Bug 315281 update copyrights for 3.6
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/NewFolderDialog.java
boolean valid = validateFolderName();
		if (valid) {
			IFolder linkHandle = createFolderHandle(folderNameField.getText());
			IStatus status = linkedResourceGroup
					.validateLinkLocation(linkHandle);
			if (status.getSeverity() != IStatus.ERROR) {
				getOkButton().setEnabled(true);
			} else {
				getOkButton().setEnabled(false);
			}
			if (status.isOK() == false) {
				updateStatus(status);
			}
		} else {
			getOkButton().setEnabled(false);
		}
	}
	/**
	 * Checks if the folder name is valid.
	 *
	 * @return null if the new folder name is valid.
	 * 	a message that indicates the problem otherwise.
	 */
	private boolean validateFolderName() {
		String name = folderNameField.getText();
		IWorkspace workspace = container.getWorkspace();
		IStatus nameStatus = workspace.validateName(name, IResource.FOLDER);
		if ("".equals(name)) { 
			updateStatus(IStatus.ERROR,
					IDEWorkbenchMessages.NewFolderDialog_folderNameEmpty);