Using jboss-modules loading outside WildFly 12 is broken -------------------------------------------------------- Key: WFLY-10199 URL: https://issues.jboss.org/browse/WFLY-10199 Project: WildFly Issue Type: Bug Affects Versions: 12.0.0.Final Reporter: Martin Perina Assignee: David Lloyd oVirt is using jboss-modules not only for dependencies inside WildFly, but also when executing command line tools outside WildFly process. We are using following method which worked fine from JBoss 7 to WildFly11: {code} export JAVA_MODULEPATH="<PATH TO OUR MODULES>" exec "${JAVA_HOME}/bin/java" \ -jar "${JBOSS_HOME}/jboss-modules.jar" \ -dependencies org.ovirt.engine.core.tools \ -class org.ovirt.engine.core.cryptotool.Main \ "$@" {code} where "org.ovirt.engine.core.tools" is one of our existing module and in class we have standard Java class with main() method executing logic of specific command line tool. When I try to execute this code with WildFly 12.0.0.FINAL I receive following exception: {code} Exception in thread "main" java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:460) at java.util.Properties.setProperty(Properties.java:166) at java.lang.System.setProperty(System.java:796) at org.jboss.modules.PropertyWriteAction.run(PropertyWriteAction.java:40) at org.jboss.modules.PropertyWriteAction.run(PropertyWriteAction.java:28) at java.security.AccessController.doPrivileged(Native Method) at org.jboss.modules.Main.main(Main.java:390) {code} When I tried to replace jboss-modules.jar provided by WildFly 12.0.0.FINAL with manuall build using latest code in 1.7 branch (commit a52a323c5c3d71cf9597f06951155e4639cbb707) I receive different error: {code} org.jboss.modules.ModuleNotFoundException: org.ovirt.engine.core.tools at org.jboss.modules.Module.addPaths(Module.java:1221) at org.jboss.modules.Module.link(Module.java:1577) at org.jboss.modules.Module.relinkIfNecessary(Module.java:1605) at org.jboss.modules.ModuleLoader.loadModule(ModuleLoader.java:296) at org.jboss.modules.Main.main(Main.java:426) {code} I haven't found any documentation describing such incompatible between 1.6 and 1.7, so is there any way how to have above execution compatible with both jboss-modules versions? Thanks Martin