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  Hi there,  I have the following OQL query on a Data Set:  SELECT Main.Job/Job_Name as Discipline, Main.Candidate.Name as Name, Main.Job/position as Function, Main.Certificate/Name as Certificate, Main.LanguageSkills/Level as English, Main.Candidate/LastWorkedFor as Client, Main.Candidate/Netto as Netto, Main.Candidate.Phone as Phone FROM Main.Candidate Inner join Main.Candidate/Main.Candidate_Job/Main.Job Inner Join Main.Candidate/Main.Candidate_Certificate/Main.Certificate Inner Join Main.Candidate/Main.Candidate_LanguageSkills/Main.LanguageSkills Where Main.Candidate/Level!='employee' and Main.Candidate/Status='Propus' Group by Main.Candidate.Name Which creates an error saying all actions were rolled back. It seems like a basic OQL query and strange is when I replace Group by with Order by it works fine.  The reason for ‘Group by’ is that I want to have all Candidate.Name not repeating.  Maybe I am not using ‘Group by’ correctly. Any suggestions are more than welcomed. Thank you, Also the stack error :  com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"request":"InternalOqlTextGetRequest (depth = 0): \t\t\tSELECT \t\t\tMain.Candidate.Name as Name, \t\t\tMain.Candidate/LastWorkedFor as Client, \t\t\tMain.Candidate/Netto as Netto, \t\t\t \t\t\tMain.Candidate.Phone as Phone \t \t\t\tFROM\t \t\t\tMain.Candidate \t\t\t\t \t\t\tWhere Main.Candidate/Level!='employee' and Main.Candidate/Status='Propus' \t\t\tGroup by Main.Candidate.Name\t\t\t ","type":"RetrieveOQLDataTableAction"}', all database changes executed by this action were rolled back at com.mendix.basis.actionmanagement.ActionManagerBase.executeSync(ActionManagerBase.java:159) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"request":"InternalOqlTextGetRequest (depth = 0): \t\t\tSELECT \t\t\tMain.Candidate.Name as Name, \t\t\tMain.Candidate/LastWorkedFor as Client, \t\t\tMain.Candidate/Netto as Netto, \t\t\t \t\t\tMain.Candidate.Phone as Phone \t \t\t\tFROM\t \t\t\tMain.Candidate \t\t\t\t \t\t\tWhere Main.Candidate/Level!='employee' and Main.Candidate/Status='Propus' \t\t\tGroup by Main.Candidate.Name\t\t\t ","type":"RetrieveOQLDataTableAction"}', all database changes executed by this action were rolled back at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:36) Caused by: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"request":"InternalOqlTextGetRequest (depth = 0): \t\t\tSELECT \t\t\tMain.Candidate.Name as Name, \t\t\tMain.Candidate/LastWorkedFor as Client, \t\t\tMain.Candidate/Netto as Netto, \t\t\t \t\t\tMain.Candidate.Phone as Phone \t \t\t\tFROM\t \t\t\tMain.Candidate \t\t\t\t \t\t\tWhere Main.Candidate/Level!='employee' and Main.Candidate/Status='Propus' \t\t\tGroup by Main.Candidate.Name\t\t\t ","type":"RetrieveOQLDataTableAction"}', all database changes executed by this action were rolled back at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.processErrorState(CoreActionHandlerImpl.scala:160) Caused by: com.mendix.basis.connectionbus.ConnectionBusException: An exception has occurred for the following request(s): InternalOqlTextGetRequest (depth = -1): SELECT Main.Candidate.Name as Name, Main.Candidate/LastWorkedFor as Client, Main.Candidate/Netto as Netto, Main.Candidate.Phone as Phone FROM Main.Candidate Where Main.Candidate/Level!='employee' and Main.Candidate/Status='Propus' Group by Main.Candidate.Name at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.java:55) Caused by: com.mendix.basis.connectionbus.ConnectionBusException: Exception occurred while retrieving data. (SQL State: 42574, Error Code: -5574) Detail Message: org.hsqldb.HsqlException: expression not in aggregate or GROUP BY columns: PUBLIC."main$candidate"."lastworkedfor" at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.getCorrectException(JdbcDataStore.java:736) Caused by: java.sql.SQLSyntaxErrorException: expression not in aggregate or GROUP BY columns: PUBLIC."main$candidate"."lastworkedfor" in statement [SELECT "main$candidate"."name" AS "Name", "main$candidate"."lastworkedfor" AS "Client", "main$candidate"."netto" AS "Netto", "main$candidate"."phone" AS "Phone" FROM "main$candidate" WHERE ("main$candidate"."level" != ? OR "main$candidate"."level" IS NULL) AND "main$candidate"."status" = ? GROUP BY "main$candidate"."name"] at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source) at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source) at org.apache.commons.dbcp2.DelegatingConnection.prepareStatement(DelegatingConnection.java:288) at org.apache.commons.dbcp2.DelegatingConnection.prepareStatement(DelegatingConnection.java:288) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.execRetrieveQuery(JdbcDataStore.java:282) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.execRetrieveQueries(JdbcDataStore.java:195) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.retrieve(JdbcDataStore.java:155) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.retrieve(JdbcDataStore.java:150) at com.mendix.connectionbus.retrieve.InternalRequest.executeQueries(QueryRequestType.scala:75) at com.mendix.connectionbus.retrieve.InternalRequest.execute(QueryRequestType.scala:54) at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$processOqlGetRequest$1(DataStoreCaller.scala:49) at scala.Option.map(Option.scala:146) at com.mendix.connectionbus.retrieve.DataStoreCaller.processOqlGetRequest(DataStoreCaller.scala:43) at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$getResult$1(DataStoreCaller.scala:36) at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:240) at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:32) at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:29) at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:37) at scala.collection.TraversableLike.flatMap(TraversableLike.scala:240) at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:237) at scala.collection.AbstractTraversable.flatMap(Traversable.scala:104) at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.scala:36) at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.scala:34) at com.mendix.connectionbus.retrieve.GetRequestHandler.doRequest(GetRequestHandler.java:75) at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.java:50) at com.mendix.connectionbus.ConnectionBusImpl.doRequest(ConnectionBusImpl.java:447) at com.mendix.basis.action.user.RetrieveOQLDataTableAction.executeAction(RetrieveOQLDataTableAction.java:87) at com.mendix.basis.action.user.RetrieveOQLDataTableAction.executeAction(RetrieveOQLDataTableAction.java:18) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:46) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:79) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:57) at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:55) at com.mendix.basis.actionmanagement.ActionManagerBase$1.execute(ActionManagerBase.java:150) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.basis.actionmanagement.ActionManagerBase.executeSync(ActionManagerBase.java:155) at com.mendix.basis.component.InternalCoreBase.retrieveOQLDataTable(InternalCoreBase.java:1099) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getResultFromOQL(SeriesDataGenerator.java:421) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getSeriesValues(SeriesDataGenerator.java:340) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getSeriesDataList(SeriesDataGenerator.java:84) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getSeriesDataList(SeriesDataGenerator.java:75) at com.mendix.webui.reporting.clientactions.ReportAction.execute(ReportAction.java:62) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleRequest$2(ClientRequestHandler.scala:183) at com.mendix.webui.requesthandling.helpers.StateHandling.withState(StateHandling.scala:33) at com.mendix.webui.requesthandling.helpers.StateHandling.withState$(StateHandling.scala:22) at com.mendix.webui.requesthandling.ClientRequestHandler.withState(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleRequest$1(ClientRequestHandler.scala:181) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleRequest$1$adapted(ClientRequestHandler.scala:167) at com.mendix.webui.requesthandling.helpers.ContextHandling.$anonfun$inContext$4(ContextHandling.scala:41) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12) at com.mendix.basis.actionmanagement.IMonitoredAction$$anon$1.execute(IMonitoredAction.scala:47) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.basis.actionmanagement.IMonitoredAction.monitor(IMonitoredAction.scala:49) at com.mendix.basis.actionmanagement.IMonitoredAction.monitor$(IMonitoredAction.scala:25) at com.mendix.webui.requesthandling.helpers.ContextHandling$ClientMonitoredAction.monitor(ContextHandling.scala:49) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:41) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:27) at com.mendix.webui.requesthandling.ClientRequestHandler.inContext(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:24) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:19) at com.mendix.webui.requesthandling.ClientRequestHandler.inContext(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.ClientRequestHandler.handleRequest(ClientRequestHandler.scala:167) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleAction$1(ClientRequestHandler.scala:138) at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest(ProfileHandling.scala:14) at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest$(ProfileHandling.scala:10) at com.mendix.webui.requesthandling.ClientRequestHandler.profileRequest(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:138) at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:101) at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:40) at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:72) at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:69) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.java:75) at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.java:872) at com.mendix.m2ee.appcontainer.server.handler.RuntimeHandler.service(RuntimeHandler.java:42) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:867) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1588) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1557) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:502) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) at java.lang.Thread.run(Thread.java:748) Caused by: org.hsqldb.HsqlException: expression not in aggregate or GROUP BY columns: PUBLIC."main$candidate"."lastworkedfor" at org.hsqldb.error.Error.error(Unknown Source) at org.hsqldb.error.Error.error(Unknown Source) at org.hsqldb.QuerySpecification.resolveGroups(Unknown Source) at org.hsqldb.QuerySpecification.resolveTypesPartTwo(Unknown Source) at org.hsqldb.QueryExpression.resolve(Unknown Source) at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source) at org.hsqldb.ParserCommand.compilePart(Unknown Source) at org.hsqldb.ParserCommand.compileStatement(Unknown Source) at org.hsqldb.Session.compileStatement(Unknown Source) at org.hsqldb.StatementManager.compile(Unknown Source) at org.hsqldb.Session.execute(Unknown Source) at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source) at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source) at org.apache.commons.dbcp2.DelegatingConnection.prepareStatement(DelegatingConnection.java:288) at org.apache.commons.dbcp2.DelegatingConnection.prepareStatement(DelegatingConnection.java:288) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.execRetrieveQuery(JdbcDataStore.java:282) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.execRetrieveQueries(JdbcDataStore.java:195) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.retrieve(JdbcDataStore.java:155) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.retrieve(JdbcDataStore.java:150) at com.mendix.connectionbus.retrieve.InternalRequest.executeQueries(QueryRequestType.scala:75) at com.mendix.connectionbus.retrieve.InternalRequest.execute(QueryRequestType.scala:54) at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$processOqlGetRequest$1(DataStoreCaller.scala:49) at scala.Option.map(Option.scala:146) at com.mendix.connectionbus.retrieve.DataStoreCaller.processOqlGetRequest(DataStoreCaller.scala:43) at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$getResult$1(DataStoreCaller.scala:36) at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:240) at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:32) at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:29) at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:37) at scala.collection.TraversableLike.flatMap(TraversableLike.scala:240) at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:237) at scala.collection.AbstractTraversable.flatMap(Traversable.scala:104) at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.scala:36) at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.scala:34) at com.mendix.connectionbus.retrieve.GetRequestHandler.doRequest(GetRequestHandler.java:75) at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.java:50) at com.mendix.connectionbus.ConnectionBusImpl.doRequest(ConnectionBusImpl.java:447) at com.mendix.basis.action.user.RetrieveOQLDataTableAction.executeAction(RetrieveOQLDataTableAction.java:87) at com.mendix.basis.action.user.RetrieveOQLDataTableAction.executeAction(RetrieveOQLDataTableAction.java:18) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:46) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:79) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:57) at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:55) at com.mendix.basis.actionmanagement.ActionManagerBase$1.execute(ActionManagerBase.java:150) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.basis.actionmanagement.ActionManagerBase.executeSync(ActionManagerBase.java:155) at com.mendix.basis.component.InternalCoreBase.retrieveOQLDataTable(InternalCoreBase.java:1099) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getResultFromOQL(SeriesDataGenerator.java:421) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getSeriesValues(SeriesDataGenerator.java:340) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getSeriesDataList(SeriesDataGenerator.java:84) at com.mendix.webui.reporting.generation.SeriesDataGenerator.getSeriesDataList(SeriesDataGenerator.java:75) at com.mendix.webui.reporting.clientactions.ReportAction.execute(ReportAction.java:62) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleRequest$2(ClientRequestHandler.scala:183) at com.mendix.webui.requesthandling.helpers.StateHandling.withState(StateHandling.scala:33) at com.mendix.webui.requesthandling.helpers.StateHandling.withState$(StateHandling.scala:22) at com.mendix.webui.requesthandling.ClientRequestHandler.withState(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleRequest$1(ClientRequestHandler.scala:181) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleRequest$1$adapted(ClientRequestHandler.scala:167) at com.mendix.webui.requesthandling.helpers.ContextHandling.$anonfun$inContext$4(ContextHandling.scala:41) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12) at com.mendix.basis.actionmanagement.IMonitoredAction$$anon$1.execute(IMonitoredAction.scala:47) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.basis.actionmanagement.IMonitoredAction.monitor(IMonitoredAction.scala:49) at com.mendix.basis.actionmanagement.IMonitoredAction.monitor$(IMonitoredAction.scala:25) at com.mendix.webui.requesthandling.helpers.ContextHandling$ClientMonitoredAction.monitor(ContextHandling.scala:49) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:41) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:27) at com.mendix.webui.requesthandling.ClientRequestHandler.inContext(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:24) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:19) at com.mendix.webui.requesthandling.ClientRequestHandler.inContext(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.ClientRequestHandler.handleRequest(ClientRequestHandler.scala:167) at com.mendix.webui.requesthandling.ClientRequestHandler.$anonfun$handleAction$1(ClientRequestHandler.scala:138) at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest(ProfileHandling.scala:14) at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest$(ProfileHandling.scala:10) at com.mendix.webui.requesthandling.ClientRequestHandler.profileRequest(ClientRequestHandler.scala:29) at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:138) at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:101) at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:40) at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:72) at com.mendix.external.connector.MxRuntimeConnector$1.execute(MxRuntimeConnector.java:69) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.java:75) at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.java:872) at com.mendix.m2ee.appcontainer.server.handler.RuntimeHandler.service(RuntimeHandler.java:42) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:867) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1588) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1557) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:502) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) at java.lang.Thread.run(Thread.java:748)       

asked 2019-02-22

2 answers