1 /* 2 * Copyright (c) 2014, 2015, 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 java.io.StringReader; 27 28 import javax.xml.parsers.SAXParser; 29 import javax.xml.parsers.SAXParserFactory; 30 import javax.xml.xpath.XPath; 31 import javax.xml.xpath.XPathConstants; 32 import javax.xml.xpath.XPathFactory; 33 import javax.xml.xpath.XPathFactoryConfigurationException; 34 35 import org.testng.Assert; 36 import org.testng.annotations.Test; 37 import org.xml.sax.InputSource; 38 39 /* 40 * @bug 4992793 41 * @summary Test XPath.evaluate(expression,source,returnType) throws NPE if expression is null. 42 */ 43 public class Bug4992793 { 44 45 46 // test for XPath.evaluate(java.lang.String expression, InputSource source) 47 // - default returnType is String 48 // source is null , should throw NPE 49 @Test 50 public void testXPath24() throws Exception { 51 try { 52 createXPath().evaluate(null, new InputSource(new StringReader("<root/>"))); 53 Assert.fail(); 54 } catch (NullPointerException e) { 55 ; // as expected 56 } 57 } 58 59 // test for XPath.evaluate(java.lang.String expression, InputSource source, 60 // QName returnType) 61 // source is null , should throw NPE 62 @Test 63 public void testXPath29() throws Exception { 64 try { 65 createXPath().evaluate(null, new InputSource(new StringReader("<root/>")), XPathConstants.STRING); 66 Assert.fail(); 67 } catch (NullPointerException e) { 68 ; // as expected 69 } 70 } 71 72 private XPath createXPath() throws XPathFactoryConfigurationException { 73 XPathFactory xpathFactory = XPathFactory.newInstance(); 74 Assert.assertNotNull(xpathFactory); 75 XPath xpath = xpathFactory.newXPath(); 76 Assert.assertNotNull(xpath); 77 return xpath; 78 } 79 }