java.lang.IllegalArgumentException: object is not an instance of declaring class" error in the server.log file when BPMS 6.4.11 is installed on EAP 6.4.21 ---------------------------------------------------------------------------------------------------------------------------------------------------------- Key: DROOLS-3181 URL: https://issues.jboss.org/browse/DROOLS-3181 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 7.13.0.Final Environment: Red Hat BPM Suite (BPMS) 6.4.11 Red Hat Enterprise Application Platform (EAP) 6.4.21 Reporter: Mario Fusco Assignee: Mario Fusco Priority: Major Labels: support Fix For: 7.14.0.Final The following error is logged in the server.log file when BPMS is installed on EAP 6.4.21: {noformat} ERROR [org.drools.compiler.kie.builder.impl.ClasspathKieProject] (MSC service thread 1-7) Error when reading virtual file from vfs:/home/user/6411/jboss-eap-6.4/standalone/deployments/business-central.war/WEB-INF/lib/drools-pmml-6.5.0.Final-redhat-25.jar/META-INF/kmodule.xml: java.lang.IllegalArgumentException: object is not an instance of declaring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_181] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.getPathForVFS(ClasspathKieProject.java:426) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.fixURLFromKProjectPath(ClasspathKieProject.java:371) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.fetchKModule(ClasspathKieProject.java:141) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.discoverKieModules(ClasspathKieProject.java:112) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.ClasspathKieProject.init(ClasspathKieProject.java:84) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.KieContainerImpl.<init>(KieContainerImpl.java:141) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieClasspathContainer(KieServicesImpl.java:131) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieClasspathContainer(KieServicesImpl.java:118) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] at org.drools.compiler.cdi.KieCDIExtension.init(KieCDIExtension.java:90) [drools-compiler-6.5.0.Final-redhat-25.jar:6.5.0.Final-redhat-25] {noformat} Does not occur on EAP 6.4.20