diff --git a/framework/ohscript/src/main/java/modelengine/fit/ohscript/util/Tool.java b/framework/ohscript/src/main/java/modelengine/fit/ohscript/util/Tool.java
index 83443e7c..e6abeae6 100644
--- a/framework/ohscript/src/main/java/modelengine/fit/ohscript/util/Tool.java
+++ b/framework/ohscript/src/main/java/modelengine/fit/ohscript/util/Tool.java
@@ -16,6 +16,7 @@
 import modelengine.fit.ohscript.script.parser.nodes.FunctionDeclareNode;
 import modelengine.fit.ohscript.script.semanticanalyzer.type.expressions.TypeExprFactory;
 import modelengine.fitframework.beans.ObjectInstantiator;
+import modelengine.fitframework.util.LockUtils;
 import modelengine.fitframework.util.ObjectUtils;
 
 import net.bytebuddy.ByteBuddy;
@@ -36,7 +37,9 @@
  * @since 1.0
  */
 public class Tool {
-    private static AtomicLong id = new AtomicLong(1); // remove static
+    private static final Object lock = LockUtils.newSynchronizedLock();
+
+    private static AtomicLong id = new AtomicLong(1);
 
     /**
      * 打印警告信息
@@ -73,9 +76,11 @@ protected static void setId(long value) {
     /**
      * 初始化id，只有在id为非正数时生效
      */
-    private static synchronized void initId() {
-        if (id.get() <= 0) {
-            setId(1);
+    private static void initId() {
+        synchronized (lock) {
+            if (id.get() <= 0) {
+                setId(1);
+            }
         }
     }
 
@@ -96,7 +101,7 @@ public static void grammarError(String info) {
      * @return 返回生成的UUID
      */
     public static String uuid() {
-        return UUIDUtil.fastUuid();
+        return String.valueOf(newId());
     }
 
     /**