diff --git a/agent/pom.xml b/agent/pom.xml
index f0a29e6..4d141d3 100755
--- a/agent/pom.xml
+++ b/agent/pom.xml
@@ -5,7 +5,7 @@
 
   <groupId>com.alibaba.testable</groupId>
   <artifactId>agent</artifactId>
-  <version>0.1.0-SNAPSHOT</version>
+  <version>0.1.1-SNAPSHOT</version>
   <packaging>jar</packaging>
   <name>testable-agent</name>
 
diff --git a/agent/src/main/java/com/alibaba/testable/agent/handler/TestClassHandler.java b/agent/src/main/java/com/alibaba/testable/agent/handler/TestClassHandler.java
index f7fe0f8..99d26a4 100644
--- a/agent/src/main/java/com/alibaba/testable/agent/handler/TestClassHandler.java
+++ b/agent/src/main/java/com/alibaba/testable/agent/handler/TestClassHandler.java
@@ -14,6 +14,7 @@ import java.util.Map;
  */
 public class TestClassHandler extends BaseClassHandler {
 
+    private static final String CLASS_TESTABLE_TOOL = "com/alibaba/testable/core/tool/TestableTool";
     private static final String CLASS_TESTABLE_UTIL = "com/alibaba/testable/core/util/TestableUtil";
     private static final String FIELD_TEST_CASE = "TEST_CASE";
     private static final String FIELD_SOURCE_METHOD = "SOURCE_METHOD";
@@ -75,7 +76,7 @@ public class TestClassHandler extends BaseClassHandler {
     }
 
     private boolean isTestableUtilField(FieldInsnNode fieldInsnNode) {
-        return fieldInsnNode.owner.equals(CLASS_TESTABLE_UTIL) &&
+        return fieldInsnNode.owner.equals(CLASS_TESTABLE_TOOL) &&
             (fieldInsnNode.name.equals(FIELD_TEST_CASE) || fieldInsnNode.name.equals(FIELD_SOURCE_METHOD));
     }
 
diff --git a/core/pom.xml b/core/pom.xml
index 070b74e..e13392c 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -7,7 +7,7 @@
     <description>Unit test enhancement toolkit</description>
     <groupId>com.alibaba.testable</groupId>
     <artifactId>core</artifactId>
-    <version>0.1.0-SNAPSHOT</version>
+    <version>0.1.1-SNAPSHOT</version>
     <name>testable-core</name>
 
     <properties>
diff --git a/core/src/main/java/com/alibaba/testable/core/tool/TestableTool.java b/core/src/main/java/com/alibaba/testable/core/tool/TestableTool.java
new file mode 100644
index 0000000..de3856b
--- /dev/null
+++ b/core/src/main/java/com/alibaba/testable/core/tool/TestableTool.java
@@ -0,0 +1,11 @@
+package com.alibaba.testable.core.tool;
+
+/**
+ * @author flin
+ */
+public class TestableTool {
+
+    public static String TEST_CASE;
+    public static String SOURCE_METHOD;
+
+}
diff --git a/core/src/main/java/com/alibaba/testable/core/util/TestableUtil.java b/core/src/main/java/com/alibaba/testable/core/util/TestableUtil.java
index e96acdd..91d0001 100644
--- a/core/src/main/java/com/alibaba/testable/core/util/TestableUtil.java
+++ b/core/src/main/java/com/alibaba/testable/core/util/TestableUtil.java
@@ -7,9 +7,6 @@ import com.alibaba.testable.core.constant.ConstPool;
  */
 public class TestableUtil {
 
-    public static String TEST_CASE;
-    public static String SOURCE_METHOD;
-
     public static String currentSourceMethodName(Object testClassRef) {
         Class<?> testClass = testClassRef.getClass();
         StackTraceElement[] stack = getMainThread().getStackTrace();
diff --git a/demo/java-demo/pom.xml b/demo/java-demo/pom.xml
index 9583949..636afe2 100644
--- a/demo/java-demo/pom.xml
+++ b/demo/java-demo/pom.xml
@@ -16,7 +16,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<testable.version>0.1.0-SNAPSHOT</testable.version>
+		<testable.version>0.1.1-SNAPSHOT</testable.version>
 	</properties>
 
 	<dependencies>
diff --git a/demo/java-demo/src/test/java/com/alibaba/testable/demo/DemoServiceTest.java b/demo/java-demo/src/test/java/com/alibaba/testable/demo/DemoServiceTest.java
index 1c45581..2879c15 100644
--- a/demo/java-demo/src/test/java/com/alibaba/testable/demo/DemoServiceTest.java
+++ b/demo/java-demo/src/test/java/com/alibaba/testable/demo/DemoServiceTest.java
@@ -7,8 +7,8 @@ import org.junit.jupiter.api.Test;
 
 import java.util.concurrent.Callable;
 
-import static com.alibaba.testable.core.util.TestableUtil.SOURCE_METHOD;
-import static com.alibaba.testable.core.util.TestableUtil.TEST_CASE;
+import static com.alibaba.testable.core.tool.TestableTool.SOURCE_METHOD;
+import static com.alibaba.testable.core.tool.TestableTool.TEST_CASE;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 @EnableTestable
diff --git a/demo/kotlin-demo/pom.xml b/demo/kotlin-demo/pom.xml
index 0a5116c..aad9f5d 100644
--- a/demo/kotlin-demo/pom.xml
+++ b/demo/kotlin-demo/pom.xml
@@ -17,7 +17,7 @@
 	<properties>
 		<java.version>1.8</java.version>
 		<kotlin.version>1.3.72</kotlin.version>
-		<testable.version>0.1.0-SNAPSHOT</testable.version>
+		<testable.version>0.1.1-SNAPSHOT</testable.version>
 	</properties>
 
 	<dependencies>
diff --git a/demo/kotlin-demo/src/test/kotlin/com/alibaba/testable/demo/DemoServiceTest.kt b/demo/kotlin-demo/src/test/kotlin/com/alibaba/testable/demo/DemoServiceTest.kt
index 45ac974..7554509 100644
--- a/demo/kotlin-demo/src/test/kotlin/com/alibaba/testable/demo/DemoServiceTest.kt
+++ b/demo/kotlin-demo/src/test/kotlin/com/alibaba/testable/demo/DemoServiceTest.kt
@@ -3,8 +3,8 @@ package com.alibaba.testable.demo
 import com.alibaba.testable.core.accessor.PrivateAccessor
 import com.alibaba.testable.core.annotation.EnableTestable
 import com.alibaba.testable.core.annotation.TestableInject
-import com.alibaba.testable.core.util.TestableUtil.SOURCE_METHOD
-import com.alibaba.testable.core.util.TestableUtil.TEST_CASE
+import com.alibaba.testable.core.tool.TestableTool.SOURCE_METHOD
+import com.alibaba.testable.core.tool.TestableTool.TEST_CASE
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
 import java.util.concurrent.Callable
diff --git a/docs/ReleaseNote.md b/docs/ReleaseNote.md
index cbf6264..5408852 100644
--- a/docs/ReleaseNote.md
+++ b/docs/ReleaseNote.md
@@ -1,5 +1,8 @@
 # Release Note
 
+## v0.1.1
+- use `TestableTool` class to expose test context
+
 ## v0.1.0
 - move generated agent jar to class folder
 - now support mock method of any object