diff --git a/pom.xml b/pom.xml
index 99628f8..88e33c5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,7 +45,7 @@
 
         <dependency>
             <groupId>com.loafle.overflow</groupId>
-            <artifactId>crawler_java</artifactId>
+            <artifactId>crawler</artifactId>
             <version>1.0.0-SNAPSHOT</version>
         </dependency>
 
diff --git a/src/main/java/com/loafle/overflow/crawler/sql/SQLCrawler.java b/src/main/java/com/loafle/overflow/crawler/sql/SQLCrawler.java
index 422f9ed..996a004 100644
--- a/src/main/java/com/loafle/overflow/crawler/sql/SQLCrawler.java
+++ b/src/main/java/com/loafle/overflow/crawler/sql/SQLCrawler.java
@@ -21,7 +21,7 @@ public class SQLCrawler extends Crawler {
     }
 
 
-    private List<Map<String, String>> getMetrics(Map<String, Object> config) {
+    private Object getMetrics(Map<String, Object> config) {
 
         Connection conn = null;
         Statement stmt = null;
@@ -58,8 +58,7 @@ public class SQLCrawler extends Crawler {
             return datas;
 
         } catch (Exception e) {
-
-            e.printStackTrace();
+            new Exception(e.getMessage()).printStackTrace();
 
         } finally {
             if (conn != null) {
@@ -87,7 +86,6 @@ public class SQLCrawler extends Crawler {
             }
 
         }
-
         return null;
     }
 
diff --git a/src/test/java/com/loafle/overflow/AppTest.java b/src/test/java/com/loafle/overflow/AppTest.java
index dd52e30..44fe4fc 100644
--- a/src/test/java/com/loafle/overflow/AppTest.java
+++ b/src/test/java/com/loafle/overflow/AppTest.java
@@ -1,8 +1,8 @@
 
 package com.loafle.overflow;
 
-import com.loafle.overflow.crawler.Crawler;
 import com.loafle.overflow.crawler.sql.SQLCrawler;
+import org.junit.Ignore;
 import org.junit.Test;
 
 import java.util.HashMap;
@@ -36,6 +36,7 @@ public class AppTest {
 //        info.setQuery("select * from v$sysstat");
 
     @Test
+    @Ignore
     public void testSQL() {
         SQLCrawler sc = new SQLCrawler();
         Map config = new HashMap();
@@ -45,9 +46,8 @@ public class AppTest {
         config.put("ssl", false);
         config.put("query", "show session status");
 
-        List<Map<String,String>> result = (List<Map<String,String>>)sc.getInternal(config);
-
-        for(Map<String, String> m : result) {
+        Object result = sc.getInternal(config);
+        for(Map<String, String> m : (List<Map<String,String>>)result) {
             for (Map.Entry<String, String> entry : m.entrySet()) {
                 System.out.println("Key = " + entry.getKey() + ", Value = " + entry.getValue());
             }