1 /*
   2  * Copyright (c) 2014, 2016, 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 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.Listeners;
  35 import org.testng.annotations.Test;
  36 import org.xml.sax.InputSource;
  37 
  38 /*
  39  * @bug 4992788
  40  * @summary Test XPath.evaluate(expression,source,returnType) throws NPE if source is null.
  41  */
  42 @Listeners({jaxp.library.BasePolicy.class})
  43 public class Bug4992788 {
  44 
  45     private static String expression = "/widgets/widget[@name='a']/@quantity";
  46 
  47     // test for XPath.evaluate(java.lang.String expression, InputSource source)
  48     // - default returnType is String
  49     // source is null , should throw NPE
  50     @Test
  51     public void testXPath23() throws Exception {
  52         try {
  53             createXPath().evaluate(expression, (InputSource) null);
  54             Assert.fail();
  55         } catch (NullPointerException e) {
  56             ; // as expected
  57         }
  58     }
  59 
  60     // test for XPath.evaluate(java.lang.String expression, InputSource source,
  61     // QName returnType)
  62     // source is null , should throw NPE
  63     @Test
  64     public void testXPath28() throws Exception {
  65         try {
  66             createXPath().evaluate(expression, (InputSource) null, XPathConstants.STRING);
  67             Assert.fail();
  68         } catch (NullPointerException e) {
  69             ; // as expected
  70         }
  71     }
  72 
  73     private XPath createXPath() throws XPathFactoryConfigurationException {
  74         XPathFactory xpathFactory = XPathFactory.newInstance();
  75         Assert.assertNotNull(xpathFactory);
  76         XPath xpath = xpathFactory.newXPath();
  77         Assert.assertNotNull(xpath);
  78         return xpath;
  79     }
  80 }