compatible for 0.1.18

src/main/java/com/alibaba/druid/proxy/jdbc/TransactionInfo.java

@@ -15,45 +15,11 @@
  */
 package com.alibaba.druid.proxy.jdbc;
 
-import java.util.ArrayList;
-import java.util.List;
-
-public class TransactionInfo {
-
-    private final long         id;
-    private final List<String> sqlList = new ArrayList<String>();
-    private final long         startTimeMillis;
-    private long               endTimeMillis;
+// compatible for druid 0.1.19
+public class TransactionInfo extends com.alibaba.druid.util.TransactionInfo {
 
     public TransactionInfo(long id){
-        this.id = id;
-        this.startTimeMillis = System.currentTimeMillis();
-    }
-
-    public long getId() {
-        return id;
-    }
-
-    public List<String> getSqlList() {
-        return sqlList;
-    }
-
-    public long getStartTimeMillis() {
-        return startTimeMillis;
-    }
-
-    public long getEndTimeMillis() {
-        return endTimeMillis;
-    }
-    
-    public void setEndTimeMillis() {
-        if (endTimeMillis == 0) {
-            endTimeMillis = System.currentTimeMillis();
-        }
-    }
-
-    public void setEndTimeMillis(long endTimeMillis) {
-        this.endTimeMillis = endTimeMillis;
+        super(id);
     }
 
 }