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/IWizardContainer.java
/**
 * Returns the current wizard page for this container.
 *
 * @return the current wizard page, or <code>null</code> if the container
 *   is not yet showing the wizard
 * @see #showPage
 */
public IWizardPage getCurrentPage();
/**
 * Returns the shell for this wizard container.
 *
 * @return the shell, or <code>null</code> if this wizard
 *   container does not have a shell
 */
public Shell getShell();