org.eclipse.core.runtime.CoreException: IO failure: cannot load discovery directory
	at org.eclipse.mylyn.internal.discovery.core.model.RemoteBundleDiscoveryStrategy.performDiscovery(RemoteBundleDiscoveryStrategy.java:122)
	at org.eclipse.mylyn.internal.discovery.core.model.ConnectorDiscovery.performDiscovery(ConnectorDiscovery.java:115)
	at org.jboss.tools.central.editors.xpl.DiscoveryViewer$18.run(DiscoveryViewer.java:1509)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: java.io.FileNotFoundException: https://devstudio.jboss.com/updates/6.0/staging/devstudio-directory.xml
	at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryStatusHelper.checkFileNotFound(RepositoryStatusHelper.java:297)
	at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.checkException(FileReader.java:474)
	at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.sendRetrieveRequest(FileReader.java:431)
	at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.read(FileReader.java:273)
	at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.stream(RepositoryTransport.java:172)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.mylyn.internal.discovery.core.util.P2TransportService.stream(P2TransportService.java:93)
	at org.eclipse.mylyn.internal.discovery.core.util.WebUtil.stream(WebUtil.java:161)
	at org.eclipse.mylyn.internal.discovery.core.util.WebUtil.readResource(WebUtil.java:95)
	at org.eclipse.mylyn.internal.discovery.core.model.RemoteBundleDiscoveryStrategy.performDiscovery(RemoteBundleDiscoveryStrategy.java:107)
	... 3 more