/* * Copyright 2001-2004 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. */   package org.apache.commons.logging;import junit.framework.*;/**  *  * @author Sean C. Sullivan  * @version $Revision:  $  *   */public abstract class AbstractLogTest extends TestCase {    public AbstractLogTest(String testName) {        super(testName);    }        public abstract Log getLogObject();	public void testLoggingWithNullParameters()	{		Log log = this.getLogObject();				assertNotNull(log);				log.debug(null);				log.debug(null, null);				log.debug(log.getClass().getName() + ": debug statement");				log.debug(log.getClass().getName() + ": debug statement w/ null exception", new RuntimeException());				log.error(null);				log.error(null, null);				log.error(log.getClass().getName() + ": error statement");				log.error(log.getClass().getName() + ": error statement w/ null exception", new RuntimeException());				log.fatal(null);				log.fatal(null, null);				log.fatal(log.getClass().getName() + ": fatal statement");				log.fatal(log.getClass().getName() + ": fatal statement w/ null exception", new RuntimeException());				log.info(null);				log.info(null, null);				log.info(log.getClass().getName() + ": info statement");				log.info(log.getClass().getName() + ": info statement w/ null exception", new RuntimeException());				log.trace(null);				log.trace(null, null);				log.trace(log.getClass().getName() + ": trace statement");				log.trace(log.getClass().getName() + ": trace statement w/ null exception", new RuntimeException());				log.warn(null);				log.warn(null, null);				log.warn(log.getClass().getName() + ": warn statement");				log.warn(log.getClass().getName() + ": warn statement w/ null exception", new RuntimeException());	}    }