Security issue on microflow call without entity access

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I have an object where security is applied. There is one modulerole available in this module. There are two security rules applied for this object. The first rule defines only read access without constraints, no create and no delete. The second rule defines read write access with a constraint, create and no delete. I created a microflow that retrieves the object (Apply entity access is false) and an error occures. What can cause this error? Error: aa: jv: Unknown null expression. at ie.b(SourceFile:164) at com.mendix.core.Core.retrieveXPathQuery(SourceFile:803) at iz.a(SourceFile:86) at kG.a(SourceFile:66) at eE.executeAction(SourceFile:96) at com.mendix.systemwideinterfaces.core.UserAction.execute(SourceFile:49) at com.mendix.core.actionmanagement.CoreAction.call(SourceFile:473) at ie.b(SourceFile:155) at com.mendix.core.Core.executeSync(SourceFile:163) at id.a(SourceFile:71) at kG.a(SourceFile:66) at eE.executeAction(SourceFile:96) at com.mendix.systemwideinterfaces.core.UserAction.execute(SourceFile:49) at com.mendix.core.actionmanagement.CoreAction.call(SourceFile:473) at ie.b(SourceFile:155) at com.mendix.core.Core.execute(SourceFile:187) at dn.execute(SourceFile:183) at jg.a(SourceFile:280) at jg.a(SourceFile:212) at jg.processRequest(SourceFile:168) at fq.a(SourceFile:75) at com.mendix.core.MxRuntime.processRequest(SourceFile:889) at com.mendix.m2ee.server.handler.RuntimeHandler.handle(RuntimeHandler.java:39) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:113) at org.eclipse.jetty.server.Server.handle(Server.java:334) at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:559) at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1007) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:747) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:209) at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:406) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:462) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:436) at java.lang.Thread.run(Thread.java:619) Caused by: jv: Unknown null expression. at ar.a(SourceFile:1497) Caused by: Unknown null expression. at ex.c(SourceFile:651)
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1 answers
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It is not clear what the cause is of this error. You can set the log level of CONNECTIONBUS_RETRIEVE and CONNECTIONBUS_MAPPING to TRACE and analyse the parsed and mapped XPath and OQL and any security warnings. Otherwise you can create a bug report with a test project.

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