diff --git a/boot/platform/src/main/java/com/platform/boot/commons/base/AbstractDatabase.java b/boot/platform/src/main/java/com/platform/boot/commons/base/AbstractDatabase.java
index b9749f2b..1f07657f 100644
--- a/boot/platform/src/main/java/com/platform/boot/commons/base/AbstractDatabase.java
+++ b/boot/platform/src/main/java/com/platform/boot/commons/base/AbstractDatabase.java
@@ -155,7 +155,9 @@ protected Mono<Long> countWithCache(Object key, Mono<Long> sourceMono) {
     private void cachePut(String cacheKey, Object obj) {
         DataSize objectSize = com.platform.boot.commons.utils.BeanUtils.getBeanSize(obj);
         if (objectSize.toBytes() > maxInMemorySize.toBytes()) {
-            throw RestServerException.withMsg("Object size ", "");
+            throw RestServerException.withMsg("Object size is too large.",
+                    "Object size is too large, max size is " + maxInMemorySize.toBytes() + "," +
+                            " Object size is " + objectSize.toBytes() + ".");
         }
         this.cache.put(cacheKey, obj);
     }
diff --git a/boot/platform/src/main/java/com/platform/boot/commons/utils/BeanUtils.java b/boot/platform/src/main/java/com/platform/boot/commons/utils/BeanUtils.java
index 82462c9b..cb566078 100644
--- a/boot/platform/src/main/java/com/platform/boot/commons/utils/BeanUtils.java
+++ b/boot/platform/src/main/java/com/platform/boot/commons/utils/BeanUtils.java
@@ -19,8 +19,8 @@
  * @author <a href="https://github.com/vnobo">Alex bob</a>
  */
 public class BeanUtils {
-    private static final ByteArrayOutputStream BYTE_ARRAY_OUTPUT_STREAM = new ByteArrayOutputStream();
-    private static final ObjectOutputStream OBJECT_OUTPUT_STREAM;
+    private final static ByteArrayOutputStream BYTE_ARRAY_OUTPUT_STREAM = new ByteArrayOutputStream();
+    private final static ObjectOutputStream OBJECT_OUTPUT_STREAM;
 
     static {
         try {
diff --git a/boot/platform/src/main/java/com/platform/boot/commons/utils/ContextUtils.java b/boot/platform/src/main/java/com/platform/boot/commons/utils/ContextUtils.java
index 9a82a9c6..05a7b12b 100644
--- a/boot/platform/src/main/java/com/platform/boot/commons/utils/ContextUtils.java
+++ b/boot/platform/src/main/java/com/platform/boot/commons/utils/ContextUtils.java
@@ -29,8 +29,8 @@
 @Log4j2
 @Component
 public final class ContextUtils implements Serializable {
-    public static final String CSRF_TOKEN_CONTEXT = "CSRF_TOKEN_CONTEXT";
-    public static final String SECURITY_AUTH_TOKEN_HEADER = "X-Auth-Token";
+    public final static String CSRF_TOKEN_CONTEXT = "CSRF_TOKEN_CONTEXT";
+    public final static String SECURITY_AUTH_TOKEN_HEADER = "X-Auth-Token";
     public static ObjectMapper OBJECT_MAPPER;
     public static Snowflake SNOW_FLAKE;
     public static UsersService USERS_SERVICE;