in the commit for JBIDE-19122 (which bumped branch to 2.6.2) I erroneously included the stubs for the v3 OpenShift plugins (empty plugin directories with a .project file):

• org.jboss.tools.openshift.core
• org.jboss.tools.openshift.ui
• org.jboss.tools.openshift.client
• org.jboss.tools.openshift.common.core
• org.jboss.tools.openshift.common.ui

See https://github.com/adietish/jbosstools-openshift/commit/ac9596eb19efb07cbf090382397aa3c72cab825b

There's no harm since they're not included in the features nor in the build but we have to remove those again.