Add no-arg constructors to LoginRequest and TestwsRequest

Moshi's JsonRpcMessageReceiver requires a no-arg constructor to
deserialize request objects. Without it, deserialization silently
falls back to Unsafe allocation, leaving fields null and causing
service-level failures (ESAPI validation rejects null inputs).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: robertlazarski

modules/samples/userguide/src/userguide/springbootdemo/src/main/java/userguide/springboot/webservices/TestwsRequest.java

@@ -31,6 +31,9 @@ public void setMessagein(String messagein) {
         this.messagein = messagein;
     }
 
+    /** No-arg constructor required by Moshi (JsonRpcMessageReceiver) for deserialization. */
+    public TestwsRequest() {}
+
     public TestwsRequest(String messagein) {
         this.messagein = messagein;
     }

modules/samples/userguide/src/userguide/springbootdemo/src/main/java/userguide/springboot/webservices/secure/LoginRequest.java

@@ -42,6 +42,9 @@ public void setCredentials(String credentials) {
     }
 
 
+    /** No-arg constructor required by Moshi (JsonRpcMessageReceiver) for deserialization. */
+    public LoginRequest() {}
+
     public LoginRequest(String email, String credentials) {
         this.email = email;
         this.credentials = credentials;