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
hoverGradientEnd = factory.getColors().createColor(
				"TabbedPropertyList.hoverBackgroundGradientEnd", 
				FormColors.blend(widgetNormalShadow.getRGB(), widgetBackground
						.getRGB(), 10));
		indentedDefaultBackground = factory.getColors().createColor(
				"TabbedPropertyList.indentedDefaultBackground", 
				FormColors.blend(white, widgetBackground.getRGB(), 10));
		indentedHoverBackground = factory.getColors().createColor(
				"TabbedPropertyList.indentedHoverBackground", 
				FormColors.blend(white, widgetBackground.getRGB(), 75));
	}
	public void dispose() {
		hoverGradientStart.dispose();
		hoverGradientEnd.dispose();
		defaultGradientStart.dispose();
		defaultGradientEnd.dispose();
		indentedDefaultBackground.dispose();
		indentedHoverBackground.dispose();
		navigationElementShadowStroke.dispose();
		bottomNavigationElementShadowStroke1.dispose();
		bottomNavigationElementShadowStroke2.dispose();
		super.dispose();
	}
	/**
	 * Get the height of a tab. The height of the tab is the height of the text
	 * plus buffer.
	 * 
	 * @return the height of a tab.
	 */
	private int getTabHeight() {