From 1ef701378d32a4c303dbca1037fbe05f7bbbc118 Mon Sep 17 00:00:00 2001
From: Silvan Heller <silvan.heller@unibas.ch>
Date: Tue, 26 Jul 2022 10:13:34 +0200
Subject: [PATCH] explicitly specifying type as Map for constructors

---
 .../org/vitrivr/cineast/core/util/ReflectionHelper.java   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cineast-core/src/main/java/org/vitrivr/cineast/core/util/ReflectionHelper.java b/cineast-core/src/main/java/org/vitrivr/cineast/core/util/ReflectionHelper.java
index f26c93d08..053e385e0 100644
--- a/cineast-core/src/main/java/org/vitrivr/cineast/core/util/ReflectionHelper.java
+++ b/cineast-core/src/main/java/org/vitrivr/cineast/core/util/ReflectionHelper.java
@@ -2,6 +2,7 @@
 
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
+import java.util.Arrays;
 import java.util.Map;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -282,6 +283,13 @@ public static <T> T instantiate(Class<? extends T> cl, Object... args) {
    */
   public static <T> T instantiate(Class<? extends T> cl, Class[] types, Object... args) {
     try {
+      // for constructors expecting maps.
+      for (int i = 0, typesLength = types.length; i < typesLength; i++) {
+        if (Arrays.stream(types[0].getInterfaces()).anyMatch(c -> c == Map.class)) {
+          types[i] = Map.class;
+        }
+      }
+
       Constructor<? extends T> con = cl.getConstructor(types);
       return con.newInstance(args);
     } catch (InvocationTargetException e) {