diff --git a/src/main/java/com/profiler/modifier/db/cubrid/CubridPreparedStatementModifier.java b/src/main/java/com/profiler/modifier/db/cubrid/CubridPreparedStatementModifier.java
index 524f01944..470360f0c 100644
--- a/src/main/java/com/profiler/modifier/db/cubrid/CubridPreparedStatementModifier.java
+++ b/src/main/java/com/profiler/modifier/db/cubrid/CubridPreparedStatementModifier.java
@@ -40,7 +40,7 @@ public class CubridPreparedStatementModifier extends AbstractModifier {
 		return null;
 	}
 
-	private static void updateConstructor(CtClass cc) throws Exception {
+	private void updateConstructor(CtClass cc) throws Exception {
 		CtConstructor[] constructorList = cc.getConstructors();
 
 		for (CtConstructor constructor : constructorList) {
@@ -58,7 +58,7 @@ public class CubridPreparedStatementModifier extends AbstractModifier {
 		}
 	}
 
-	private static void updateExecuteQueryMethod(CtClass cc) throws Exception {
+	private  void updateExecuteQueryMethod(CtClass cc) throws Exception {
 		CtMethod serviceMethod = cc.getDeclaredMethod("execute", null);
 		serviceMethod.insertAfter("{" + TomcatProfilerConstant.CLASS_NAME_REQUEST_DATA_TRACER + ".put(" + TomcatProfilerConstant.REQ_DATA_TYPE_DB_EXECUTE_QUERY + "); }");
 	}
diff --git a/src/main/java/com/profiler/modifier/db/cubrid/CubridResultSetModifier.java b/src/main/java/com/profiler/modifier/db/cubrid/CubridResultSetModifier.java
index d835cc645..b1c2db475 100644
--- a/src/main/java/com/profiler/modifier/db/cubrid/CubridResultSetModifier.java
+++ b/src/main/java/com/profiler/modifier/db/cubrid/CubridResultSetModifier.java
@@ -39,12 +39,12 @@ public class CubridResultSetModifier extends AbstractModifier {
 		return null;
 	}
 
-	private static void updateNextMethod(CtClass cc) throws Exception {
+	private void updateNextMethod(CtClass cc) throws Exception {
 		CtMethod method = cc.getDeclaredMethod("next", null);
 		method.insertBefore("{" + TomcatProfilerConstant.CLASS_NAME_REQUEST_DATA_TRACER + ".updateFetchCount(); }");
 	}
 
-	private static void updateCloseMethod(CtClass cc) throws Exception {
+	private void updateCloseMethod(CtClass cc) throws Exception {
 		CtMethod method = cc.getDeclaredMethod("close", null);
 		method.insertBefore("{" + TomcatProfilerConstant.CLASS_NAME_REQUEST_DATA_TRACER + ".addResultSetData(); } ");
 	}
diff --git a/src/main/java/com/profiler/modifier/tomcat/EntryPointStandardHostValveModifier.java b/src/main/java/com/profiler/modifier/tomcat/EntryPointStandardHostValveModifier.java
index 993bdd88e..f4b973051 100644
--- a/src/main/java/com/profiler/modifier/tomcat/EntryPointStandardHostValveModifier.java
+++ b/src/main/java/com/profiler/modifier/tomcat/EntryPointStandardHostValveModifier.java
@@ -57,7 +57,7 @@ public class EntryPointStandardHostValveModifier extends AbstractModifier {
 		return null;
 	}
 
-	private static String getInvokeMethodBeforeInsertCode() {
+	private String getInvokeMethodBeforeInsertCode() {
 		StringBuilder insertCode = new StringBuilder();
 		insertCode.append("{");
 		insertCode.append("long requestTime=System.currentTimeMillis();");
@@ -76,7 +76,7 @@ public class EntryPointStandardHostValveModifier extends AbstractModifier {
 		return insertCode.toString();
 	}
 
-	private static StringBuilder getParameterValues() {
+	private StringBuilder getParameterValues() {
 		StringBuilder insertCode = new StringBuilder();
 		insertCode.append("java.util.Enumeration attrs=tempRequest.getParameterNames();");
 		insertCode.append("StringBuilder params=new StringBuilder();");
@@ -101,7 +101,7 @@ public class EntryPointStandardHostValveModifier extends AbstractModifier {
 		return insertCode;
 	}
 
-	private static String getInvokeMethodAfterInsertCode() {
+	private String getInvokeMethodAfterInsertCode() {
 		StringBuilder insertCode = new StringBuilder();
 		insertCode.append("{");
 		insertCode.append(CLASS_NAME_REQUEST_TRACER).append(".endTransaction();");
@@ -115,7 +115,7 @@ public class EntryPointStandardHostValveModifier extends AbstractModifier {
 		return insertCode.toString();
 	}
 
-	private static String getInvokeMethodCatchInsertCode() {
+	private String getInvokeMethodCatchInsertCode() {
 		StringBuilder insertCode = new StringBuilder();
 
 		if (logger.isDebugEnabled()) {
@@ -139,7 +139,7 @@ public class EntryPointStandardHostValveModifier extends AbstractModifier {
 		return insertCode.toString();
 	}
 
-	private static void addRequestTracerToCurrentClassLoader(ClassLoader classLoader) {
+	private void addRequestTracerToCurrentClassLoader(ClassLoader classLoader) {
 		try {
 			classLoader.loadClass(CLASS_NAME_REQUEST_TRACER);
 			classLoader.loadClass(CLASS_NAME_REQUEST_THRIFT_DTO);