Bug 72285 [KeyBindings] registry: Cannot assign keybinding to general views
It seems the views have to do something special to show up on the "Views" keybinding list. It would be nice if all views showed up automatically. Of course then (or even now) there would be so many views that the current level of grouping is not sufficient.
bundles/org.eclipse.core.commands/src/org/eclipse/core/internal/commands/util/Util.java
final boolean allowNullValues) {
        if (map == null || keyClass == null || valueClass == null)
            throw new NullPointerException();
        final Map copy = Collections.unmodifiableMap(new HashMap(map));
        final Iterator iterator = copy.entrySet().iterator();
        while (iterator.hasNext()) {
            final Map.Entry entry = (Map.Entry) iterator.next();
            assertInstance(entry.getKey(), keyClass, allowNullKeys);
            assertInstance(entry.getValue(), valueClass, allowNullValues);
        }
        return map;
    }
    /**
     * Makes a type-safe copy of the given set. This method should be used when
     * a set is crossing an API boundary (i.e., from a hostile plug-in into
     * internal code, or vice versa).
     * 
     * @param set
     *            The set which should be copied; must not be <code>null</code>.
     * @param c
     *            The class that all the values must be; must not be
     *            <code>null</code>.
     * @return A copy of the set; may be empty, but never <code>null</code>.
     *         None of its element will be <code>null</code>.
     */
    public static final Set safeCopy(final Set set, final Class c) {
        return safeCopy(set, c, false);
    }
    /**
     * Makes a type-safe copy of the given set. This method should be used when