[bugfix] Add missing base-uri accessors for in-memory DOM Text and Comment Nodes

Author: adamretter

exist-core/src/main/java/org/exist/dom/memtree/TextImpl.java

@@ -24,8 +24,11 @@
 import org.exist.xquery.Expression;
 import org.exist.xquery.value.Type;
 import org.w3c.dom.DOMException;
+import org.w3c.dom.Node;
 import org.w3c.dom.Text;
 
+import javax.annotation.Nullable;
+
 
 public class TextImpl extends AbstractCharacterData implements Text {
 
@@ -42,6 +45,15 @@ public int getItemType() {
         return Type.TEXT;
     }
 
+    @Override
+    public @Nullable String getBaseURI() {
+        @Nullable final Node parent = getParentNode();
+        if (parent == null) {
+            return null;
+        }
+        return parent.getBaseURI();
+    }
+
     @Override
     public Text splitText(final int offset) throws DOMException {
         return null;

exist-core/src/main/java/org/exist/dom/persistent/CommentImpl.java

@@ -53,6 +53,8 @@
 import org.w3c.dom.Comment;
 import org.w3c.dom.Node;
 
+import javax.annotation.Nullable;
+
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 public class CommentImpl extends AbstractCharacterData<CommentImpl> implements Comment {
@@ -86,6 +88,16 @@ public String toString() {
         return "<!-- " + cdata.toString() + " -->";
     }
 
+    @Override
+    public @Nullable String getBaseURI() {
+        @Nullable final Node parent = getParentNode();
+        if (parent != null) {
+            return parent.getBaseURI();
+        } else {
+            return null;
+        }
+    }
+
     /**
      * Serializes a (persistent DOM) Comment to a byte array
      *