8073872: Schemagen fails with StackOverflowError if element references containing class

Reviewed-by: lancea

test/javax/xml/bind/jxc/8073872/Foo.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.
+ */
+
+import java.util.ArrayList;
+import java.util.List;
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlType;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+@XmlType(name = "", propOrder = {"fooObject"})
+@XmlRootElement(name = "Foo")
+
+public class Foo {
+
+    protected List<Foo> fooObject;
+
+    public List<Foo> getFooObject() {
+        if (fooObject == null) {
+            fooObject = new ArrayList<Foo>();
+        }
+        return this.fooObject;
+    }
+}

test/javax/xml/bind/jxc/8073872/SchemagenStackOverflow.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 8073872
+ * @summary test that stackoverflow is not observable when element
+ *          references containing class
+ * @compile Foo.java
+ * @run testng/othervm SchemagenStackOverflow
+ */
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.stream.Collectors;
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.SchemaOutputResolver;
+import javax.xml.transform.Result;
+import javax.xml.transform.stream.StreamResult;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+public class SchemagenStackOverflow {
+
+    @Test
+    public void schemagenStackOverflowTest() throws Exception {
+        // Create new instance of JAXB context
+        JAXBContext context = JAXBContext.newInstance(Foo.class);
+        context.generateSchema(new TestOutputResolver());
+
+        // Read schema content from file
+        String content = Files.lines(resultSchemaFile).collect(Collectors.joining(""));
+        System.out.println("Generated schema content:" + content);
+
+        // Check if schema was generated: check class and list object names
+        Assert.assertTrue(content.contains("name=\"Foo\""));
+        Assert.assertTrue(content.contains("name=\"fooObject\""));
+    }
+
+    // Schemagen output resolver
+    class TestOutputResolver extends SchemaOutputResolver {
+        @Override
+        public Result createOutput(String namespaceUri, String fileName)
+                throws IOException {
+            return new StreamResult(resultSchemaFile.toFile());
+        }
+    }
+
+    // Schemagen output file name and path
+    static final String SCHEMA_FILENAME = "generatedSchema.xsd";
+    Path resultSchemaFile = Paths.get(System.getProperty("user.dir", "."))
+            .resolve(SCHEMA_FILENAME);
+
+}