Bug 239523 [TabbedProperties] Three JavaDoc warnings
I noticed there are three JavaDoc warnings in the org.eclipse.ui.views.properties.tabbed, there should be zero warnings and errors.
bundles/org.eclipse.ui.views.properties.tabbed/src/org/eclipse/ui/internal/views/properties/tabbed/view/TabbedPropertyList.java
int tabHeight = getTextDimension("").y + INDENT;  
		if (tabsThatFitInComposite == 1) {
			/*
			 * if only one tab will fix, reduce the size of the tab height so
			 * that the navigation elements fit.
			 */
			int ret = getBounds().height - 20;
			return (ret > tabHeight) ? tabHeight
				: (ret < 5) ? 5
					: ret;
		}
		return tabHeight;
	}
	/**
	 * Determine if a downward scrolling is required.
	 * 
	 * @return true if downward scrolling is required.
	 */
	private boolean isDownScrollRequired() {
		return elements.length > tabsThatFitInComposite
			&& bottomVisibleIndex != elements.length - 1;
	}
	/**
	 * Determine if an upward scrolling is required.
	 * 
	 * @return true if upward scrolling is required.
	 */
	private boolean isUpScrollRequired() {
		return elements.length > tabsThatFitInComposite && topVisibleIndex != 0;
	}