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 javax.xml.xpath.XPath; 27 import javax.xml.xpath.XPathConstants; 28 import javax.xml.xpath.XPathExpressionException; 29 import javax.xml.xpath.XPathFactory; 30 31 import org.testng.Assert; 32 import org.testng.annotations.Test; 33 import org.w3c.dom.Document; 34 35 36 /* 37 * @bug 4991857 38 * @summary XPath.evaluate(...) throws XPathExpressionException when context is null and expression refers to the context. 39 */ 40 public class Bug4991857 { 41 42 Document d = null; 43 44 XPathFactory xpathFactory = XPathFactory.newInstance(); 45 46 @Test 47 public void testXPath09() throws Exception { 48 try { 49 XPath xpath = xpathFactory.newXPath(); 50 Assert.assertNotNull(xpath); 51 52 Double result = (Double) xpath.evaluate("1+2", d, XPathConstants.NUMBER); 53 } catch (XPathExpressionException unused) { 54 Assert.fail("Unexpected XPathExpressionException thrown"); 55 } 56 } 57 58 @Test 59 public void testXPath10() throws Exception { 60 try { 61 XPath xpath = xpathFactory.newXPath(); 62 Assert.assertNotNull(xpath); 63 64 xpath.evaluate(".", d, XPathConstants.STRING); 65 Assert.fail("XPathExpressionException not thrown"); 66 } catch (XPathExpressionException e) { 67 // Expected exception as context node is null 68 } 69 } 70 71 @Test 72 public void testXPath11() throws Exception { 73 try { 74 Document d = null; 75 76 XPathFactory xpathFactory = XPathFactory.newInstance(); 77 Assert.assertNotNull(xpathFactory); 78 79 XPath xpath = xpathFactory.newXPath(); 80 Assert.assertNotNull(xpath); 81 82 String quantity = (String) xpath.evaluate("/widgets/widget[@name='a']/@quantity", d, XPathConstants.STRING); 83 Assert.fail("XPathExpressionException not thrown"); 84 } catch (XPathExpressionException e) { 85 // Expected exception as context node is null 86 } 87 } 88 }