Add ReflectionUtils

nms/interface/src/main/java/de/epiceric/shopchest/nms/ReflectionUtils.java

@@ -0,0 +1,36 @@
+package de.epiceric.shopchest.nms;
+
+import java.lang.reflect.Field;
+
+/**
+ * Reflection utility class
+ */
+public class ReflectionUtils {
+
+    /**
+     * Unsafe cast, used to suppress warning for known type of generic class
+     *
+     * @param o   The object to cast
+     * @param <T> The type you want
+     * @return The same object but with the good type
+     */
+    @SuppressWarnings("unchecked")
+    public static <T> T forceCast(Object o) {
+        return (T) o;
+    }
+
+    /**
+     * Get a private static field value
+     *
+     * @param clazz     The {@link Class} to lookup
+     * @param fieldName The {@link Field} name
+     * @return The value the private static field
+     * @throws ReflectiveOperationException If the field can't be found
+     */
+    public static Object getPrivateStaticFieldValue(Class<?> clazz, String fieldName) throws ReflectiveOperationException {
+        final Field field = clazz.getDeclaredField(fieldName);
+        field.setAccessible(true);
+        return field.get(null);
+    }
+
+}