Bug 93245 [Dialogs] Error messages show up in two locations in the properties dialog
Force an error message: 1) select a Java project 2) open the properties dialog 3) navigate to Java Compiler>Building 4) enable project specific settings 5) enter a letter into the maximum number of problems field ->the error message shows up at the bottom 6) resize the dialog ->the error message also shows up in the banner
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
createTitleArea(titleComposite);
		
		pageContainer = createPageContainer(pageAreaComposite);
		pageContainer.setLayoutData(new GridData(GridData.FILL_BOTH));
		
		Label separator = new Label(pageAreaComposite, SWT.HORIZONTAL
				| SWT.SEPARATOR);
		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
		separator.setLayoutData(gd);
		return composite;
	}
	/**
	 * Create the sash with right control on the right. Note 
	 * that this method assumes GridData for the layout data
	 * of the rightControl.
	 * @param composite
	 * @param rightControl
	 * @return Sash
	 * 
	 * @since 3.1
	 */
	protected Sash createSash(final Composite composite, final Control rightControl) {
		final Sash sash = new Sash(composite, SWT.VERTICAL);
		sash.setLayoutData(new GridData(GridData.FILL_VERTICAL));
		
		
		sash.addListener(SWT.Selection, new Listener() {
			/*
			 * (non-Javadoc)
			 *