duke@1: /*
ohair@554:  * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
duke@1:  * published by the Free Software Foundation.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
duke@1:  */
duke@1: 
duke@1: /**
duke@1:  * @test
duke@1:  * @bug 4160204 4234488
duke@1:  * @summary Create empty javadoc comments and verify that javac does not crash.
duke@1:  * @compile EmptyDocComments.java
duke@1:  */
duke@1: 
duke@1: // WARNING: This file intentionally contains whitespace characters at the end of
duke@1: // some lines.  Do not delete them!
duke@1: 
duke@1: // If this file fails to compile, then the test has failed.  The test does not
duke@1: // need to be run.
duke@1: 
duke@1: public class EmptyDocComments
duke@1: {
duke@1:     public static void Main(String [] args)
duke@1:     {
duke@1:     }
duke@1: 
duke@1:     // Verify that empty doc comments don't cause a crash.
duke@1: 
duke@1:     /**
duke@1:      *  */
duke@1:     public static void emptyDocComment0()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains whitespace");
duke@1:         System.out.println("- ends on same line as potential comment");
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      ***/
duke@1:     public static void emptyDocComment1()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains nothing");
duke@1:         System.out.println("- ends on same line as potential comment");
duke@1:     }
duke@1: 
duke@1:     /** */
duke@1:     public static void emptyDocComment2()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains whitespace");
duke@1:         System.out.println("- ends on same line as comment start");
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:       *
duke@1:       */
duke@1:     public static void emptyDocComment3()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains whitespace");
duke@1:         System.out.println("- ends on new line ");
duke@1:     }
duke@1: 
duke@1:     /***/
duke@1:     public static void emptyDocComment4()
duke@1:     {
duke@1:         System.out.println("minimal javadoc comment");
duke@1:         System.out.println("- contains nothing");
duke@1:         System.out.println("- ends on same line as comment start");
duke@1:     }
duke@1: 
duke@1:     /**/
duke@1:     public static void emptyDocComment5()
duke@1:     {
duke@1:         System.out.println("minimal _java_ comment");
duke@1:         System.out.println("- contains nothing");
duke@1:         System.out.println("- ends on same line as comment start");
duke@1:     }
duke@1: 
duke@1:     /** **** */
duke@1:     public static void emptyDocComment6()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains \"*\"");
duke@1:         System.out.println("- ends on same line as comment start");
duke@1:     }
duke@1: 
duke@1:     // Verify that we properly handle very small, non-empty comments.
duke@1: 
duke@1:     /** a */
duke@1:     public static void singleChar0()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains a single character");
duke@1:         System.out.println("- ends on same line as comment start");
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      * a      */
duke@1:     public static void singleChar1()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains a single character and trailing whitespace");
duke@1:         System.out.println("- ends on same line as potential comment");
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      * a
duke@1:      */
duke@1:     public static void singleChar2()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains a single character, no trailing whitespace");
duke@1:         System.out.println("- ends on new line ");
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:        a
duke@1:      */
duke@1:     public static void singleChar3()
duke@1:     {
duke@1:         System.out.println("javadoc comment");
duke@1:         System.out.println("- contains a single character and trailing whitespace");
duke@1:         System.out.println("- ends on new line ");
duke@1:     }
duke@1: }