AbstractMethodErrorTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.ls.DOMImplementationLS;
import org.w3c.dom.ls.LSSerializer;

class AbstractMethodErrorTest {

    public static void main(String[] args) throws Exception {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document document = builder.newDocument();

        DOMImplementation impl = document.getImplementation();
        DOMImplementationLS implLS = (DOMImplementationLS) impl.getFeature("LS", "3.0");
        LSSerializer dsi = implLS.createLSSerializer();

        /* We should have here incorrect document without getXmlVersion() method:
         * Such Document is generated by replacing the JDK bootclasses with it's
         * own Node,Document and DocumentImpl classes (see run.sh). According to
         * XERCESJ-1007 the AbstractMethodError should be thrown in such case.
         */
        String result = dsi.writeToString(document);
        System.out.println("Result:" + result);
    }

}