Updates after code review

Author: dizzzz

exist-core/src/main/java/org/exist/xslt/TransformerFactoryAllocator.java

@@ -92,7 +92,7 @@ public static SAXTransformerFactory getTransformerFactory(final BrokerPool pool)
                     LOG.debug("Set transformer factory: " + transformerFactoryClassName);
                 }
                 final Hashtable<String, Object> attributes = (Hashtable<String, Object>) pool.getConfiguration().getProperty(PROPERTY_TRANSFORMER_ATTRIBUTES);
-                Iterator<String> iterator = attributes.keySet().iterator();
+                final Iterator<String> iterator = attributes.keySet().iterator();
                 while (iterator.hasNext()) {
                     final String name = iterator.next();
                     final Object value = attributes.get(name);

extensions/indexes/spatial/src/main/java/org/exist/indexing/spatial/AbstractGMLJDBCIndex.java

@@ -86,7 +86,7 @@ public void configure(BrokerPool pool, Path dataDir, Element config) throws Data
         super.configure(pool, dataDir, config);
         try {
             checkDatabase();
-        } catch (ClassNotFoundException | SQLException e) {
+        } catch (final ClassNotFoundException | SQLException e) {
             throw new DatabaseConfigurationException(e.getMessage());
         }
     }

extensions/indexes/spatial/src/main/java/org/exist/indexing/spatial/AbstractGMLJDBCIndexWorker.java

@@ -146,7 +146,7 @@ public Object configure(IndexController controller, NodeList configNodes, Map<St
         this.controller = controller;
         Map<String, GMLIndexConfig> map = null;
         for(int i = 0; i < configNodes.getLength(); i++) {
-            Node node = configNodes.item(i);
+            final Node node = configNodes.item(i);
             if (node.getNodeType() == Node.ELEMENT_NODE &&
                     INDEX_ELEMENT.equals(node.getLocalName())) { 
                 map = new TreeMap<>();
@@ -164,7 +164,7 @@ public void setDocument(DocumentImpl document) {
         if (document != null) {
             IndexSpec idxConf = document.getCollection().getIndexConfiguration(getBroker());
             if (idxConf != null) {
-                Map collectionConfig = (Map) idxConf.getCustomIndexSpec(AbstractGMLJDBCIndex.ID);
+                final Map collectionConfig = (Map) idxConf.getCustomIndexSpec(AbstractGMLJDBCIndex.ID);
                 if (collectionConfig != null) {
                     isDocumentGMLAware = true;
                     if (collectionConfig.get(AbstractGMLJDBCIndex.ID) != null)
@@ -514,7 +514,7 @@ public boolean checkIndex(DBBroker broker) {
         try {
             conn = acquireConnection();
             return checkIndex(broker, conn);
-        } catch (SQLException | SpatialIndexException e) {
+        } catch (final SQLException | SpatialIndexException e) {
             LOG.error(e);
             return false;
         } finally {