From d2d29f14cb556a86ebd93941d6aa7df105a9e462 Mon Sep 17 00:00:00 2001
From: embeddedt <42941056+embeddedt@users.noreply.github.com>
Date: Sun, 19 Feb 2023 18:44:21 -0500
Subject: [PATCH] Prevent Nashorn from defining anonymous classes if Java is
 too new

Solar Flux Reborn now works on Java 17
---
 .../embeddedt/modernfix/core/ModernFixMixinPlugin.java    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/java/org/embeddedt/modernfix/core/ModernFixMixinPlugin.java b/src/main/java/org/embeddedt/modernfix/core/ModernFixMixinPlugin.java
index c9157924..ea3b018d 100644
--- a/src/main/java/org/embeddedt/modernfix/core/ModernFixMixinPlugin.java
+++ b/src/main/java/org/embeddedt/modernfix/core/ModernFixMixinPlugin.java
@@ -39,6 +39,14 @@ public class ModernFixMixinPlugin implements IMixinConfigPlugin {
         this.logger.info("Loaded configuration file for ModernFix: {} options available, {} override(s) found",
                 config.getOptionCount(), config.getOptionOverrideCount());
 
+        try {
+            Class.forName("sun.misc.Unsafe").getDeclaredMethod("defineAnonymousClass", Class.class, byte[].class, Object[].class);
+        } catch(ReflectiveOperationException | NullPointerException e) {
+            this.logger.info("Applying Nashorn fix");
+            Properties properties = System.getProperties();
+            properties.setProperty("nashorn.args", properties.getProperty("nashorn.args", "") + " --anonymous-classes=false");
+        }
+
         /* We abuse the constructor of a mixin plugin as a safe location to start modifying the classloader */
         /* Swap the transformer for ours */
         ClassLoader loader = Thread.currentThread().getContextClassLoader();