browsersim, cordovasim, and aerogear depend on jetty 9.3.9 but Oxygen target platform 4.70.x contains jetty 9.4

   [p2.dir]  Missing requirement: BrowserSim 3.8.3.v20161201-1732 (org.jboss.tools.browsersim.ui 3.8.3.v20161201-1732) 
requires 'bundle org.eclipse.jetty.server [9.3.9,9.4.0)' but it could not be found

– https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_Master/job/jbosstools-composite-install_master/29003/console

This is caused by the fact that the composite install test job is trying to install everything in JBT sites on top of the target platform used by master branch (4.70.0.AM1-SNAPSHOT) [1], which has been updated to use Jetty 9.4.0.

So, p2 can't resolve the missing dep as the org.jboss.tools.browsersim.ui plugin requires [9.3.9,9.4.0).

[1] https://devstudio.jboss.com/targetplatforms/jbdevstudiotarget/4.70.0.AM1-SNAPSHOT/REPO/

Solution: browsersim (and other jbosstools-* projects) should support jetty 9.4.0.