Merge remote-tracking branch 'origin/dev_v5.0.1' into release_v5.0.1

pom.xml

@@ -160,7 +160,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>fastjson</artifactId>
-                <version>1.2.80</version>
+                <version>1.2.83</version>
             </dependency>
             <dependency>
                 <groupId>org.json</groupId>