Bug 72036 Call hierarchy Sash location not saved in prefs [call hierarchy]
The location of the sash in the call hierarchy view is not persisted. Open the view, drag the sash, close the view, and reopen to reproduce this bug. A separate ratio, one for each vertical and horizontal orientations, should be persisted.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/callhierarchy/CallHierarchyViewPart.java
fillActionBars();
        initOrientation();
        initCallMode();
        if (fMemento != null) {
            restoreState(fMemento);
        }
   }
	private void addResizeListener(Composite parent) {
		parent.addControlListener(new ControlListener() {
			public void controlMoved(ControlEvent e) {
			}
			public void controlResized(ControlEvent e) {
				computeOrientation();
			}
		});
	}
	void computeOrientation() {
		if (fOrientation != VIEW_ORIENTATION_AUTOMATIC) {
			setOrientation(fOrientation);
		}
		else {
			if (fOrientation == VIEW_ORIENTATION_SINGLE)
				return;
			Point size= fParent.getSize();
			if (size.x != 0 && size.y != 0) {
				if (size.x > size.y) 
					setOrientation(VIEW_ORIENTATION_HORIZONTAL);
				else 
					setOrientation(VIEW_ORIENTATION_VERTICAL);
			}