@@ -0,0 +1,1660 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements. See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership. The ASF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License. You may obtain a copy of the License at%0A *%0A * http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing,%0A * software distributed under the License is distributed on an%0A * %22AS IS%22 BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY%0A * KIND, either express or implied. See the License for the%0A * specific language governing permissions and limitations%0A * under the License.%0A */%0Apackage org.apache.webbeans.util;%0A%0A/**%0A * a few static string utility methods%0A */%0Apublic final class StringUtil%0A%7B%0A    private StringUtil()%0A    %7B%0A        // private utility class ct%0A    %7D%0A%0A    /**%0A     * @return %7B@code true%7D if the given string is either %7B@code null%7D or an empty string%0A     */%0A    public static boolean isEmpty(String val)%0A    %7B%0A        return val == null %7C%7C val.length() == 0;%0A    %7D%0A%0A    /**%0A     * @return %7B@code true%7D if the given string is not null and has a content%0A     */%0A    public static boolean isNotEmpty(String val)%0A    %7B%0A        return val != null && val.length() %3E 0;%0A    %7D%0A%0A    /**%0A     * @return %7B@code true%7D if the given string is either %7B@code null%7D or an empty or blank string%0A     */%0A    public static boolean isBlank(String val)%0A    %7B%0A        return val == null %7C%7C val.length() == 0 %7C%7C val.trim().length() == 0;%0A    %7D%0A%7D%0A

add a simple StringUtil with static helpers