diff --git a/src/main/java/com/profiler/modifier/connector/interceptors/ExecuteMethodInterceptor.java b/src/main/java/com/profiler/modifier/connector/interceptors/ExecuteMethodInterceptor.java
index 2e647af9f..b17201159 100644
--- a/src/main/java/com/profiler/modifier/connector/interceptors/ExecuteMethodInterceptor.java
+++ b/src/main/java/com/profiler/modifier/connector/interceptors/ExecuteMethodInterceptor.java
@@ -12,50 +12,50 @@ import com.profiler.interceptor.StaticAroundInterceptor;
 
 /**
  * Method interceptor
- * 
+ * <p/>
  * <pre>
  * org.apache.http.impl.client.AbstractHttpClient.
  * public <T> T execute(
- *            final HttpHost target, 
+ *            final HttpHost target,
  *            final HttpRequest request,
- *            final ResponseHandler<? extends T> responseHandler, 
- *            final HttpContext context) 
+ *            final ResponseHandler<? extends T> responseHandler,
+ *            final HttpContext context)
  *            throws IOException, ClientProtocolException {
  * </pre>
  */
 public class ExecuteMethodInterceptor implements StaticAroundInterceptor {
 
-	@Override
-	public void before(Object target, String className, String methodName, String parameterDescription, Object[] args) {
-		final HttpHost host = (HttpHost) args[0];
-		final HttpRequest request = (HttpRequest) args[1];
+    @Override
+    public void before(Object target, String className, String methodName, String parameterDescription, Object[] args) {
+        final HttpHost host = (HttpHost) args[0];
+        final HttpRequest request = (HttpRequest) args[1];
 
-		try {
-			Trace.traceBlockBegin();
-			TraceID nextId = Trace.getNextTraceId();
+        try {
+            Trace.traceBlockBegin();
+            TraceID nextId = Trace.getNextTraceId();
 
-			// UUID format을 그대로.
-			request.addHeader(Header.HTTP_TRACE_ID.toString(), nextId.getId().toString());
-			request.addHeader(Header.HTTP_SPAN_ID.toString(), Long.toString(nextId.getSpanId()));
-			request.addHeader(Header.HTTP_PARENT_SPAN_ID.toString(), Long.toString(nextId.getParentSpanId()));
-			request.addHeader(Header.HTTP_SAMPLED.toString(), String.valueOf(nextId.isSampled()));
-			request.addHeader(Header.HTTP_FLAGS.toString(), String.valueOf(nextId.getFlags()));
+            // UUID format을 그대로.
+            request.addHeader(Header.HTTP_TRACE_ID.toString(), nextId.getId().toString());
+            request.addHeader(Header.HTTP_SPAN_ID.toString(), Long.toString(nextId.getSpanId()));
+            request.addHeader(Header.HTTP_PARENT_SPAN_ID.toString(), Long.toString(nextId.getParentSpanId()));
+            request.addHeader(Header.HTTP_SAMPLED.toString(), String.valueOf(nextId.isSampled()));
+            request.addHeader(Header.HTTP_FLAGS.toString(), String.valueOf(nextId.getFlags()));
 
-			Trace.recordRpcName(request.getProtocolVersion().toString(), "CLIENT");
-			Trace.recordEndPoint(request.getProtocolVersion().toString() + ":" + host.getHostName() + ":" + host.getPort());
-			Trace.recordAttibute("http.url", request.getRequestLine().getUri());
-			Trace.record(Annotation.ClientSend);
-		} finally {
-			Trace.traceBlockEnd();
-		}
+            Trace.recordRpcName(request.getProtocolVersion().toString(), "CLIENT");
+            Trace.recordEndPoint(request.getProtocolVersion().toString() + ":" + host.getHostName() + ":" + host.getPort());
+            Trace.recordAttibute("http.url", request.getRequestLine().getUri());
+            Trace.record(Annotation.ClientSend);
+        } finally {
+            Trace.traceBlockEnd();
+        }
 
-		StopWatch.start("ExecuteMethodInterceptor");
-	}
+        StopWatch.start("ExecuteMethodInterceptor");
+    }
 
-	@Override
-	public void after(Object target, String className, String methodName, String parameterDescription, Object[] args, Object result) {
-		Trace.traceBlockBegin();
-		Trace.record(Annotation.ClientRecv, StopWatch.stopAndGetElapsed("ExecuteMethodInterceptor"));
-		Trace.traceBlockEnd();
-	}
+    @Override
+    public void after(Object target, String className, String methodName, String parameterDescription, Object[] args, Object result) {
+        Trace.traceBlockBegin();
+        Trace.record(Annotation.ClientRecv, StopWatch.stopAndGetElapsed("ExecuteMethodInterceptor"));
+        Trace.traceBlockEnd();
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCloseInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCloseInterceptor.java
index f94cc2c96..0691668d3 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCloseInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCloseInterceptor.java
@@ -20,6 +20,10 @@ public class ConnectionCloseInterceptor implements StaticBeforeInterceptor {
         if (logger.isLoggable(Level.INFO)) {
             logger.info("before " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args));
         }
+        if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
+            return;
+        }
         // close의 경우 호출이 실패하더라도 데이터를 삭제해야함.
         if (target instanceof Connection) {
             this.setUrl.invoke(target, new Object[]{null});
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCreateInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCreateInterceptor.java
index bb09a0dc1..1a56b927d 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCreateInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/ConnectionCreateInterceptor.java
@@ -10,6 +10,7 @@ import com.profiler.util.InterceptorUtils;
 import com.profiler.util.MetaObject;
 import com.profiler.util.StringUtils;
 
+@Deprecated
 public class ConnectionCreateInterceptor implements StaticAfterInterceptor {
 
     private final Logger logger = Logger.getLogger(ConnectionCreateInterceptor.class.getName());
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/DriverInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/DriverConnectInterceptor.java
similarity index 93%
rename from src/main/java/com/profiler/modifier/db/interceptor/DriverInterceptor.java
rename to src/main/java/com/profiler/modifier/db/interceptor/DriverConnectInterceptor.java
index 6bf816ab6..be811394b 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/DriverInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/DriverConnectInterceptor.java
@@ -14,7 +14,7 @@ import java.util.logging.Logger;
 /**
  *
  */
-public class DriverInterceptor implements StaticAroundInterceptor {
+public class DriverConnectInterceptor implements StaticAroundInterceptor {
 
     private final Logger logger = Logger.getLogger(ConnectionCreateInterceptor.class.getName());
     private final MetaObject setUrl = new MetaObject("__setUrl", String.class);
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/JDBCScope.java b/src/main/java/com/profiler/modifier/db/interceptor/JDBCScope.java
index c791d7074..d51ee9323 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/JDBCScope.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/JDBCScope.java
@@ -14,15 +14,15 @@ public class JDBCScope {
     };
 
     public static void pushScope() {
-        scope.set(true);
+        scope.set(Boolean.TRUE);
     }
 
     public static boolean isInternal() {
-        return scope.get();
+        return scope.get() != null;
     }
 
     public static void popScope() {
-        scope.set(false);
+        scope.set(null);
     }
 
 }
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementBindVariableInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementBindVariableInterceptor.java
index 426bc500a..558dc3def 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementBindVariableInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementBindVariableInterceptor.java
@@ -23,6 +23,10 @@ public class PreparedStatementBindVariableInterceptor implements StaticAfterInte
         if (logger.isLoggable(Level.INFO)) {
             logger.info("after " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args) + " result:" + result);
         }
+        if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
+            return;
+        }
         if (Trace.getCurrentTraceId() == null) {
             return;
         }
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementCreateInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementCreateInterceptor.java
index ccf9bc20e..38d115ace 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementCreateInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementCreateInterceptor.java
@@ -25,6 +25,10 @@ public class PreparedStatementCreateInterceptor implements StaticAfterIntercepto
         if (logger.isLoggable(Level.INFO)) {
             logger.info("after " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args) + " result:" + result);
         }
+        if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
+            return;
+        }
         if (!InterceptorUtils.isSuccess(result)) {
             return;
         }
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementExecuteQueryInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementExecuteQueryInterceptor.java
index 95abb7fde..9655acea1 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementExecuteQueryInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/PreparedStatementExecuteQueryInterceptor.java
@@ -30,6 +30,7 @@ public class PreparedStatementExecuteQueryInterceptor implements StaticAroundInt
             logger.info("before " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args));
         }
         if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
             return;
         }
         if (Trace.getCurrentTraceId() == null) {
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/StatementCreateInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/StatementCreateInterceptor.java
index 0cc77cfd5..ea25ad22b 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/StatementCreateInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/StatementCreateInterceptor.java
@@ -25,6 +25,10 @@ public class StatementCreateInterceptor implements StaticAfterInterceptor {
         if (logger.isLoggable(Level.INFO)) {
             logger.info("after " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args) + " result:" + result);
         }
+        if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
+            return;
+        }
         if (!InterceptorUtils.isSuccess(result)) {
             return;
         }
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteQueryInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteQueryInterceptor.java
index 25f5d366e..f676843a3 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteQueryInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteQueryInterceptor.java
@@ -26,9 +26,8 @@ public class StatementExecuteQueryInterceptor implements StaticAroundInterceptor
         if (logger.isLoggable(Level.INFO)) {
             logger.info("before " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args));
         }
-        new Exception("executeQuery").printStackTrace();
-        ;
         if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
             return;
         }
         if (Trace.getCurrentTraceId() == null) {
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteUpdateInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteUpdateInterceptor.java
index d00a97bda..4234977ed 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteUpdateInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/StatementExecuteUpdateInterceptor.java
@@ -28,6 +28,7 @@ public class StatementExecuteUpdateInterceptor implements StaticAroundIntercepto
             logger.info("before " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args));
         }
         if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
             return;
         }
         if (Trace.getCurrentTraceId() == null) {
diff --git a/src/main/java/com/profiler/modifier/db/interceptor/TransactionInterceptor.java b/src/main/java/com/profiler/modifier/db/interceptor/TransactionInterceptor.java
index e8468ad4d..4386358f7 100644
--- a/src/main/java/com/profiler/modifier/db/interceptor/TransactionInterceptor.java
+++ b/src/main/java/com/profiler/modifier/db/interceptor/TransactionInterceptor.java
@@ -24,6 +24,7 @@ public class TransactionInterceptor implements StaticAroundInterceptor {
             logger.info("before " + StringUtils.toString(target) + " " + className + "." + methodName + parameterDescription + " args:" + Arrays.toString(args));
         }
         if (JDBCScope.isInternal()) {
+            logger.info("internal jdbc scope. skip trace");
             return;
         }
         if (Trace.getCurrentTraceId() == null) {
diff --git a/src/main/java/com/profiler/modifier/db/mysql/MySQLNonRegisteringDriverModifier.java b/src/main/java/com/profiler/modifier/db/mysql/MySQLNonRegisteringDriverModifier.java
index acd5cd984..29549b1da 100644
--- a/src/main/java/com/profiler/modifier/db/mysql/MySQLNonRegisteringDriverModifier.java
+++ b/src/main/java/com/profiler/modifier/db/mysql/MySQLNonRegisteringDriverModifier.java
@@ -1,6 +1,5 @@
 package com.profiler.modifier.db.mysql;
 
-import com.mysql.jdbc.NonRegisteringDriver;
 import com.profiler.interceptor.Interceptor;
 import com.profiler.interceptor.bci.ByteCodeInstrumentor;
 import com.profiler.interceptor.bci.InstrumentClass;
@@ -36,7 +35,7 @@ public class MySQLNonRegisteringDriverModifier extends AbstractModifier {
             InstrumentClass mysqlConnection = byteCodeInstrumentor.getClass(javassistClassName);
 
 
-            Interceptor createConnection = new DriverInterceptor();
+            Interceptor createConnection = new DriverConnectInterceptor();
             String[] params = new String[]{
                     "java.lang.String", "java.util.Properties"
             };