[JDK9+] org.jboss.security.negotiation.spnego package is exported by two jars ----------------------------------------------------------------------------- Key: WFLY-9855 URL: https://issues.jboss.org/browse/WFLY-9855 Project: WildFly Issue Type: Bug Components: Security Reporter: Tomaz Cerar Priority: Critical Currently if you have jboss-negotiation-spnego-3.0.4.Final and jboss-negotiation-extras-3.0.4.Final.jar on your module path, jvm complains as both jars export package org.jboss.security.negotiation.spnego which violates the modules contract where only one module (jar) can provide single package. example error that jvm prints {noformat} Error: Modules jboss.negotiation.extras and jboss.negotiation.spnego export package org.jboss.security.negotiation.spnego to module wildfly.clustering.common {noformat}