Fix cache update when forgetting player

src/main/java/fr/Rgld_/Fraud/Spigot/Storage/Data.java

@@ -51,7 +51,7 @@
     private final Fraud fraud;
     private final Configuration.DatabaseSection.Type type;
 
     private final long cacheRefreshInterval = 60000; // Intervalle de rafraîchissement du cache en millisecondes (par exemple, 1 minute)
     private long lastCacheRefreshTime = System.currentTimeMillis();
     private final Map<String, List<String>> cache = new ConcurrentHashMap<>();
 
@@ -138,7 +138,7 @@
                 }
             }
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
     }
 
@@ -149,7 +149,7 @@
      * @throws ClassNotFoundException if the driver is not found.
      */
     public Connection connect() throws SQLException, ClassNotFoundException {
         /*
 
         //Old system without pool connection
 
@@ -180,11 +180,11 @@
                 try {
                     putPlayer(p, connection);
                 } catch (SQLException e) {
                     e.printStackTrace();
                 }
             });
         } catch (SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
     }
 
@@ -244,7 +244,7 @@
         try (Connection connection = connect()) {
             putPlayer(p, connection);
         } catch (SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
     }
 
@@ -252,14 +252,22 @@
 
     public void forgotPlayer(String name) {
         String ip = getIP(name);
-        cache.get(ip).remove(name);
+        if (ip != null) {
+            List<String> cached = cache.get(ip);
+            if (cached != null) {
+                cached.remove(name);
+                if (cached.isEmpty()) {
+                    cache.remove(ip);
+                }
+            }
+        }
         String sql = MessageFormat.format("DELETE FROM `{0}` WHERE pseudo = ?", TABLE_NAME.ips.getName());
         try(Connection connection = connect();
             PreparedStatement psst = connection.prepareStatement(sql)) {
             psst.setString(1, name);
             psst.executeUpdate();
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
     }
 
@@ -273,7 +281,7 @@
                 return rs.getLong("first");
             }
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
         return 0;
     }
@@ -288,7 +296,7 @@
                 return rs.getLong("last");
             }
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
         return 0;
     }
@@ -337,7 +345,7 @@
             if(!rs.next()) return false;
             return rs.getString("pseudo").equals(name);
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
         return false;
     }
@@ -358,7 +366,7 @@
                 return rs.getString("ip");
             }
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
         System.err.println("Error while getting the ip of " + name + " in the database.");
         return null;
@@ -380,7 +388,7 @@
             }
             return getList(ipFromPseudo);
         } catch(SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
         return Lists.newArrayList();
     }
@@ -434,7 +442,7 @@
             cache.put(address, pseudos);
             return pseudos;
         } catch (SQLException | ClassNotFoundException e) {
             e.printStackTrace();
         }
         return new ArrayList<>();
     }
@@ -492,7 +500,7 @@
                     output.put(Utils.getAddress(p.getAddress()), Lists.newArrayList());
                 }
                 for(String alt: alts) {
                     output.get(Utils.getAddress(p.getAddress())).add(Bukkit.getOfflinePlayer(alt));
                 }
             }
         }