Bug 55056 [Workbench] would like to establish my workspace (and no longer be prompted)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEApplication.java
* 
	 * @param create
	 *            If the directory and file does not exist this parameter
	 *            controls whether it will be created.
	 * @return An url to the file or null if the version file does not exist or
	 *         could not be created.
	 */
	private static File getVersionFile(URL workspaceUrl, boolean create) {
		if (workspaceUrl == null)
			return null;
		try {
			
			URL metaUrl = new URL(workspaceUrl, METADATA_FOLDER);
			File metaDir = new File(metaUrl.getFile());
			if (!metaDir.exists() && (!create || !metaDir.mkdir()))
				return null;
			
			URL versionUrl = new URL(metaDir.toURL(), VERSION_FILENAME);
			File versionFile = new File(versionUrl.getFile());
			if (!versionFile.exists()
					&& (!create || !versionFile.createNewFile()))
				return null;
			return versionFile;
		} catch (IOException e) {
			
			return null;
		}
	}
}