custom class validation (#1832)

* custom class validation

* formatting

spring-mvc-java/src/main/java/com/baeldung/model/NewUserForm.java

@@ -0,0 +1,58 @@
+package com.baeldung.model;
+
+import com.baeldung.customvalidator.FieldsValueMatch;
+
+@FieldsValueMatch.List({ 
+    @FieldsValueMatch(field = "password", fieldMatch = "verifyPassword", message = "Passwords do not match!"), 
+    @FieldsValueMatch(field = "email", fieldMatch = "verifyEmail", message = "Email addresses do not match!")
+})
+public class NewUserForm {
+    private String email;
+    private String verifyEmail;
+    private String password;
+    private String verifyPassword;
+
+    public NewUserForm() {
+    }
+
+    public NewUserForm(String email, String verifyEmail, String password, String verifyPassword) {
+        super();
+        this.email = email;
+        this.verifyEmail = verifyEmail;
+        this.password = password;
+        this.verifyPassword = verifyPassword;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public String getVerifyEmail() {
+        return verifyEmail;
+    }
+
+    public void setVerifyEmail(String verifyEmail) {
+        this.verifyEmail = verifyEmail;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getVerifyPassword() {
+        return verifyPassword;
+    }
+
+    public void setVerifyPassword(String verifyPassword) {
+        this.verifyPassword = verifyPassword;
+    }
+
+}