Return the specified class. Checks the ThreadContext classloader first, then uses the System classloader. : Byte Array « File « Java Tutorial

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/*
 * Copyright  2003-2008 The Apache Software Foundation.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
import java.io.InputStream;

/**

 *
 *  @author <a href="mailto:wglass@apache.org">Will Glass-Husain</a>
 *  @version $Id: ClassUtils.java 685685 2008-08-13 21:43:27Z nbubna $
 * @since 1.5
 */
public class Main {
  /**
   * Return the specified class.  Checks the ThreadContext classloader first,
   * then uses the System classloader.  Should replace all calls to
   * <code>Class.forName( claz )</code> (which only calls the System class
   * loader) when the class might be in a different classloader (e.g. in a
   * webapp).
   *
   * @param clazz the name of the class to instantiate
   * @return the requested Class object
   * @throws ClassNotFoundException
   */
  public static Class getClass(String clazz) throws ClassNotFoundException
  {
      /**
       * Use the Thread context classloader if possible
       */
      ClassLoader loader = Thread.currentThread().getContextClassLoader();
      if (loader != null)
      {
          try
          {
              return Class.forName(clazz, true, loader);
          }
          catch (ClassNotFoundException E)
          {
              /**
               * If not found with ThreadContext loader, fall thru to
               * try System classloader below (works around bug in ant).
               */
          }
      }
      /**
       * Thread context classloader isn't working out, so use system loader.
       */
      return Class.forName(clazz);
  }

}