CDT ist not running but just raises plenty of exceptions
          like this one:
        
          org.osgi.framework.BundleException: Could not resolve
            module: org.eclipse.cdt.ui [90]
            Unresolved requirement: Require-Bundle:
            org.eclipse.cdt.core; bundle-version="[5.2.0,6.0.0)"
              -> Bundle-SymbolicName: org.eclipse.cdt.core;
            bundle-version="5.7.0.201403110552"; singleton:="true"
                 org.eclipse.cdt.core [63]
                   Unresolved requirement: Require-Capability: 
osgi.ee;
            filter:="(&(
osgi.ee=JavaSE)(version=1.7))"
          
           at
            org.eclipse.osgi.container.Module.start(Module.java:433)
           at
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1562)
           at
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1541)
           at
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1513)
           at
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1456)
           at
org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
           at
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
           at
org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
         
        Any ideas from the CDT team why this could happen (changed
          feature structure or so)?