[jboss-jira] [JBoss JIRA] (DROOLS-3869) ServiceDiscovery doesn't work with Fuse

[ https://issues.jboss.org/browse/DROOLS-3869?page=com.atlassian.jira.plugi... ] Anton Giertli commented on DROOLS-3869: --------------------------------------- More details: - Camel on EAP (Fuse 7.2.0 + EAP 7.1.x) - RHDM 7.0.0 - 7.3.0 (I've tried all the versions) Drools API is invoked in a Bean, which is part of the camel route. The bean includes following code: ~~~ KieServices ks = KieServices.Factory.get(); ~~~ KieServices are entry point to the Drools API. Unfortunately, this code, as is, returns null - which means any further API calls are not possible from this point on. There are two workarounds to this issue: # Instantiate KieServices using 'new' keyword # KieServices ksDirect = new KieServicesImpl(); However, this breaks the contract since KieServices should really be a singleton. # Change thread context classloader (TCCL): ~~~ // Workaround due to classloading issues ClassLoader prevTCL = Thread.currentThread().getContextClassLoader(); Thread.currentThread().setContextClassLoader(RuleRepository.class.getClassLoader()); KieServices ks = KieServices.Factory.get(); ReleaseId releaseId = ks.newReleaseId(groupId, artifactid, version); container = ks.newKieContainer(releaseId); scanner = ks.newKieScanner(container); Thread.currentThread().setContextClassLoader(prevTCL); // end of workaround ~~~ This works fine, but it's considered as a hack. Reproducer is attached. Instructions are these: ~~~ - Install Fuse 7.2 on EAP - no further changes to installation are needed https://access.redhat.com/documentation/en-us/red_hat_fuse/7.2/html/insta... - Start the instance - Extract my app and execute 'mvn clean install' - this will automatically deploy it onto eap/wildfly - GET http://127.0.0.1:8080/rest/reproducer/execute You should see following response in the server.log: 18:30:26,409 INFO [stdout] (default task-2) KS is null Which means KieServices are null, hence I cannot proceed with operations such as loading the KJAR etc. In reproducer, the app flow goes from: RESTBuilder -> Hello.java -> sampleMethod ~~~ -- This message was sent by Atlassian Jira (v7.12.1#712002)