Bug 29163 SafeRunnable needs to be accessible in JFace
We need to be able to access the SafeRunnable in JFace in order that some error protection can be added to preferences and properties dialogs.
bundles/org.eclipse.ui.workbench/extensions/org/eclipse/jface/wizard/Wizard.java
if (!((IWizardPage)pages.get(i)).isPageComplete())
			return false;
	}
	return true;
}
/**
 * The <code>Wizard</code> implementation of this <code>IWizard</code>
 * method creates all the pages controls using <code>IDialogPage.createControl</code>.
 * Subclasses should reimplement this method if they want to delay creating
 * one or more of the pages lazily. The framework ensures that the contents
 * of a page will be created before attempting to show it.
 */
public void createPageControls(Composite pageContainer) {
	
	for (int i = 0; i < pages.size(); i++){
		IWizardPage page = (IWizardPage)pages.get(i);
		page.createControl(pageContainer);
		
		
		Assert.isNotNull(page.getControl());
	}
}
/**
 * The <code>Wizard</code> implementation of this <code>IWizard</code>
 * method disposes all the pages controls using <code>DialogPage.dispose</code>.
 * Subclasses should extend this method if the wizard instance maintains
 * addition SWT resource that need to be disposed.
 */
public void dispose() {