8207760: SAXException: Invalid UTF-16 surrogate detected: d83c ?

Summary: Add JDK8207760.java jtreg test.
Reviewed-by: lancea, dfuchs

test/javax/xml/jaxp/transform/8207760/JDK8207760.java

+/*
+ * Copyright (c) 2018, 2019, 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.
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.nio.charset.StandardCharsets;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.testng.Assert;
+import org.testng.annotations.Listeners;
+import org.testng.annotations.Test;
+import java.util.Random;
+import javax.xml.transform.OutputKeys;
+import org.testng.annotations.DataProvider;
+
+/*
+ * @test
+ * @run testng/othervm JDK8207760
+ * @summary Verifies that a surrogate pair at the edge of a buffer is properly handled
+ * @bug 8207760
+ */
+public class JDK8207760 {
+    final String xsl8207760 =
+        "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">\n" +
+        "    <xsl:output omit-xml-declaration=\"yes\" indent=\"no\" />\n" +
+        "\n" +
+        "    <xsl:template match=\"node()|@*\">\n" +
+        "        <xsl:copy>\n" +
+        "            <xsl:apply-templates select=\"node()|@*\" />\n" +
+        "        </xsl:copy>\n" +
+        "    </xsl:template>\n" +
+        "</xsl:stylesheet>\n";
+
+    final String xsl8207760_2 = "<xsl:stylesheet \n" +
+        "  version=\"1.0\" \n" +
+        "  xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">\n" +
+        "\n" +
+        "  <xsl:output method=\"xml\" indent=\"no\" cdata-section-elements=\"source\"/>\n" +
+        "\n" +
+        "  <xsl:template match=\"source\">\n" +
+                "        <xsl:copy>\n" +
+                "            <xsl:apply-templates select=\"node()\" />\n" +
+                "        </xsl:copy>\n" +
+        "  </xsl:template>\n" +
+        "\n" +
+        "</xsl:stylesheet>";
+
+    final String xsl8207760_3 = "<xsl:stylesheet \n" +
+        "  version=\"1.0\" \n" +
+        "  xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">\n" +
+        "\n" +
+        "  <xsl:output method=\"xml\" indent=\"no\" cdata-section-elements=\"source\"/>\n" +
+        "\n" +
+        "  <xsl:template match=\"source\">\n" +
+        "    <xsl:copy>\n" +
+        "      <!-- Copy the attributes -->\n" +
+        "      <xsl:apply-templates select=\"@*\"/>\n" +
+        "      <!-- Convert the contained nodes (elements and text) into text -->\n" +
+        "      <xsl:variable name=\"subElementsText\">\n" +
+        "        <xsl:apply-templates select=\"node()\"/>\n" +
+        "      </xsl:variable>\n" +
+        "      <!-- Output the XML directive and the converted nodes -->\n" +
+        "      <xsl:value-of select=\"$subElementsText\"/>\n" +
+        "    </xsl:copy>\n" +
+        "  </xsl:template>\n" +
+        "\n" +
+        "</xsl:stylesheet>";
+
+    @DataProvider(name = "xsls")
+    public Object[][] getDataBug8207760_cdata() {
+        return new Object[][]{
+            {xsl8207760_2},
+            {xsl8207760_3},
+        };
+    }
+
+    /*
+     * @bug 8207760
+     * Verifies that a surrogate pair at the edge of a buffer is properly handled
+     * when serializing into a Character section.
+     */
+    @Test
+    public final void testBug8207760() throws Exception {
+        String[] xmls = prepareXML(false);
+        Transformer t = createTransformerFromInputstream(
+                new ByteArrayInputStream(xsl8207760.getBytes(StandardCharsets.UTF_8)));
+        t.setOutputProperty(OutputKeys.ENCODING, StandardCharsets.UTF_8.name());
+        StringWriter sw = new StringWriter();
+        t.transform(new StreamSource(new StringReader(xmls[0])), new StreamResult(sw));
+        Assert.assertEquals(sw.toString().replaceAll(System.lineSeparator(), "\n"), xmls[1]);
+    }
+
+    /*
+     * @bug 8207760
+     * Verifies that a surrogate pair at the edge of a buffer is properly handled
+     * when serializing into a CDATA section.
+     */
+    @Test(dataProvider = "xsls")
+    public final void testBug8207760_cdata(String xsl) throws Exception {
+        String[] xmls = prepareXML(true);
+        Transformer t = createTransformerFromInputstream(
+                new ByteArrayInputStream(xsl.getBytes(StandardCharsets.UTF_8)));
+        t.setOutputProperty(OutputKeys.ENCODING, StandardCharsets.UTF_8.name());
+        StringWriter sw = new StringWriter();
+        t.transform(new StreamSource(new StringReader(xmls[0])), new StreamResult(sw));
+        Assert.assertEquals(sw.toString().replaceAll(System.lineSeparator(), "\n"), xmls[1]);
+    }
+
+    private String[] prepareXML(boolean cdata) {
+        String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><source>";
+        if (cdata) {
+            xml += "<![CDATA[";
+        }
+        String tail = "abc 123 </source>";
+        if (cdata) {
+            tail = "abc 123 ]]></source>";
+        }
+        String temp = generateString(1023);
+        xml = xml + temp + '\uD83C' + '\uDF42' + tail;
+        //xml = xml + temp + tail;
+        String expected = (!cdata) ? "<source>" + temp + "&#127810;" + tail
+                : xml;
+
+        return new String[]{xml, expected};
+    }
+
+    static final char[] CHARS = "abcdefghijklmnopqrstuvwxyz \n".toCharArray();
+    StringBuilder sb = new StringBuilder(1024 << 4);
+    Random random = new Random();
+
+    private String generateString(int size) {
+        sb.setLength(0);
+        for (int i = 0; i < size; i++) {
+            char c = CHARS[random.nextInt(CHARS.length)];
+            sb.append(c);
+        }
+
+        return sb.toString();
+    }
+
+    private Transformer createTransformerFromInputstream(InputStream xslStream)
+            throws TransformerException {
+        return TransformerFactory.newInstance().newTransformer(new StreamSource(xslStream));
+    }
+}