diff --git a/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateDirTreeSearcher.java b/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateDirTreeSearcher.java
index fa120e65e..fcad77380 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateDirTreeSearcher.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateDirTreeSearcher.java
@@ -91,7 +91,7 @@ public class TemplateDirTreeSearcher extends TemplateTreeSearcher {
      *
      * @param fileNodes
      */
-    public void addToNotCalculatedSets(List<FileNode> fileNodes) {
+    public synchronized void addToNotCalculatedSets(List<FileNode> fileNodes) {
         synchronized (lock) {
             Map<String, FileNode> chileMap = fileNodes.stream().collect(Collectors.toMap(FileNode::getEnvPath, treeNode -> treeNode));
             notCalculatedSets.addAll(chileMap.keySet());
diff --git a/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateTreeSearcher.java b/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateTreeSearcher.java
index 95597e2b2..90611c2b2 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateTreeSearcher.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/manager/search/searcher/TemplateTreeSearcher.java
@@ -13,8 +13,14 @@ import com.fr.file.filetree.FileNode;
 import com.fr.log.FineLoggerFactory;
 import com.fr.stable.project.ProjectConstants;
 
-import java.util.*;
-import java.util.concurrent.*;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ExecutorService;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Collectors;
 
@@ -82,7 +88,7 @@ public class TemplateTreeSearcher implements TreeSearcher {
      *
      * @param fileNodes
      */
-    public void addToNotCalculatedSets(List<FileNode> fileNodes) {
+    public synchronized void addToNotCalculatedSets(List<FileNode> fileNodes) {
         synchronized (lock) {
             Map<String, FileNode> chileMap = fileNodes.stream().collect(Collectors.toMap(FileNode::getEnvPath, treeNode -> treeNode));
             notCalculatedSets.addAll(chileMap.keySet());