Bug 58985 [Dialogs] WizardDialog.getButton( IDialogConstants.CANCLE_ID ) always returns null
Here's a test case for this bug. Watch the stdout of the program. --WizardDialogBug import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.wizard.IWizard; import org.eclipse.jface.wizard.Wizard; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class WizardDialogBug { public static void main(String[] args) { WizardDialogBug wizardDialogBug = new WizardDialogBug(); wizardDialogBug.run(); } public void run() { Display display = new Display(); Shell shell = new Shell( display, SWT.NONE ); TestWizard wizard = new TestWizard(); TestWizardDialog dialog = new TestWizardDialog( shell, wizard ); dialog.setBlockOnOpen( false ); dialog.open(); while( !shell.isDisposed() ) if( !display.readAndDispatch() ) display.sleep(); display.dispose(); } // test WizardPage public class TestWizardPage extends WizardPage { public TestWizardPage() { super( "TestWizardPage" ); } public void createControl(Composite parent) { Button b = new Button( parent, SWT.PUSH ); b.setText( "Button" ); setControl( b ); } } // test Wizard public class TestWizard extends Wizard { public TestWizard() { super(); setWindowTitle( "TestWizard" ); } public void addPages() { addPage( new TestWizardPage() ); } public boolean performFinish() { return false; } } // test WizardDialog public class TestWizardDialog extends WizardDialog { public TestWizardDialog( Shell shell, IWizard wizard ) { super( shell, wizard ); } public int open() { int rc = super.open(); // by now, all controls should have been created; System.out.println( getButton( IDialogConstants.FINISH_ID ) ); System.out.println( getButton( IDialogConstants.CANCEL_ID ) ); return rc; } } }
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
}
		};
	}
	
	/**
	 * Set the blocked handler used by all WizardDialogs
	 * in the Workspace.
	 * @param handler
	 */
	public static void setBlockedHandler(IWizardBlockedHandler handler){
		blockedHandler = handler;
	}
	
	/**
	 * About to start a long running operation tiggered through
	 * the wizard. Shows the progress monitor and disables the wizard's
	 * buttons and controls.
	 *
	 * @param enableCancelButton <code>true</code> if the Cancel button should
	 *   be enabled, and <code>false</code> if it should be disabled
	 * @return the saved UI state
	 */
	private Object aboutToStart(boolean enableCancelButton) {
		Map savedState = null;
		if (getShell() != null) {
			
			Control focusControl = getShell().getDisplay().getFocusControl();
			if (focusControl != null && focusControl.getShell() != getShell())
				focusControl = null;
			boolean needsProgressMonitor = wizard.needsProgressMonitor();