8145039: JAXB marshaller fails with ClassCastException on classes generated by xjc

Reviewed-by: lancea

test/TEST.groups

@@ -352,7 +352,8 @@ needs_jdk = \
   javax/xml/bind/jxc \
   javax/xml/ws/8033113 \
   javax/xml/ws/clientjar/TestWsImport.java \
-  javax/xml/ws/ebcdic
+  javax/xml/ws/ebcdic \
+  javax/xml/bind/xjc/8145039/JaxbMarshallTest.java
 
 # JRE adds further tests to compact3
 #

test/javax/xml/bind/xjc/8145039/JaxbMarshallTest.java

+/*
+ * Copyright (c) 2016, 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.
+ */
+
+/*
+ * @test
+ * @bug 8145039
+ * @summary Check that marshalling of xjc generated class doesn't throw
+ *          ClassCast exception.
+ * @library /lib/testlibrary
+ * @run testng/othervm JaxbMarshallTest
+ */
+
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
+import java.util.Arrays;
+import java.util.List;
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Marshaller;
+import jdk.testlibrary.JDKToolLauncher;
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.Test;
+
+public class JaxbMarshallTest {
+
+    @BeforeTest
+    public void setUp() throws IOException {
+        // Create test directory inside scratch
+        testWorkDir = Paths.get(System.getProperty("user.dir", "."));
+        // Save its URL
+        testWorkDirUrl = testWorkDir.toUri().toURL();
+        // Get test source directory path
+        testSrcDir = Paths.get(System.getProperty("test.src", "."));
+        // Get path of xjc result folder
+        xjcResultDir = testWorkDir.resolve(TEST_PACKAGE);
+        // Copy schema document file to scratch directory
+        Files.copy(testSrcDir.resolve(XSD_FILENAME), testWorkDir.resolve(XSD_FILENAME), REPLACE_EXISTING);
+    }
+
+
+    /*
+     * Test does the following steps to reproduce problem reported by 8145039:
+     * 1. Copy test schema to JTREG scratch folder
+     * 2. Run xjc on test schema file
+     * 3. Compile generated java files with test javac
+     * 4. Marshall the new list instance to ensure that
+     *    ClassCastException is not thrown
+     */
+    @Test
+    public void marshallClassCastExceptionTest() throws Exception {
+        JAXBContext jaxbContext;
+        Marshaller marshaller;
+        URLClassLoader jaxbContextClassLoader;
+        // Generate java classes by xjc
+        runXjc(XSD_FILENAME);
+        // Compile xjc generated java files
+        compileXjcGeneratedClasses();
+
+        // Create JAXB context based on xjc generated package.
+        // Need to create URL class loader ot make compiled classes discoverable
+        // by JAXB context
+        jaxbContextClassLoader = URLClassLoader.newInstance(new URL[] {testWorkDirUrl});
+        jaxbContext = JAXBContext.newInstance( TEST_PACKAGE, jaxbContextClassLoader);
+
+        // Create instance of Xjc generated data type.
+        // Java classes were compiled during the test execution hence reflection
+        // is needed here
+        Class classLongListClass = jaxbContextClassLoader.loadClass(TEST_CLASS);
+        Object objectLongListClass = classLongListClass.newInstance();
+        // Get 'getIn' method object
+        Method getInMethod = classLongListClass.getMethod( GET_LIST_METHOD, (Class [])null );
+        // Invoke 'getIn' method
+        List<Long> inList = (List<Long>)getInMethod.invoke(objectLongListClass);
+        // Add values into the jaxb object list
+        inList.add(Long.valueOf(0));
+        inList.add(Long.valueOf(43));
+        inList.add(Long.valueOf(1000000123));
+
+        // Marshall constructed complex type variable to standard output.
+        // In case of failure the ClassCastException will be thrown
+        marshaller = jaxbContext.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        marshaller.marshal(objectLongListClass, System.out);
+    }
+
+    // Compile schema file into java classes definitions
+    void runXjc(String xsdFileName) throws Exception {
+        // Prepare process builder to run schemagen tool and save its output
+        JDKToolLauncher xjcLauncher = JDKToolLauncher.createUsingTestJDK("xjc");
+        xjcLauncher.addToolArg(xsdFileName);
+        System.out.println("Executing xjc command: " + Arrays.asList(xjcLauncher.getCommand()));
+        ProcessBuilder pb = new ProcessBuilder(xjcLauncher.getCommand());
+        // Set xjc work directory with the input java file
+        pb.directory(testWorkDir.toFile());
+        pb.inheritIO();
+        Process p = pb.start();
+        p.waitFor();
+        p.destroy();
+    }
+
+    // Compile java classes with javac tool
+    void compileXjcGeneratedClasses() throws Exception {
+        JDKToolLauncher javacLauncher = JDKToolLauncher.createUsingTestJDK("javac");
+        javacLauncher.addToolArg(xjcResultDir.resolve("ObjectFactory.java").toString());
+        javacLauncher.addToolArg(xjcResultDir.resolve("TypesLongList.java").toString());
+        javacLauncher.addToolArg(xjcResultDir.resolve("package-info.java").toString());
+        System.out.println("Compiling xjc generated classes: " + Arrays.asList(javacLauncher.getCommand()));
+        ProcessBuilder pb = new ProcessBuilder(javacLauncher.getCommand());
+        pb.inheritIO();
+        pb.directory(testWorkDir.toFile());
+        Process p = pb.start();
+        p.waitFor();
+        p.destroy();
+    }
+
+    // Test schema filename
+    static final String XSD_FILENAME = "testSchema.xsd";
+    // Package of java classes generated by xjc
+    static final String TEST_PACKAGE = "testns_package";
+    // Name of generated java class
+    static final String TEST_CLASS = TEST_PACKAGE+".TypesLongList";
+    // Method to get the list from xjc generated class
+    static final String GET_LIST_METHOD = "getIn";
+    // Test working directory
+    Path testWorkDir;
+    // Test working directory URL
+    URL testWorkDirUrl;
+    // Directory with test src
+    Path testSrcDir;
+    // Directory with java files generated by xjc
+    Path xjcResultDir;
+}

test/javax/xml/bind/xjc/8145039/testSchema.xsd

+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+            xmlns:tns="http://testns_package"
+            xmlns:jaxb="http://java.sun.com/xml/ns/jaxb" jaxb:version="2.0"
+            targetNamespace="http://testns_package">
+    <!-- Simple type list -->
+    <xsd:simpleType name="LongList">
+        <xsd:list>
+            <xsd:simpleType>
+                <xsd:restriction base="xsd:unsignedInt"/>
+            </xsd:simpleType>
+        </xsd:list>
+    </xsd:simpleType>
+    <!--- Complex test type -->
+    <xsd:element name="typesLongList">
+        <xsd:complexType>
+            <xsd:sequence>
+                <xsd:element name="in" type="tns:LongList"/>
+            </xsd:sequence>
+        </xsd:complexType>
+    </xsd:element>
+</xsd:schema>