From 59e397b826336dddf36727306aab4f6f96eaa5a4 Mon Sep 17 00:00:00 2001
From: Lixfel <agga-games@gmx.de>
Date: Wed, 3 May 2023 17:47:10 +0200
Subject: [PATCH] Better error handling

---
 src/de/steamwar/sql/internal/SqlTypeMapper.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/de/steamwar/sql/internal/SqlTypeMapper.java b/src/de/steamwar/sql/internal/SqlTypeMapper.java
index 34c6173..53a2cc2 100644
--- a/src/de/steamwar/sql/internal/SqlTypeMapper.java
+++ b/src/de/steamwar/sql/internal/SqlTypeMapper.java
@@ -32,7 +32,12 @@ public final class SqlTypeMapper<T> {
     private static final Map<Class<?>, SqlTypeMapper<?>> mappers = new IdentityHashMap<>();
 
     public static <T> SqlTypeMapper<T> getMapper(Class<?> clazz) {
-        return (SqlTypeMapper<T>) mappers.get(clazz);
+        SqlTypeMapper<T> result = (SqlTypeMapper<T>) mappers.get(clazz);
+
+        if(result == null)
+            throw new SecurityException("Unregistered mapper requested: " + clazz.getName());
+
+        return result;
     }
 
     public static <T extends Enum<T>> void ordinalEnumMapper(Class<T> type) {