Fixing XERCESJ-1564: to intern the namespace name of QNames (using th…

…e symbol table) before using it.

git-svn-id: https://svn.apache.org/repos/asf/xerces/java/trunk@1343961 13f79535-47bb-0310-9956-ffa450edef68

src/org/apache/xerces/impl/xs/XMLSchemaValidator.java

@@ -3518,6 +3518,9 @@ else if (ctype.fContentType == XSComplexTypeDecl.CONTENTTYPE_ELEMENT) {
 
     void processRootTypeQName(final javax.xml.namespace.QName rootTypeQName) {
         String rootTypeNamespace = rootTypeQName.getNamespaceURI();
+        // Add namespace to symbol table, to make sure it's interned.
+        // This namespace may be later compared with other values using ==.
+        rootTypeNamespace = fSymbolTable.addSymbol(rootTypeNamespace);
         if (rootTypeNamespace != null && rootTypeNamespace.equals(XMLConstants.NULL_NS_URI)) {
             rootTypeNamespace = null;
         }
@@ -3541,6 +3544,9 @@ void processRootTypeQName(final javax.xml.namespace.QName rootTypeQName) {
 
     void processRootElementDeclQName(final javax.xml.namespace.QName rootElementDeclQName, final QName element) {
         String rootElementDeclNamespace = rootElementDeclQName.getNamespaceURI();
+        // Add namespace to symbol table, to make sure it's interned.
+        // This namespace may be later compared with other values using ==.
+        rootElementDeclNamespace = fSymbolTable.addSymbol(rootElementDeclNamespace);
         if (rootElementDeclNamespace != null && rootElementDeclNamespace.equals(XMLConstants.NULL_NS_URI)) {
             rootElementDeclNamespace = null;
         }