fix

fine-druid/src/com/fr/third/alibaba/druid/pool/vendor/MSSQLValidConnectionChecker.java

@@ -1,19 +1,32 @@
-//
-// Source code recreated from a .class file by IntelliJ IDEA
-// (powered by Fernflower decompiler)
-//
-
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.fr.third.alibaba.druid.pool.vendor;
 
-import com.fr.third.alibaba.druid.pool.ValidConnectionChecker;
-import com.fr.third.alibaba.druid.pool.ValidConnectionCheckerAdapter;
-import com.fr.third.alibaba.druid.util.JdbcUtils;
-
 import java.io.Serializable;
 import java.sql.Connection;
 import java.sql.SQLException;
 import java.sql.Statement;
 
+import com.fr.third.alibaba.druid.pool.ValidConnectionChecker;
+import com.fr.third.alibaba.druid.pool.ValidConnectionCheckerAdapter;
+import com.fr.third.alibaba.druid.util.JdbcUtils;
+
+/**
+ * A MSSQLValidConnectionChecker.
+ */
 public class MSSQLValidConnectionChecker extends ValidConnectionCheckerAdapter implements ValidConnectionChecker, Serializable {
     
     private static final long serialVersionUID = 1L;
@@ -22,33 +35,30 @@ public class MSSQLValidConnectionChecker extends ValidConnectionCheckerAdapter i
     
     }
     
-    public boolean isValidConnection(Connection c, String validateQuery, int validationQueryTimeout) throws Exception {
+    public boolean isValidConnection(final Connection c, String validateQuery, int validationQueryTimeout) throws Exception {
+        
+        if (c.isClosed()) {
+            return false;
+        }
         
         if (validateQuery == null || validateQuery.isEmpty()) {
             validateQuery = "select 1";
         }
         
-        if (c.isClosed()) {
-            return false;
-        } else {
         Statement stmt = null;
         
-            boolean var5;
         try {
             stmt = c.createStatement();
             if (validationQueryTimeout > 0) {
                 stmt.setQueryTimeout(validationQueryTimeout);
             }
-                
             stmt.execute(validateQuery);
-                var5 = true;
-            } catch (SQLException var9) {
-                throw var9;
+            return true;
+        } catch (SQLException e) {
+            throw e;
         } finally {
             JdbcUtils.close(stmt);
         }
-            
-            return var5;
-        }
     }
+    
 }