fix probability collection loading

common/api/src/main/java/com/dfsek/terra/api/util/ReflectionUtil.java

@@ -0,0 +1,37 @@
+package com.dfsek.terra.api.util;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.AnnotatedElement;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Type;
+import java.util.Arrays;
+import java.util.function.Consumer;
+import java.util.stream.Stream;
+
+public class ReflectionUtil {
+    public static Field[] getFields(@NotNull Class<?> type) {
+        Field[] result = type.getDeclaredFields();
+        Class<?> parentClass = type.getSuperclass();
+        if(parentClass != null) {
+            result = Stream.concat(Arrays.stream(result), Arrays.stream(getFields(parentClass))).toArray(Field[]::new);
+        }
+        return result;
+    }
+
+    public static Method[] getMethods(@NotNull Class<?> type) {
+        Method[] result = type.getDeclaredMethods();
+        Class<?> parentClass = type.getSuperclass();
+        if(parentClass != null) {
+            result = Stream.concat(Arrays.stream(result), Arrays.stream(getMethods(parentClass))).toArray(Method[]::new);
+        }
+        return result;
+    }
+
+    public static <T extends Annotation> void ifAnnotationPresent(AnnotatedElement element, Class<? extends T> annotation, Consumer<T> operation) {
+        T a = element.getAnnotation(annotation);
+        if(a != null) operation.accept(a);
+    }
+}