diff --git a/sharding-proxy/src/main/java/io/shardingsphere/proxy/backend/jdbc/datasource/JDBCXABackendDataSourceFactory.java b/sharding-proxy/src/main/java/io/shardingsphere/proxy/backend/jdbc/datasource/JDBCXABackendDataSourceFactory.java
index bfae3b9556390..bc8e326cf1b45 100644
--- a/sharding-proxy/src/main/java/io/shardingsphere/proxy/backend/jdbc/datasource/JDBCXABackendDataSourceFactory.java
+++ b/sharding-proxy/src/main/java/io/shardingsphere/proxy/backend/jdbc/datasource/JDBCXABackendDataSourceFactory.java
@@ -39,18 +39,17 @@ public final class JDBCXABackendDataSourceFactory implements JDBCBackendDataSour
     public DataSource build(final String dataSourceName, final DataSourceParameter dataSourceParameter) throws Exception {
         XATransactionManager xaTransactionManager = (XATransactionManager) ShardingTransactionManagerRegistry.getInstance().getShardingTransactionManager(TransactionType.XA);
         Class<XADataSource> xaDataSourceClass = loadClass(XA_DRIVER_CLASS_NAME);
-        XADataSource xaDataSource = xaDataSourceClass.newInstance();
-        return xaTransactionManager.wrapDataSource(xaDataSource, dataSourceName, dataSourceParameter);
+        return xaTransactionManager.wrapDataSource(xaDataSourceClass.newInstance(), dataSourceName, dataSourceParameter);
     }
 
-    private <T> Class<T> loadClass(String className) throws ClassNotFoundException {
-        Class clazz;
-
+    @SuppressWarnings("unchecked")
+    private <T> Class<T> loadClass(final String className) throws ClassNotFoundException {
+        Class result;
         try {
-            clazz = Thread.currentThread().getContextClassLoader().loadClass(className);
-        } catch (ClassNotFoundException e) {
-            clazz = Class.forName(className);
+            result = Thread.currentThread().getContextClassLoader().loadClass(className);
+        } catch (final ClassNotFoundException ignored) {
+            result = Class.forName(className);
         }
-        return clazz;
+        return result;
     }
 }
diff --git a/sharding-transaction/src/main/java/io/shardingsphere/transaction/manager/xa/atomikos/AtomikosTransactionManager.java b/sharding-transaction/src/main/java/io/shardingsphere/transaction/manager/xa/atomikos/AtomikosTransactionManager.java
index 91a6a01bf87a9..0940722d44692 100644
--- a/sharding-transaction/src/main/java/io/shardingsphere/transaction/manager/xa/atomikos/AtomikosTransactionManager.java
+++ b/sharding-transaction/src/main/java/io/shardingsphere/transaction/manager/xa/atomikos/AtomikosTransactionManager.java
@@ -95,10 +95,10 @@ public DataSource wrapDataSource(final XADataSource xaDataSource, final String d
         result.setUniqueResourceName(dataSourceName);
         result.setMaxPoolSize(dataSourceParameter.getMaximumPoolSize());
         result.setTestQuery("SELECT 1");
-        Properties properties = getXAProperties(dataSourceParameter);
-        PropertyUtils.setProperties(xaDataSource, properties);
+        Properties xaProperties = getXAProperties(dataSourceParameter);
+        PropertyUtils.setProperties(xaDataSource, xaProperties);
         result.setXaDataSource(xaDataSource);
-        result.setXaProperties(properties);
+        result.setXaProperties(xaProperties);
         return result;
     }