Installing from an update site into rpm install causes duplicate IUs to be installed - use constraint violations ensue ---------------------------------------------------------------------------------------------------------------------- Key: JBDS-4183 URL: https://issues.jboss.org/browse/JBDS-4183 Project: Red Hat JBoss Developer Studio (devstudio) Issue Type: Bug Components: rpm Affects Versions: 10.2.0.AM3 Reporter: Nick Boldt Priority: Blocker Attachments: install-thym.png Steps to repro: 1. install from latest rpm, eg., 10.2.0.20161116.1342.el7 2. open Central > Software/Update, scroll down until you find the *Maven Integration for Eclipse JDT APT (m2e-apt)* connector 3. Install it. When prompted to restart, shut down Eclipse and check in your ~/.eclipse folder: {code} $➔ ll ~/.eclipse/org.eclipse.platform_*_linux_gtk_x86_64/plugins/ total 36K -rw-rw-r-- 1 nboldt nboldt 34K Nov 16 10:54 org.slf4j.api_1.7.2.v20121108-1250.jar {code} But this plugin is already installed here: {code}/opt/rh/rh-java-common/root/usr/share/java/slf4j/slf4j-api.jar /opt/rh/rh-eclipse46/root/usr/share/eclipse/droplets/egit-mylyn/eclipse/plugins/slf4j.api_1.7.4.jar{code} So even though the connector install doesn't install any new m2e-apt stuff (it's already installed too): {code} /opt/rh/rh-eclipse46/root/usr/share/eclipse/droplets/devstudio/eclipse/plugins/org.jboss.tools.maven.apt.ui_1.3.0.201610261805.jar /opt/rh/rh-eclipse46/root/usr/share/eclipse/droplets/devstudio/eclipse/plugins/org.jboss.tools.maven.apt.core_1.3.0.201610261805.jar /opt/rh/rh-eclipse46/root/usr/share/eclipse/droplets/devstudio/eclipse/features/org.jboss.tools.maven.apt.feature_1.3.0.201610261805 {code} ... the result of this install is to cause use constrain violations and break the devstudio install. A bigger problem occurs in JBDS-4150 when installing Thym or Aerogear features, since a second version of org.apache.httpcomponents.httpclient_4.3.6.v201511171540.jar is installed even though there's already one in the /opt/rh/ install footprint.