1 /*
   2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package javax.xml.xpath;
  25 
  26 import javax.xml.parsers.SAXParser;
  27 import javax.xml.parsers.SAXParserFactory;
  28 import javax.xml.xpath.XPath;
  29 import javax.xml.xpath.XPathConstants;
  30 import javax.xml.xpath.XPathFactory;
  31 import javax.xml.xpath.XPathFactoryConfigurationException;
  32 
  33 import org.testng.Assert;
  34 import org.testng.annotations.Test;
  35 import org.xml.sax.InputSource;
  36 
  37 /*
  38  * @bug 4992788
  39  * @summary Test XPath.evaluate(expression,source,returnType) throws NPE if source is null.
  40  */
  41 public class Bug4992788 {
  42 
  43     private static String expression = "/widgets/widget[@name='a']/@quantity";
  44 
  45     // test for XPath.evaluate(java.lang.String expression, InputSource source)
  46     // - default returnType is String
  47     // source is null , should throw NPE
  48     @Test
  49     public void testXPath23() throws Exception {
  50         try {
  51             createXPath().evaluate(expression, (InputSource) null);
  52             Assert.fail();
  53         } catch (NullPointerException e) {
  54             ; // as expected
  55         }
  56     }
  57 
  58     // test for XPath.evaluate(java.lang.String expression, InputSource source,
  59     // QName returnType)
  60     // source is null , should throw NPE
  61     @Test
  62     public void testXPath28() throws Exception {
  63         try {
  64             createXPath().evaluate(expression, (InputSource) null, XPathConstants.STRING);
  65             Assert.fail();
  66         } catch (NullPointerException e) {
  67             ; // as expected
  68         }
  69     }
  70 
  71     private XPath createXPath() throws XPathFactoryConfigurationException {
  72         XPathFactory xpathFactory = XPathFactory.newInstance();
  73         Assert.assertNotNull(xpathFactory);
  74         XPath xpath = xpathFactory.newXPath();
  75         Assert.assertNotNull(xpath);
  76         return xpath;
  77     }
  78 }