From bfd1ebd9d744d419703047a38a1828356006e1a5 Mon Sep 17 00:00:00 2001
From: ken-kentan <ken.kentan.k2@gmail.com>
Date: Tue, 17 Aug 2021 21:50:59 +0900
Subject: [PATCH 1/2] add nashorn-core

---
 pom.xml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pom.xml b/pom.xml
index 55d3408c..b9ccb493 100644
--- a/pom.xml
+++ b/pom.xml
@@ -202,6 +202,11 @@
             <artifactId>reflectionhelper</artifactId>
             <version>1.18.4-SNAPSHOT</version>
         </dependency>
+        <dependency>
+            <groupId>org.openjdk.nashorn</groupId>
+            <artifactId>nashorn-core</artifactId>
+            <version>15.3</version>
+        </dependency>
     </dependencies>
 
     <build>

From aa40cb33c704fa788d279d7d3178447613672bea Mon Sep 17 00:00:00 2001
From: ken-kentan <ken.kentan.k2@gmail.com>
Date: Sat, 25 Sep 2021 00:17:41 +0900
Subject: [PATCH 2/2] migrate from ScriptEngineManager to
 NashornScriptEngineFactory

---
 .../java/de/epiceric/shopchest/config/HologramFormat.java  | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/main/java/de/epiceric/shopchest/config/HologramFormat.java b/src/main/java/de/epiceric/shopchest/config/HologramFormat.java
index 6e50ddf4..c1e1ba3e 100644
--- a/src/main/java/de/epiceric/shopchest/config/HologramFormat.java
+++ b/src/main/java/de/epiceric/shopchest/config/HologramFormat.java
@@ -7,7 +7,7 @@
 import java.util.regex.Pattern;
 
 import javax.script.ScriptEngine;
-import javax.script.ScriptEngineManager;
+import javax.script.ScriptEngineFactory;
 import javax.script.ScriptException;
 
 import org.bukkit.configuration.ConfigurationSection;
@@ -15,6 +15,7 @@
 
 import de.epiceric.shopchest.ShopChest;
 import de.epiceric.shopchest.utils.Operator;
+import org.openjdk.nashorn.api.scripting.NashornScriptEngineFactory;
 
 public class HologramFormat {
 
@@ -31,8 +32,8 @@ public enum Requirement {
     // e.g.: "STONE" == "DIAMOND_SWORD"
     private static final Pattern SIMPLE_STRING_CONDITION = Pattern.compile("^\"([^\"]*)\" ([=!]=) \"([^\"]*)\"$");
 
-    private ScriptEngineManager manager = new ScriptEngineManager();
-    private ScriptEngine engine = manager.getEngineByName("JavaScript");
+    private ScriptEngineFactory factory = new NashornScriptEngineFactory();
+    private ScriptEngine engine = factory.getScriptEngine();
 
     private ShopChest plugin;
     private File configFile;