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diff --git a/common/src/test/java/test/at/gv/egovernment/moa/util/XMLGrammarBuilderTest.java b/common/src/test/java/test/at/gv/egovernment/moa/util/XMLGrammarBuilderTest.java
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+/*
+ * Copyright 2003 Federal Chancellery Austria
+ * MOA-ID has been developed in a cooperation between BRZ, the Federal
+ * Chancellery Austria - ICT staff unit, and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+
+
+package test.at.gv.egovernment.moa.util;
+import java.io.FileInputStream;
+import java.io.InputStream;
+
+import org.apache.xerces.parsers.DOMParser;
+import org.apache.xerces.parsers.XMLGrammarPreparser;
+import org.apache.xerces.util.SymbolTable;
+import org.apache.xerces.util.XMLGrammarPoolImpl;
+import org.apache.xerces.xni.grammars.Grammar;
+import org.apache.xerces.xni.grammars.XMLGrammarDescription;
+import org.apache.xerces.xni.parser.XMLInputSource;
+import org.xml.sax.InputSource;
+
+import test.at.gv.egovernment.moa.MOATestCase;
+
+import at.gv.egovernment.moa.util.Constants;
+
+
+/**
+ * Experimentation with Xerces grammar caching.
+ * 
+ * Used the Xerces sample 'XMLGrammarBuilder' as a starting point. 
+ * 
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public class XMLGrammarBuilderTest extends MOATestCase {
+
+  private static final String GRAMMAR_POOL =
+    org.apache.xerces.impl.Constants.XERCES_PROPERTY_PREFIX
+      + org.apache.xerces.impl.Constants.XMLGRAMMAR_POOL_PROPERTY;
+
+  protected static final String NAMESPACES_FEATURE_ID =
+    "http://xml.org/sax/features/namespaces";
+  protected static final String VALIDATION_FEATURE_ID =
+    "http://xml.org/sax/features/validation";
+  protected static final String SCHEMA_VALIDATION_FEATURE_ID =
+    "http://apache.org/xml/features/validation/schema";
+  protected static final String SCHEMA_FULL_CHECKING_FEATURE_ID =
+    "http://apache.org/xml/features/validation/schema-full-checking";
+
+  private static final int BIG_PRIME = 2039;
+  private SymbolTable symbolTable;
+  private XMLGrammarPoolImpl grammarPool;
+
+  /**
+   * Constructor for XMLGrammarBuilderTest.
+   * @param name
+   */
+  public XMLGrammarBuilderTest(String name) {
+    super(name);
+  }
+
+  protected void setUp() throws Exception {
+    XMLGrammarPreparser preparser;
+
+    // set up symbol table and grammar pool
+    symbolTable = new SymbolTable(BIG_PRIME);
+    grammarPool = new XMLGrammarPoolImpl();
+    preparser = new XMLGrammarPreparser(symbolTable);
+    preparser.registerPreparser(XMLGrammarDescription.XML_SCHEMA, null);
+    preparser.setProperty(GRAMMAR_POOL, grammarPool);
+    preparser.setFeature(NAMESPACES_FEATURE_ID, true);
+    preparser.setFeature(VALIDATION_FEATURE_ID, true);
+    // now we can still do schema features just in case, 
+    // so long as it's our configuraiton......
+    preparser.setFeature(SCHEMA_VALIDATION_FEATURE_ID, true);
+    preparseSchemaResource(
+      preparser,
+      Constants.DSIG_SCHEMA_LOCATION,
+      "/resources/schemas/xmldsig-core-schema.xsd");
+  }
+
+  private static Grammar preparseSchemaResource(
+    XMLGrammarPreparser preparser,
+    String systemId,
+    String resource)
+    throws Exception {
+
+    InputStream is = XMLGrammarBuilderTest.class.getResourceAsStream(resource);
+    return preparser.preparseGrammar(
+      XMLGrammarDescription.XML_SCHEMA,
+      new XMLInputSource(null, systemId, null, is, null));
+  }
+
+  public void testParseValidating() throws Exception {
+    DOMParser parser = new DOMParser(symbolTable, grammarPool);
+
+    parser.setFeature(NAMESPACES_FEATURE_ID, true);
+    parser.setFeature(VALIDATION_FEATURE_ID, true);
+    parser.setFeature(SCHEMA_VALIDATION_FEATURE_ID, true);
+
+    parser.parse(
+      new InputSource(
+        new FileInputStream(TESTDATA_ROOT + "xml/dsigTransform/base64.xml")));
+    parser.getDocument();
+  }
+
+}