logging and try catch

src/main/java/stirling/software/SPDF/config/security/CustomAuthenticationFailureHandler.java

@@ -47,11 +47,11 @@ public class CustomAuthenticationFailureHandler extends SimpleUrlAuthenticationF
             response.sendRedirect("/login?error=oauth2AuthenticationError");
             return;
         }
-        
+
         String username = request.getParameter("username");
         Optional<User> optUser = userService.findByUsernameIgnoreCase(username);
-        
-        if (username != null && optUser.isPresent() && !isDemoUser(optUser) ) {
+
+        if (username != null && optUser.isPresent() && !isDemoUser(optUser)) {
             logger.info(
                     "Remaining attempts for user {}: {}",
                     optUser.get().getUsername(),

src/main/java/stirling/software/SPDF/config/security/oauth2/CustomOAuth2LogoutSuccessHandler.java

@@ -52,7 +52,7 @@ public class CustomOAuth2LogoutSuccessHandler extends SimpleUrlLogoutSuccessHand
                 issuer = provider.getIssuer();
                 clientId = provider.getClientId();
             } catch (Exception e) {
-                e.printStackTrace();
+                logger.error("exception", e);
             }
 
         } else {
@@ -115,10 +115,8 @@ public class CustomOAuth2LogoutSuccessHandler extends SimpleUrlLogoutSuccessHand
                 break;
         }
     }
-    
 
     private String sanitizeInput(String input) {
         return input.replaceAll("[^a-zA-Z0-9 ]", "");
     }
-    
 }