Use UsernameNotFoundException Factory

Issue gh-17179

core/src/main/java/org/springframework/security/provisioning/InMemoryUserDetailsManager.java

@@ -164,7 +164,7 @@ public class InMemoryUserDetailsManager implements UserDetailsManager, UserDetai
 	public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
 		UserDetails user = this.users.get(username.toLowerCase(Locale.ROOT));
 		if (user == null) {
-			throw new UsernameNotFoundException("user '" + username + "' not found");
+			throw UsernameNotFoundException.fromUsername(username);
 		}
 		if (user instanceof CredentialsContainer) {
 			return user;

ldap/src/main/java/org/springframework/security/ldap/authentication/PasswordComparisonAuthenticator.java

@@ -93,7 +93,7 @@ public final class PasswordComparisonAuthenticator extends AbstractLdapAuthentic
 			}
 		}
 		if (user == null) {
-			throw new UsernameNotFoundException("User not found: " + username);
+			throw UsernameNotFoundException.fromUsername(username);
 		}
 		if (logger.isTraceEnabled()) {
 			logger.trace(LogMessage.format("Comparing password attribute '%s' for user '%s'",

ldap/src/main/java/org/springframework/security/ldap/authentication/ad/ActiveDirectoryLdapAuthenticationProvider.java

@@ -307,8 +307,7 @@ public final class ActiveDirectoryLdapAuthenticationProvider extends AbstractLda
 				throw ex;
 			}
 			// If we found no results, then the username/password did not match
-			UsernameNotFoundException userNameNotFoundException = new UsernameNotFoundException(
-					"User " + username + " not found in directory.", ex);
+			UsernameNotFoundException userNameNotFoundException = UsernameNotFoundException.fromUsername(username, ex);
 			throw badCredentials(userNameNotFoundException);
 		}
 	}

ldap/src/main/java/org/springframework/security/ldap/search/FilterBasedLdapUserSearch.java

@@ -104,7 +104,7 @@ public class FilterBasedLdapUserSearch implements LdapUserSearch {
 		}
 		catch (IncorrectResultSizeDataAccessException ex) {
 			if (ex.getActualSize() == 0) {
-				throw new UsernameNotFoundException("User " + username + " not found in directory.");
+				throw UsernameNotFoundException.fromUsername(username);
 			}
 			// Search should never return multiple results if properly configured
 			throw ex;

ldap/src/main/java/org/springframework/security/ldap/userdetails/LdapUserDetailsManager.java

@@ -154,7 +154,7 @@ public class LdapUserDetailsManager implements UserDetailsManager {
 				return new DirContextAdapter(attrs, LdapUtils.getFullDn(dn, ctx));
 			}
 			catch (NameNotFoundException ex) {
-				throw new UsernameNotFoundException("User " + username + " not found", ex);
+				throw UsernameNotFoundException.fromUsername(username, ex);
 			}
 		});
 	}

web/src/main/java/org/springframework/security/web/server/authentication/ReactivePreAuthenticatedAuthenticationManager.java

@@ -62,7 +62,7 @@ public class ReactivePreAuthenticatedAuthenticationManager implements ReactiveAu
 			.filter(this::supports)
 			.map(Authentication::getName)
 			.flatMap(this.userDetailsService::findByUsername)
-			.switchIfEmpty(Mono.error(() -> new UsernameNotFoundException("User not found")))
+			.switchIfEmpty(Mono.error(() -> UsernameNotFoundException.fromUsername(authentication.getName())))
 			.doOnNext(this.userDetailsChecker::check)
 			.map((userDetails) -> {
 				PreAuthenticatedAuthenticationToken result = new PreAuthenticatedAuthenticationToken(userDetails,