Bug 55249 [Wizards] Radio button looses selection when page is disabled
20040318 1. Open the new Java project wizard, enter a name 2. In the 'project layout' group, set the upper radio button 3. press 'next', the 'prev' 4. The radio has changed to the lower control This doesn't happen on the MAC
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/JavaProjectWizardFirstPage.java
}
		public void update(Observable o, Object arg) {
			final boolean detect= fDetectGroup.mustDetect();
			fStdRadio.setEnabled(!detect);
			fSrcBinRadio.setEnabled(!detect);
			fGroup.setEnabled(!detect);
		}
		
		public boolean isSrcBin() {
			return fSrcBinRadio.getSelection();
		}
		/* (non-Javadoc)
		 * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
		 */
		public void widgetSelected(SelectionEvent e) {
			if (e.widget == fConfigureButton) {
				PreferencePageSupport.showPreferencePage(getShell(), NewJavaProjectPreferencePage.ID, new NewJavaProjectPreferencePage());
			}
		}
		/* (non-Javadoc)
		 * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
		 */
		public void widgetDefaultSelected(SelectionEvent e) {
		}
	}
	/**
	 * Show a warning when the project location contains files.
	 */
	private final class DetectGroup extends Observable implements Observer {