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src/main/java/com.xiaoyi/AbstractHttpServletRequest.java

@@ -9,8 +9,10 @@ import java.security.Principal;
 import java.util.*;
 
 public class AbstractHttpServletRequest implements HttpServletRequest {
+    // This method is overridden from the Part interface and is used to get a Part object from the request
     @Override
     public Part getPart(String s) throws IOException, ServletException {
+        // This method returns null as there is no implementation for it
         return null;
     }