Bug 46351 Call Hierarchy must not implement IViewSite [call hierarchy]
I20031105 The call hierarchy component implements IViewSite which is not allowed. There seems to be no reason for doing so: the CallHierarchyViewPart should directly set the selection provider to its site.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/callhierarchy/CallHierarchyViewPart.java
}
    }
    public void jumpToSelection(ISelection selection) {
        if ((selection != null) && selection instanceof IStructuredSelection) {
            Object structuredSelection = ((IStructuredSelection) selection).getFirstElement();
            if (structuredSelection instanceof MethodWrapper) {
                MethodWrapper methodWrapper = (MethodWrapper) structuredSelection;
                CallLocation firstCall = methodWrapper.getMethodCall()
                                                      .getFirstCallLocation();
                if (firstCall != null) {
                    CallHierarchyUI.jumpToLocation(firstCall);
                } else {
                    CallHierarchyUI.jumpToMember(methodWrapper.getMember());
                }
            } else if (structuredSelection instanceof CallLocation) {
                CallHierarchyUI.jumpToLocation((CallLocation) structuredSelection);
            }
        }
    }
    /**
     *
     */
    public void refresh() {
        setCalleeRoot(null);
        setCallerRoot(null);
        updateView();
    }
    public void saveState(IMemento memento) {
        if (fPagebook == null) {