diff --git a/pom.xml b/pom.xml
index aeec50adef..6b5a4bd6e0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -650,7 +650,7 @@
 		<dependency>
 			<groupId>com.alibaba</groupId>
 			<artifactId>fastjson</artifactId>
-			<version>1.2.36</version>
+			<version>1.2.67</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
diff --git a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelect.java b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelect.java
index 690a715ca4..c0625dc2cd 100644
--- a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelect.java
+++ b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelect.java
@@ -247,9 +247,7 @@ public class SQLSelect extends SQLObjectImpl {
         }
 
         if (this.hints != null) {
-            for (SQLHint hint : this.hints) {
-                x.hints.add(hint);
-            }
+            x.hints.addAll(this.hints);
         }
 
         x.forBrowse = forBrowse;
diff --git a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelectQueryBlock.java b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelectQueryBlock.java
index 033df7524d..3a4cbbb9a2 100644
--- a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelectQueryBlock.java
+++ b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLSelectQueryBlock.java
@@ -166,9 +166,7 @@ public class SQLSelectQueryBlock extends SQLObjectImpl implements SQLSelectQuery
                         SQLInListExpr inListItem = (SQLInListExpr) item;
                         if (inListExpr.getExpr().equals(inListItem.getExpr())) {
                             TreeSet<SQLExpr> set = new TreeSet<SQLExpr>();
-                            for (SQLExpr itemItem : inListItem.getTargetList()) {
-                                set.add(itemItem);
-                            }
+                            set.addAll(inListItem.getTargetList());
 
                             List<SQLExpr> andList = new ArrayList<SQLExpr>();
                             for (SQLExpr exprItem : inListExpr.getTargetList()) {
diff --git a/src/main/java/com/alibaba/druid/sql/builder/SQLSelectBuilder.java b/src/main/java/com/alibaba/druid/sql/builder/SQLSelectBuilder.java
index 60057402b9..5d919b098f 100644
--- a/src/main/java/com/alibaba/druid/sql/builder/SQLSelectBuilder.java
+++ b/src/main/java/com/alibaba/druid/sql/builder/SQLSelectBuilder.java
@@ -47,5 +47,6 @@ public interface SQLSelectBuilder {
 
     SQLSelectBuilder whereOr(String sql);
 
+    @Override
     String toString();
 }
diff --git a/src/main/java/com/alibaba/druid/sql/builder/impl/SQLDeleteBuilderImpl.java b/src/main/java/com/alibaba/druid/sql/builder/impl/SQLDeleteBuilderImpl.java
index 8cbdd19b4e..83ffeb1ca8 100644
--- a/src/main/java/com/alibaba/druid/sql/builder/impl/SQLDeleteBuilderImpl.java
+++ b/src/main/java/com/alibaba/druid/sql/builder/impl/SQLDeleteBuilderImpl.java
@@ -139,6 +139,7 @@ public class SQLDeleteBuilderImpl implements SQLDeleteBuilder {
         return new SQLDeleteStatement();
     }
 
+    @Override
     public String toString() {
         return SQLUtils.toSQLString(stmt, dbType);
     }
diff --git a/src/main/java/com/alibaba/druid/sql/builder/impl/SQLSelectBuilderImpl.java b/src/main/java/com/alibaba/druid/sql/builder/impl/SQLSelectBuilderImpl.java
index 802354e59a..fe7e992ff0 100644
--- a/src/main/java/com/alibaba/druid/sql/builder/impl/SQLSelectBuilderImpl.java
+++ b/src/main/java/com/alibaba/druid/sql/builder/impl/SQLSelectBuilderImpl.java
@@ -81,6 +81,7 @@ public class SQLSelectBuilderImpl implements SQLSelectBuilder {
         return stmt;
     }
 
+    @Override
     public SQLSelectBuilderImpl select(String... columns) {
         SQLSelectQueryBlock queryBlock = getQueryBlock();
 
@@ -267,6 +268,7 @@ public class SQLSelectBuilderImpl implements SQLSelectBuilder {
         return new SQLSelectGroupByClause();
     }
 
+    @Override
     public String toString() {
         return SQLUtils.toSQLString(stmt, dbType);
     }
diff --git a/src/main/java/com/alibaba/druid/sql/builder/impl/SQLUpdateBuilderImpl.java b/src/main/java/com/alibaba/druid/sql/builder/impl/SQLUpdateBuilderImpl.java
index 26b0dc81f2..08b002beef 100644
--- a/src/main/java/com/alibaba/druid/sql/builder/impl/SQLUpdateBuilderImpl.java
+++ b/src/main/java/com/alibaba/druid/sql/builder/impl/SQLUpdateBuilderImpl.java
@@ -119,6 +119,7 @@ public class SQLUpdateBuilderImpl extends SQLBuilderImpl implements SQLUpdateBui
         return this;
     }
 
+    @Override
     public SQLUpdateBuilderImpl set(String... items) {
         SQLUpdateStatement update = getSQLUpdateStatement();
         for (String item : items) {
@@ -178,6 +179,7 @@ public class SQLUpdateBuilderImpl extends SQLBuilderImpl implements SQLUpdateBui
         return new SQLUpdateStatement();
     }
     
+    @Override
     public String toString() {
         return SQLUtils.toSQLString(stmt, dbType);
     }
diff --git a/src/main/java/com/alibaba/druid/util/OracleUtils.java b/src/main/java/com/alibaba/druid/util/OracleUtils.java
index 7ac4a9699e..8a1c49a9fb 100644
--- a/src/main/java/com/alibaba/druid/util/OracleUtils.java
+++ b/src/main/java/com/alibaba/druid/util/OracleUtils.java
@@ -38,6 +38,7 @@ import com.alibaba.druid.support.logging.LogFactory;
 import oracle.jdbc.OracleConnection;
 import oracle.jdbc.OracleResultSet;
 import oracle.jdbc.OracleStatement;
+import oracle.jdbc.driver.T4CXAConnection;
 import oracle.jdbc.internal.OraclePreparedStatement;
 import oracle.jdbc.xa.client.OracleXAConnection;
 import oracle.sql.ROWID;
@@ -47,7 +48,12 @@ public class OracleUtils {
     private final static Log LOG = LogFactory.getLog(OracleUtils.class);
 
     public static XAConnection OracleXAConnection(Connection oracleConnection) throws XAException {
-        return new OracleXAConnection(oracleConnection);
+        String oracleConnectionClassName = oracleConnection.getClass().getName();
+        if ("oracle.jdbc.driver.T4CConnection".equals(oracleConnectionClassName)) {
+            return new T4CXAConnection(oracleConnection);
+        } else {
+            return new OracleXAConnection(oracleConnection);
+        }
     }
 
     public static int getRowPrefetch(PreparedStatement stmt) throws SQLException {
diff --git a/src/main/resources/support/http/resources/datasource.html b/src/main/resources/support/http/resources/datasource.html
index f1d6922fb0..e6b1fadc0e 100644
--- a/src/main/resources/support/http/resources/datasource.html
+++ b/src/main/resources/support/http/resources/datasource.html
@@ -25,14 +25,16 @@
       		</div> 
     	</div>
     	<script id="datasource-tmpl" type="text/template">
-			{{~ it.Content :datasourceNow:i  }}
 			<ul class="nav nav-tabs" id="datasourceTab">
-					<li class="active">
+				{{~ it.Content :datasourceNow:i  }}
+					<li class="{{=i==0?'active':''}}" id="datasourceTab-li-{{=i}}">
 						<a href="datasource.html#dstab{{=datasourceNow.Identity}}">{{=datasourceNow.Name}}</a>
 					</li>
+				{{~ }}
 			</ul>
 			<div class="tab-content">
-				<div class="tab-pane active" id="dstab{{=datasourceNow.Identity}}">
+				{{~ it.Content :datasourceNow:i  }}
+				<div class="tab-pane {{=i==0?'active':''}}" id="dstab{{=datasourceNow.Identity}}">
 					<h4>
 						Basic Info For {{=datasourceNow.Name}}<a href="datasource-{{=datasourceNow.Identity}}.json" target="_blank"  >View JSON API</a>
 					</h4>
@@ -401,8 +403,8 @@
 						</tbody>
 					</table>
 				</div>
+				{{~ }}
 			</div>
-			{{~ }}	
 		</script>
     	<script type="text/javascript">
 			$.namespace("druid.datasource");