[ https://issues.jboss.org/browse/JBIDE-20803?page=com.atlassian.jira.plugi... ] Nick Boldt commented on JBIDE-20803: ------------------------------------ Having pushed these into staging site, I can test them like this: 1. Install Eclipse 2. install JBT or JBDS 3. Launch Eclipse using vmargs set below. {code} # JBoss Tools url=http://download.jboss.org/jbosstools/mars/staging/updates/discovery.c... ./eclipse -vmargs -Djboss.discovery.directory.url=${url}jbosstools-directory.xml -Djboss.discovery.site.integration-stack.url=${url} # JBDS url=https://devstudio.redhat.com/9.0/staging/updates/discovery.earlyacces... ./eclipse -vmargs -Djboss.discovery.directory.url=${url}devstudio-directory.xml -Djboss.discovery.site.integration-stack.url=${url} {code} If you don't include the `jboss.discovery.site.integration-stack.url` property, JBT/JBDS will read the value from ide-config.properties, which is currently set to "" (null string) and return this error: {code} !MESSAGE org.jboss.tools.central.discovery.integration_stack_4.3.0.Alpha2_v20150922_1058_B430.jar_4644660859188953740.jar: Must specify connectorDescriptor/@siteUrl !STACK 1 org.eclipse.mylyn.internal.discovery.core.model.ValidationException: Must specify connectorDescriptor/@siteUrl {code} And, because of that error, none of the IS "notavailable" connectors are shown. So, TL;DR, can we point the `jboss.discovery.site.integration-stack.url` at the same URL as `jboss.discovery.site.url` for now? -- This message was sent by Atlassian JIRA (v6.4.11#64026)