFilter(CacheControlFilter.java:45) ~[camunda-engine-rest-jaxrs2-7.15.1-ee.jar!/:7.15.1-ee]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.camunda.bpm.engine.rest.filter.EmptyBodyFilter.doFilter(EmptyBodyFilter.java:99) ~[camunda-engine-rest-jaxrs2-7.15.1-ee.jar!/:7.15.1-ee]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:352) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:171) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.4.jar!/:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar!/:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.4.jar!/:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar!/:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.4.jar!/:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar!/:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:887) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.43.jar!/:9.0.43]
at java.base/java.lang.Thread.run(Thread.java:831) ~[na:na]
Caused by: org.apache.ibatis.exceptions.PersistenceException:

Error querying database. Cause: org.apache.ibatis.builder.BuilderException: Error evaluating expression ‘parameter != null && parameter.topics.size > 0’. Cause: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]

Cause: org.apache.ibatis.builder.BuilderException: Error evaluating expression ‘parameter != null && parameter.topics.size > 0’. Cause: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]

at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:149) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.lambda$executeSelectList$1(DbSqlSession.java:111) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
at org.camunda.bpm.engine.impl.util.ExceptionUtil.doWithExceptionWrapper(ExceptionUtil.java:254) ~[camunda-engine-7.15.1-ee.jar!/:7.15.1-ee]
... 89 common frames omitted

Caused by: org.apache.ibatis.builder.BuilderException: Error evaluating expression ‘parameter != null && parameter.topics.size > 0’. Cause: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]
at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:48) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.ExpressionEvaluator.evaluateBoolean(ExpressionEvaluator.java:32) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.IfSqlNode.apply(IfSqlNode.java:34) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.lambda$apply$0(MixedSqlNode.java:32) ~[mybatis-3.5.6.jar!/:3.5.6]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.TrimSqlNode.apply(TrimSqlNode.java:55) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.lambda$apply$0(MixedSqlNode.java:32) ~[mybatis-3.5.6.jar!/:3.5.6]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:39) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:305) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:87) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) ~[mybatis-3.5.6.jar!/:3.5.6]
… 92 common frames omitted
Caused by: org.apache.ibatis.ognl.OgnlException: size
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:75) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:160) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.OgnlRuntime.getProperty(OgnlRuntime.java:3338) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.ASTProperty.getValueBody(ASTProperty.java:121) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.ASTChain.getValueBody(ASTChain.java:141) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.ASTGreater.getValueBody(ASTGreater.java:50) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.ASTAnd.getValueBody(ASTAnd.java:61) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:560) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:524) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:46) ~[mybatis-3.5.6.jar!/:3.5.6]
… 105 common frames omitted
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) ~[na:na]
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[na:na]
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) ~[na:na]
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193) ~[na:na]
at org.apache.ibatis.ognl.AccessibleObjectHandlerPreJDK9.setAccessible(AccessibleObjectHandlerPreJDK9.java:58) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1235) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:2160) ~[mybatis-3.5.6.jar!/:3.5.6]
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:66) ~[mybatis-3.5.6.jar!/:3.5.6]
… 122 common frames omitted

Rockdale · June 3, 2021, 1:47pm

Log - second part

2021-06-03 09:32:45.426 WARN 28612 — [http-nio-8080-exec-1] org.camunda.bpm.engine.rest.exception : ENGINE-REST-HTTP500 org.camunda.bpm.engine.ProcessEngineException: An exception occurred in the persistence layer. Please check the server logs for a detailed message and the entire exception stack trace.
at org.camunda.bpm.engine.impl.util.ExceptionUtil.wrapPersistenceException(ExceptionUtil.java:263)
at org.camunda.bpm.engine.impl.util.ExceptionUtil.doWithExceptionWrapper(ExceptionUtil.java:257)
at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.executeSelectList(DbSqlSession.java:111)
at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.selectList(DbSqlSession.java:103)
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.selectListWithRawParameter(DbEntityManager.java:182)
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.selectList(DbEntityManager.java:174)
at org.camunda.bpm.engine.impl.persistence.entity.ExternalTaskManager.selectExternalTasksForTopics(ExternalTaskManager.java:95)
at org.camunda.bpm.engine.impl.cmd.FetchExternalTasksCmd.execute(FetchExternalTasksCmd.java:76)
at org.camunda.bpm.engine.impl.cmd.FetchExternalTasksCmd.execute(FetchExternalTasksCmd.java:46)
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$1.doInTransaction(SpringTransactionInterceptor.java:72)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:70)
at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:70)
at org.camunda.bpm.engine.impl.interceptor.CommandCounterInterceptor.execute(CommandCounterInterceptor.java:35)
at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
at org.camunda.bpm.engine.impl.externaltask.ExternalTaskQueryTopicBuilderImpl.execute(ExternalTaskQueryTopicBuilderImpl.java:60)
at org.camunda.bpm.engine.rest.impl.FetchAndLockHandlerImpl.executeFetchAndLock(FetchAndLockHandlerImpl.java:268)
at org.camunda.bpm.engine.rest.impl.FetchAndLockHandlerImpl.tryFetchAndLock(FetchAndLockHandlerImpl.java:251)
at org.camunda.bpm.engine.rest.impl.FetchAndLockHandlerImpl.addPendingRequest(FetchAndLockHandlerImpl.java:316)
at org.camunda.bpm.engine.rest.impl.FetchAndLockRestServiceImpl.fetchAndLock(FetchAndLockRestServiceImpl.java:38)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:159)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:469)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:391)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:80)
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:99)
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:352)
at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:171)
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:119)
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:119)
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:119)
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:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
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:346)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:887)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:831)
Caused by: org.apache.ibatis.exceptions.PersistenceException:

Error querying database. Cause: org.apache.ibatis.builder.BuilderException: Error evaluating expression ‘parameter != null && parameter.topics.size > 0’. Cause: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]

Cause: org.apache.ibatis.builder.BuilderException: Error evaluating expression ‘parameter != null && parameter.topics.size > 0’. Cause: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]

at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:149)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140)
at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.lambda$executeSelectList$1(DbSqlSession.java:111)
at org.camunda.bpm.engine.impl.util.ExceptionUtil.doWithExceptionWrapper(ExceptionUtil.java:254)
... 89 more

Caused by: org.apache.ibatis.builder.BuilderException: Error evaluating expression ‘parameter != null && parameter.topics.size > 0’. Cause: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]
at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:48)
at org.apache.ibatis.scripting.xmltags.ExpressionEvaluator.evaluateBoolean(ExpressionEvaluator.java:32)
at org.apache.ibatis.scripting.xmltags.IfSqlNode.apply(IfSqlNode.java:34)
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.lambda$apply$0(MixedSqlNode.java:32)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32)
at org.apache.ibatis.scripting.xmltags.TrimSqlNode.apply(TrimSqlNode.java:55)
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.lambda$apply$0(MixedSqlNode.java:32)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32)
at org.apache.ibatis.scripting.xmltags.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:39)
at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:305)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:87)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147)
… 92 more
Caused by: org.apache.ibatis.ognl.OgnlException: size [java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6]
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:75)
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:160)
at org.apache.ibatis.ognl.OgnlRuntime.getProperty(OgnlRuntime.java:3338)
at org.apache.ibatis.ognl.ASTProperty.getValueBody(ASTProperty.java:121)
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258)
at org.apache.ibatis.ognl.ASTChain.getValueBody(ASTChain.java:141)
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258)
at org.apache.ibatis.ognl.ASTGreater.getValueBody(ASTGreater.java:50)
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258)
at org.apache.ibatis.ognl.ASTAnd.getValueBody(ASTAnd.java:61)
at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258)
at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:560)
at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:524)
at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:46)
… 105 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make public final int java.util.HashMap$Values.size() accessible: module java.base does not “opens java.util” to unnamed module @5f2050f6
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at org.apache.ibatis.ognl.AccessibleObjectHandlerPreJDK9.setAccessible(AccessibleObjectHandlerPreJDK9.java:58)
at org.apache.ibatis.ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1235)
at org.apache.ibatis.ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:2160)
at org.apache.ibatis.ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:66)
… 122 more

MaximMonin · June 3, 2021, 6:50pm

I cannot understand your worker code.
It commits failure and then error and then complete.

It is normal to use one of these, complete or failure or error.

And this error can be normal, under heavy load.

Rockdale · June 3, 2021, 8:43pm

Thank you.

the error is caused by this line client.subscribe(…

remove everything else only left taskService.complete still the same error.

the engine is running on my local and I am the only user. And external task never succeeded.

GotnOGuts · June 3, 2021, 10:08pm

Could this be related to the error reported in this other thread

The issue in that thread was that the MyBatis (which powers the persistence layer) has issues with OpenJDK16.

Rockdale · June 4, 2021, 1:10pm

Looks like it.

Following are my java and Camunda versions

Java version
java version “16.0.1” 2021-04-20
Java™ SE Runtime Environment (build 16.0.1+9-24)
Java HotSpot™ 64-Bit Server VM (build 16.0.1+9-24, mixed mode, sharing)

Camunda Enterprise
camunda-bpm-run-ee-7.15.1-ee

Will downgrade my Java SDK to see if it works

Thanks a lot…

Rockdale · June 4, 2021, 3:32pm

Just an update - yes it is the JDK version issue - it works fine after downgrade the Java Version. Thanks all

Rajesh_Shenoy · December 31, 2022, 5:59pm

Hi. I had the same issue. I had jdk 17 running. I tried installing jdk 11 and changed the jdk setting in intellij project structure and it worked.

cma · November 23, 2023, 11:54am

Just had the same issue. Seems to be fixable without changing the Java version.

I added VM options: --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/sun.nio.ch=ALL-UNNAMED

External Task Polling Failed with EngineError

This is the code in my worker.js

const processVariables = new Variables(); processVariables.set(“winning”, true); await taskService.complete(task, processVariables);

const processVariables = new Variables();
processVariables.set(“winning”, true);
await taskService.complete(task, processVariables);