Wildfly Servoy Jasper Reports is not working

Questions
1

I deployed our solution (2021.03) on a wildfly server with java.version=1.8.0_271 and everything is running fine except jasper reports.
I get the following error:

2021-05-20 12:57:46,675 ERROR [com.servoy.j2db.util.Debug] (pool-19-thread-4) org.apache.xerces.util.XMLGrammarPoolImpl cannot be cast to org.apache.xerces.xni.grammars.XMLGrammarPool: java.lang.ClassCastException: org.apache.xerces.util.XMLGrammarPoolImpl cannot be cast to org.apache.xerces.xni.grammars.XMLGrammarPool
	at org.apache.xerces.impl.xs.XMLSchemaLoader.reset(XMLSchemaLoader.java:1024)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.reset(XMLSchemaValidator.java:1355)
	at org.apache.xerces.parsers.XML11Configuration.configurePipeline(XML11Configuration.java:1243)
	at org.apache.xerces.parsers.XIncludeAwareParserConfiguration.configurePipeline(XIncludeAwareParserConfiguration.java:152)
	at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:835)
	at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:798)
	at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1198)
	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:564)
	at org.apache.commons.digester.Digester.parse(Digester.java:1892)
	at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:299)
	at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:286)
	at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:275)
	at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:220)
	at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:195)
	at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:186)
	at com.servoy.plugins.jasperreports.JasperReportsServer.getJasperReport(JasperReportsServer.java:194)
	at com.servoy.plugins.jasperreports.JasperReportsServer.getJasperPrint(JasperReportsServer.java:997)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.servoy.j2db.util.AbstractRemoteInvocationHandler.invokeMethod(AbstractRemoteInvocationHandler.java:77)
	at com.servoy.j2db.util.ThreadingRemoteInvocationHandler$1.run(ThreadingRemoteInvocationHandler.java:79)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

2021-05-20 12:57:46,678 ERROR [com.servoy.j2db.util.Debug] (Executor,uuid:qj6D4Sl:2) Input type JDBCdatabase has been used with an incorrect datasource of type: class java.lang.String

Jasper Plugin has version jasperreports-6.16.0.
Does anyone have an idea?

2

Problem solved. Seems that Servoy is not able to create the .jasper files. Copied the files from my source and now it’s going fine now.
Is this normal behaviour with ng clients / wildfly? I never used the .jasper files with Servoy Application Server and smart / webclient.