diff --git a/paimon-core/src/main/java/org/apache/paimon/rest/auth/AuthSession.java b/paimon-core/src/main/java/org/apache/paimon/rest/auth/AuthSession.java
index a3e34ac532df..29b4b7272c01 100644
--- a/paimon-core/src/main/java/org/apache/paimon/rest/auth/AuthSession.java
+++ b/paimon-core/src/main/java/org/apache/paimon/rest/auth/AuthSession.java
@@ -86,7 +86,7 @@ private static void scheduleTokenRefresh(
             int retryTimes) {
         if (retryTimes < TOKEN_REFRESH_NUM_RETRIES) {
             long expiresInMillis = expiresAtMillis - System.currentTimeMillis();
-            // how much ahead of time to start the request to allow it to complete
+            // how much ahead of time to start the refresh to allow it to complete
             long refreshWindowMillis = Math.min(expiresInMillis, MAX_REFRESH_WINDOW_MILLIS);
             // how much time to wait before expiration
             long waitIntervalMillis = expiresInMillis - refreshWindowMillis;
diff --git a/paimon-core/src/main/java/org/apache/paimon/rest/auth/BearTokenCredentialsProvider.java b/paimon-core/src/main/java/org/apache/paimon/rest/auth/BearTokenCredentialsProvider.java
index dfe9725fbf39..89228fe10b28 100644
--- a/paimon-core/src/main/java/org/apache/paimon/rest/auth/BearTokenCredentialsProvider.java
+++ b/paimon-core/src/main/java/org/apache/paimon/rest/auth/BearTokenCredentialsProvider.java
@@ -18,19 +18,13 @@
 
 package org.apache.paimon.rest.auth;
 
-import org.apache.paimon.utils.StringUtils;
-
 /** credentials provider for bear token. */
 public class BearTokenCredentialsProvider extends BaseBearTokenCredentialsProvider {
 
     private final String token;
 
     public BearTokenCredentialsProvider(String token) {
-        if (StringUtils.isNullOrWhitespaceOnly(token)) {
-            throw new IllegalArgumentException("token is null");
-        } else {
-            this.token = token;
-        }
+        this.token = token;
     }
 
     @Override