[JDK9+] org.jboss.metadata.merge package is exported by multiple jars --------------------------------------------------------------------- Key: JBMETA-405 URL: https://issues.jboss.org/browse/JBMETA-405 Project: JBoss Metadata Issue Type: Bug Components: common, ear Reporter: Tomaz Cerar Assignee: Tomaz Cerar Priority: Major Fix For: 12.0.0.Final if you have jboss-metadata-ear-11.0.0.Final.jar and jboss-metadata-common-11.0.0.Final.jar on your module path, jvm complains as both jars export package {{org.jboss.metadata.merge}} which violates the modules contract where only one module (jar) can provide single package. example error that jvm prints {noformat} Error: Modules jboss.metadata.ear and jboss.metadata.common export package org.jboss.metadata.merge to module wildfly.clustering.common {noformat}