java.lang.IllegalStateException: There's already another KieContainer created from a different ClassLoader ---------------------------------------------------------------------------------------------------------- Key: DROOLS-3991 URL: https://issues.jboss.org/browse/DROOLS-3991 Project: Drools Issue Type: Bug Components: kie server Affects Versions: 7.15.0.Final Reporter: Anuradha Prabhala Assignee: Maciej Swiderski Priority: Critical I deployed 2 war files in wildfly 14. Both of them are drools projects that are trying to execute some rules. The problem is that only one of the war file is able to execute drools rule. The other fails with the below Internal Server Error: Caused by: java.lang.IllegalStateException: There's already another KieContainer created from a different ClassLoader at org.drools.compiler.kie.builder.impl.KieServicesImpl.getKieClasspathContainer(KieServicesImpl.java:107) at org.drools.compiler.kie.builder.impl.KieServicesImpl.getKieClasspathContainer(KieServicesImpl.java:79) at org.drools.examples.helloworld.HelloWorldExample.drools(HelloWorldExample.java:49) at com.sample.rest.MessageRestService.Testdrools(MessageRestService.java:26) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)