Bug 127723 refactoring history: warn when replacing a jar with an older version
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarimport/JarImportWizardPage.java
}
	/**
	 * {@inheritDoc}
	 */
	public void createControl(final Composite parent) {
		initializeDialogUnits(parent);
		final Composite composite= new Composite(parent, SWT.NONE);
		composite.setLayout(new GridLayout());
		composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));
		createLocationGroup(composite);
		if (fImportWizard)
			createInputGroup(composite);
		createRenameGroup(composite);
		setPageComplete(false);
		if (fImportWizard && !fTreeViewer.getControl().isEnabled())
			setErrorMessage(JarImportMessages.JarImportWizardPage_no_jar_files);
		setControl(composite);
		Dialog.applyDialogFont(composite);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IJavaHelpContextIds.JARIMPORT_WIZARD_PAGE);
	}
	/**
	 * Creates a new grid data.
	 * 
	 * @param flag
	 *            the flags to use
	 * @param hspan
	 *            the horizontal span
	 * @param indent
	 *            the indent
	 * @return the grid data