potentially issue fixed

hippo4j-common/src/main/java/cn/hippo4j/common/toolkit/JacksonHandler.java

@@ -45,6 +45,7 @@ public class JacksonHandler implements JsonFacade {
         MAPPER.setSerializationInclusion(JsonInclude.Include.NON_NULL);
         MAPPER.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
         MAPPER.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
+        MAPPER.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
     }
 
     @Override

hippo4j-common/src/test/java/cn/hippo4j/common/toolkit/JSONUtilTest.java

@@ -15,27 +15,27 @@
  * limitations under the License.
  */
 
-package cn.hippo4j.common.toolkit;
+ package cn.hippo4j.common.toolkit;
 
-import com.fasterxml.jackson.core.type.TypeReference;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
-import lombok.NoArgsConstructor;
-import org.junit.Assert;
-import org.junit.Test;
+ import com.fasterxml.jackson.core.type.TypeReference;
+ import lombok.AllArgsConstructor;
+ import lombok.Data;
+ import lombok.EqualsAndHashCode;
+ import lombok.NoArgsConstructor;
+ import org.junit.Assert;
+ import org.junit.Test;
  
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
+ import java.util.Arrays;
+ import java.util.Collections;
+ import java.util.List;
  
-public class JSONUtilTest {
+ public class JSONUtilTest {
  
-    private static final Foo EXPECTED_FOO = new Foo(1, "foo1", new Foo(2, "foo2", null));
+     private static final Foo EXPECTED_FOO = new Foo(new Foo(null, 2, "foo2"), 1, "foo1");
  
      private static final List<Foo> EXPECTED_FOO_ARRAY = Arrays.asList(EXPECTED_FOO, EXPECTED_FOO);
  
-    private static final String EXPECTED_FOO_JSON = "{\"id\":1,\"name\":\"foo1\",\"foo\":{\"id\":2,\"name\":\"foo2\"}}";
+     private static final String EXPECTED_FOO_JSON = "{\"foo\":{\"id\":2,\"name\":\"foo2\"},\"id\":1,\"name\":\"foo1\"}";
  
      private static final String EXPECTED_FOO_JSON_ARRAY = "[" + EXPECTED_FOO_JSON + "," + EXPECTED_FOO_JSON + "]";
  
@@ -79,10 +79,12 @@ public class JSONUtilTest {
      @Data
      private static class Foo {
  
+         private Foo foo;
+ 
          private Integer id;
  
          private String name;
  
-        private Foo foo;
      }
-}
+ }
+