--- /dev/null	Mon Nov 17 20:06:53 2014
+++ new/test/javax/xml/jaxp/unittest/javax/xml/stream/XMLStreamWriterTest/AttributeEscapeTest.java	Mon Nov 17 20:06:52 2014
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package javax.xml.stream.XMLStreamWriterTest;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/*
+ * @summary Test XMLStreamWriter shall escape the illegal characters.
+ */
+public class AttributeEscapeTest {
+
+    /**
+     * XML content for testing the escaping of <, >, &, ', ".
+     */
+    private static final String XML_CONTENT = "Testing escaping: lt=<, gt=>, amp=&, apos=', dquote=\"";
+
+    @Test
+    public void testCR6420953() {
+
+        try {
+            XMLOutputFactory xof = XMLOutputFactory.newInstance();
+            StringWriter sw = new StringWriter();
+            XMLStreamWriter w = xof.createXMLStreamWriter(sw);
+
+            w.writeStartDocument();
+            w.writeStartElement("element");
+
+            w.writeDefaultNamespace(XML_CONTENT);
+            w.writeNamespace("prefix", XML_CONTENT);
+
+            w.writeAttribute("attribute", XML_CONTENT);
+            w.writeAttribute(XML_CONTENT, "attribute2", XML_CONTENT);
+            w.writeAttribute("prefix", XML_CONTENT, "attribute3", XML_CONTENT);
+
+            w.writeCharacters("\n");
+            w.writeCharacters(XML_CONTENT);
+            w.writeCharacters("\n");
+            w.writeCharacters(XML_CONTENT.toCharArray(), 0, XML_CONTENT.length());
+            w.writeCharacters("\n");
+
+            w.writeEndElement();
+            w.writeEndDocument();
+            w.flush();
+
+            System.out.println(sw);
+
+            // make sure that the generated XML parses
+            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+            dbf.setNamespaceAware(true);
+            dbf.newDocumentBuilder().parse(new InputSource(new StringReader(sw.toString())));
+        } catch (XMLStreamException xmlStreamException) {
+            xmlStreamException.printStackTrace();
+            Assert.fail(xmlStreamException.toString());
+        } catch (SAXException saxException) {
+            saxException.printStackTrace();
+            Assert.fail(saxException.toString());
+        } catch (ParserConfigurationException parserConfigurationException) {
+            parserConfigurationException.printStackTrace();
+            Assert.fail(parserConfigurationException.toString());
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+            Assert.fail(ioException.toString());
+        }
+    }
+}