From 1f158324963da68ec3ed46a31bd91b360e1ee3ec Mon Sep 17 00:00:00 2001
From: Leon Jacobs <leonja511@gmail.com>
Date: Tue, 8 Aug 2017 23:46:59 +0200
Subject: [PATCH] Ensure that an Array was received in toJniObjectArray()

This allows for a failure to occur earlier instead of later
in the call stack when the length property may be needed.
---
 lib/class-factory.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/class-factory.js b/lib/class-factory.js
index d5a2dd22..2b6f2534 100644
--- a/lib/class-factory.js
+++ b/lib/class-factory.js
@@ -2241,6 +2241,11 @@ function toJniObjectArray (arr, env, classHandle, setObjectArrayFunc) {
   if (arr === null) {
     return NULL;
   }
+
+  if (!(arr instanceof Array)) {
+    throw new Error("Expected an array.");
+  }
+
   const length = arr.length;
   const result = env.newObjectArray(length, classHandle, NULL);