diff --git a/src/main/java/com/sap/lsp/cf/ws/WSSynchronization.java b/src/main/java/com/sap/lsp/cf/ws/WSSynchronization.java
index 479f59e..84a04bf 100644
--- a/src/main/java/com/sap/lsp/cf/ws/WSSynchronization.java
+++ b/src/main/java/com/sap/lsp/cf/ws/WSSynchronization.java
@@ -281,7 +281,7 @@ private void syncWorkspace(InputStream workspaceZipStream, File destination) thr
 		// Create sync label file
 		long timestamp = System.currentTimeMillis();
 		File syncFile = new File(destination, SYNC_FILE);
-		new FileOutputStream(syncFile).close();
+		syncFile.createNewFile();
 		syncFile.setLastModified(timestamp);
 	}
 
@@ -383,8 +383,8 @@ private void handleLSPDest(boolean bReg, BufferedReader reader) {
 
 	private boolean checkSync() {
 		String workspaceSaveDir = this.saveDir;
-		File fSyncts = new File(new File(workspaceSaveDir),SYNC_FILE);
-		return fSyncts.exists();
+		File fSync = new File(new File(workspaceSaveDir), SYNC_FILE);
+		return fSync.exists();
 	}
 
 
diff --git a/src/test/javascript/package.json b/src/test/javascript/package.json
index aaf1f5f..da69d13 100644
--- a/src/test/javascript/package.json
+++ b/src/test/javascript/package.json
@@ -3,14 +3,14 @@
     "test": "mocha --timeout 20000"
   },
   "devDependencies": {
-    "chai": "4.1.1",
-    "mocha": "3.5.0",
+    "chai": "4.1.2",
+    "mocha": "4.0.1",
     "promise": "8.0.1",
     "sleep": "5.1.1", 
     "promise-timeout": "1.1.1",
-    "request": "2.81.0",
-    "request-promise": "4.2.1",
-    "ws": "3.1.0"
+    "request": "2.83.0",
+    "request-promise": "4.2.2",
+    "ws": "3.3.2"
   },
   "dependencies": {
     "assert": "1.4.1"
diff --git a/src/test/javascript/test/SyncIntegrationFullTest.js b/src/test/javascript/test/SyncIntegrationFullTest.js
index fc2e776..b30a5c1 100644
--- a/src/test/javascript/test/SyncIntegrationFullTest.js
+++ b/src/test/javascript/test/SyncIntegrationFullTest.js
@@ -154,8 +154,8 @@ describe('Sync Integration Full loop Test', function () {
 			new Promise(function (resolve, reject) {
 				aSubscribers.push({
 					method: "workspace/didChangeWatchedFiles", callback: function (oLspMsg) {
-						console.log("Test response delete single file - loopback received:\n" + JSON.stringify(oLspMsg));
-						expect(oLspMsg, "Delete notification faillure").to.deep.equal(delete1Resp);
+						console.log("Test response delete single file - loop back received:\n" + JSON.stringify(oLspMsg));
+						expect(oLspMsg, "Delete notification failure").to.deep.equal(delete1Resp);
 						resolve();
 					}
 				})
diff --git a/src/test/javascript/test/SyncNoWebsocket.js b/src/test/javascript/test/SyncNoWebsocket.js
index f959fb3..c1fb008 100644
--- a/src/test/javascript/test/SyncNoWebsocket.js
+++ b/src/test/javascript/test/SyncNoWebsocket.js
@@ -73,16 +73,18 @@ describe('Sync Integration Test - no websocket', function () {
 			form.append('file', fs.createReadStream(zipFilePath));
 		}).then(function () {
 			// putting file that already exists should fail
-			return new Promise(function (resolve) {
-				let req = request.put(pathPrefix + modulePath + '/java/test.java', COMMON_OPTIONS, function (err, res) {
-					console.log("error: " + err);
-					console.log("res: " + res);
-					assert.ok(res);
-					assert.equal(res.statusCode, 403);
-					resolve(res);
+			setTimeout(function () {
+				return new Promise(function (resolve) {
+					let req = request.put(pathPrefix + modulePath + '/java/test.java', COMMON_OPTIONS, function (err, res) {
+						console.log("error: " + err);
+						console.log("res: " + res);
+						assert.ok(res);
+						assert.equal(res.statusCode, 403);
+						resolve(res);
+					});
+					req.form().append('file', fs.createReadStream(zipFilePath));
 				});
-				req.form().append('file', fs.createReadStream(zipFilePath));
-			});
+			}, 10);
 		}).then(deletePath.bind(undefined, '/java/test.java', filePath));
 	});
 
diff --git a/src/test/javascript/test/util/Util.js b/src/test/javascript/test/util/Util.js
index a380168..0cf0ecf 100644
--- a/src/test/javascript/test/util/Util.js
+++ b/src/test/javascript/test/util/Util.js
@@ -2,13 +2,13 @@ const fs = require('fs');
 
 module.exports = {
 
-		deleteFolderRecursive:  function (path) {
-			var that = this;
+	deleteFolderRecursive: function (path) {
+		let that = this;
 		if (fs.existsSync(path)) {
-	    	    fs.readdirSync(path).forEach(function(file,index){
-	    	      var curPath = path + "/" + file;
+			fs.readdirSync(path).forEach(function (file, index) {
+				let curPath = path + "/" + file;
 				if (fs.lstatSync(curPath).isDirectory()) { // recurse
-	    	        that.deleteFolderRecursive(curPath);
+					that.deleteFolderRecursive(curPath);
 				} else { // delete file
 					fs.unlinkSync(curPath);
 				}
@@ -17,4 +17,4 @@ module.exports = {
 		}
 	}
 
-}
\ No newline at end of file
+};
\ No newline at end of file