[bugfix] Reference nodes in the in-memory DOM (Memtree) should be transparent to the org.w3c.dom API

Closes eXist-db/exist#5682

Author: adamretter

exist-core/pom.xml

@@ -1,4 +1,28 @@
 /*
+ * Elemental
+ * Copyright (C) 2024, Evolved Binary Ltd
+ *
+ * [email protected]
+ * https://www.evolvedbinary.com | https://www.elemental.xyz
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; version 2.1.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * NOTE: Parts of this file contain code from 'The eXist-db Authors'.
+ *       The original license header is included below.
+ *
+ * =====================================================================
+ *
  * eXist-db Open Source Native XML Database
  * Copyright (C) 2001 The eXist-db Authors
  *
@@ -625,8 +649,9 @@ private void writeXML(final DocumentImpl doc, final Receiver receiver) {
                                 receiver.startPrefixMapping(reader.getNamespacePrefix(ni), reader.getNamespaceURI(ni));
                             }
 
-                            final AttrList attribs = new AttrList();
-                            for (int j = 0; j < reader.getAttributeCount(); j++) {
+                            final int attrCount = reader.getAttributeCount();
+                            final AttrList attribs = new AttrList(attrCount);
+                            for (int j = 0; j < attrCount; j++) {
                                 final QName qn = new QName(reader.getAttributeLocalName(j), reader.getAttributeNamespace(j), reader.getAttributePrefix(j));
                                 attribs.addAttribute(qn, reader.getAttributeValue(j));
                             }

exist-core/src/main/java/org/exist/backup/SystemExport.java

@@ -1,4 +1,28 @@
 /*
+ * Elemental
+ * Copyright (C) 2024, Evolved Binary Ltd
+ *
+ * [email protected]
+ * https://www.evolvedbinary.com | https://www.elemental.xyz
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; version 2.1.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * NOTE: Parts of this file contain code from 'The eXist-db Authors'.
+ *       The original license header is included below.
+ *
+ * =====================================================================
+ *
  * eXist-db Open Source Native XML Database
  * Copyright (C) 2001 The eXist-db Authors
  *
@@ -99,7 +123,7 @@ public DOMIndexer(final DBBroker broker, final Txn transaction, final DocumentIm
      */
     public void scan() throws EXistException {
         //Creates a dummy DOCTYPE
-        final DocumentTypeImpl dt = new DocumentTypeImpl((doc != null) ? doc.getExpression() : null, "temp", null, "");
+        final org.exist.dom.persistent.DocumentTypeImpl dt = new org.exist.dom.persistent.DocumentTypeImpl((doc != null) ? doc.getExpression() : null, "temp", null, "");
         targetDoc.setDocumentType(dt);
     }