diff --git a/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java b/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java
index 65a277a0f..36d8e7f7a 100644
--- a/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java
+++ b/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java
@@ -94,6 +94,6 @@ public class RemoteWorkspace implements Workspace {
     @Override
     public boolean equals(Object obj) {
         
-        return obj != null && obj instanceof RemoteWorkspace && AssistUtils.equals(((RemoteWorkspace) obj).connection, this.connection);
+        return obj instanceof RemoteWorkspace && AssistUtils.equals(((RemoteWorkspace) obj).connection, this.connection);
     }
 }