Revert incorrect try/lock

application/src/main/java/org/thingsboard/server/service/script/AbstractNashornJsInvokeService.java

@@ -124,8 +124,8 @@ public abstract class AbstractNashornJsInvokeService extends AbstractJsInvokeSer
     protected ListenableFuture<UUID> doEval(UUID scriptId, String functionName, String jsScript) {
         jsPushedMsgs.incrementAndGet();
         ListenableFuture<UUID> result = jsExecutor.executeAsync(() -> {
-            evalLock.lock();
             try {
+                evalLock.lock();
                 try {
                     if (useJsSandbox()) {
                         sandbox.eval(jsScript);