diff --git a/com.microsoft.java.test.plugin/src/main/java/com/microsoft/java/test/plugin/internal/JavaModelEventProvider.java b/com.microsoft.java.test.plugin/src/main/java/com/microsoft/java/test/plugin/internal/JavaModelEventProvider.java
index c6420071..439d4549 100644
--- a/com.microsoft.java.test.plugin/src/main/java/com/microsoft/java/test/plugin/internal/JavaModelEventProvider.java
+++ b/com.microsoft.java.test.plugin/src/main/java/com/microsoft/java/test/plugin/internal/JavaModelEventProvider.java
@@ -52,7 +52,7 @@ public void elementChanged(ElementChangedEvent event) {
           JDTLanguageServer ls = JavaLanguageServerPlugin.getInstance().getProtocol();
           ((JDTLanguageServer) ls)
               .getClientConnection()
-              .executeClientCommand(
+              .sendNotification(
                   CLIENT_UPDATE_CLASSPATH,
                   (Object[]) projectLocations.toArray(new String[projectLocations.size()]));
         } catch (Exception e) {
diff --git a/extension/CHANGELOG.md b/extension/CHANGELOG.md
index 0d76c26f..2ad8ccf1 100644
--- a/extension/CHANGELOG.md
+++ b/extension/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Test explorer will always show in the Activity Bar after the extension is activated. [#271](https://github.com/Microsoft/vscode-java-test/issues/271)
 
 ### Fixed
+- Fix a bug that Java Test Runner will interfere with Java language server. [#260](https://github.com/Microsoft/vscode-java-test/issues/260)
 - Fix 'command not found error' when triggering commands. [#289](https://github.com/Microsoft/vscode-java-test/issues/289)
 
 ## 0.8.0 - 2018-08-08
diff --git a/extension/package.json b/extension/package.json
index 7c8b7b44..bfc05af4 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -45,7 +45,7 @@
     "main": "./out/src/extension",
     "contributes": {
         "javaExtensions": [
-            "./server/com.microsoft.java.test.plugin-0.8.0.jar"
+            "./server/com.microsoft.java.test.plugin-0.9.0.jar"
         ],
         "views": {
             "test": [