teamvk/jsengine

jsengine's Issues

More general approach

I asked this in the BigDoorsOpener discussion forum

... will BDO work with other Nashorn providers, say JSEngine?

The response (with a few formatting and spelling corrections) was

No, it won't work with JSEngine sadly. That because it uses an individual way, which is not independent to its implementor.
I am already using the most independent way with the ServiceManager. The JSEngine Plugin requires that I know that the plugin exists.

My NashornJs engine does not requires to know its name or if it exists. It registers a service which everyone can use at runtime without calling the plugin or anything.

BDO will work with every Nashorn engine provider which registers a ScriptEngineManager as a bukkit service. At least as long as the plugin implements it properly and registers it as early as possible.

The JSEngine even requires that I add it as a compileOnly dependency. Which is not required when using NashornJS by me. It's doing exactly what I am trying to avoid at all costs.

Perhaps JSEngine should address these issues, so that it can be used in a more general way.

Start-up failure with Java 17

If this is a BigDoorsOpener issue please advise, and I will post there.

Versions:

>version
[07:14:19] [Server thread/INFO]: This server is running CraftBukkit version 3241-Spigot-6c1c1b2-1492826 (MC: 1.17.1) (Implementing API version 1.17.1-R0.1-SNAPSHOT)
[07:14:19] [Server thread/INFO]: You are running the latest version
>version JSEngine
[07:19:08] [Server thread/INFO]: JSEngine version 3.0.4
[07:19:08] [Server thread/INFO]: Author: vk2gpz
>version BigDoorsOpener
[07:14:53] [Server thread/INFO]: BigDoorsOpener version 2.4.4
[07:14:53] [Server thread/INFO]: Open and close doors automatically on certain conditions
[07:14:53] [Server thread/INFO]: Website: www.spigotmc.org/resources/80805/
[07:14:53] [Server thread/INFO]: Author: Hadde

Problem
JSEngine failure on server start-up, with Java 17. (Yes, it's brand new; posting for tracking purposes.)

Expected behavior
Clean start-up

Stacktrace

[07:09:38] [Server thread/INFO]: [BigDoorsOpener] Hooked into Big Doors successfully.
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] World Guard found. Trying to get a hook.
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] Hooked into world guard successfully.
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] Placeholder API found. Enabling placeholder usage.
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] MythicMobs not found. MythicMobs conditions are disabled.
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] Config is up to date.
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] Config loaded!
[07:09:38] [Server thread/INFO]: [BigDoorsOpener] Java 15 or newer detected. Searching for external Engine.
[07:09:38] [Server thread/ERROR]: [BigDoorsOpener] Plugin post start failed.
java.lang.ExceptionInInitializerError: null
        at org.openjdk.nashorn.internal.runtime.Context.compile(Context.java:1509) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context.compileScript(Context.java:1449) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context.compileScript(Context.java:759) ~[?:?]
        at org.openjdk.nashorn.api.scripting.NashornScriptEngine.compileImpl(NashornScriptEngine.java:528) ~[?:?]
        at org.openjdk.nashorn.api.scripting.NashornScriptEngine.compileImpl(NashornScriptEngine.java:517) ~[?:?]
        at org.openjdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:395) ~[?:?]
        at org.openjdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:151) ~[?:?]
        at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:262) ~[java.scripting:?]
        at de.eldoria.bigdoorsopener.util.CachingJSEngine.<init>(CachingJSEngine.java:55) ~[?:?]
        at de.eldoria.bigdoorsopener.core.BigDoorsOpener.onPostStart(BigDoorsOpener.java:147) ~[?:?]
        at de.eldoria.bigdoorsopener.eldoutilities.plugin.EldoPlugin$1.run(EldoPlugin.java:220) ~[?:?]
        at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftTask.run(CraftTask.java:82) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:415) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1269) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:438) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1217) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1050) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:305) ~[spigot-1.17.1-3241.jar:3241-Spigot-6c1c1b2-1492826]
        at java.lang.Thread.run(Thread.java:833) [?:?]
Caused by: java.lang.RuntimeException: java.lang.NoSuchMethodException: no such method: sun.misc.Unsafe.defineAnonymousClass(Class,byte[],Object[])Class/invokeVirtual
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.lambda$getDefineAnonymousClass$0(Context.java:335) ~[?:?]
        at java.security.AccessController.doPrivileged(AccessController.java:318) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.getDefineAnonymousClass(Context.java:327) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.<clinit>(Context.java:317) ~[?:?]
        ... 19 more
Caused by: java.lang.NoSuchMethodException: no such method: sun.misc.Unsafe.defineAnonymousClass(Class,byte[],Object[])Class/invokeVirtual
        at java.lang.invoke.MemberName.makeAccessException(MemberName.java:976) ~[?:?]
        at java.lang.invoke.MemberName$Factory.resolveOrFail(MemberName.java:1117) ~[?:?]
        at java.lang.invoke.MethodHandles$Lookup.resolveOrFail(MethodHandles.java:3649) ~[?:?]
        at java.lang.invoke.MethodHandles$Lookup.findVirtual(MethodHandles.java:2680) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.lambda$getDefineAnonymousClass$0(Context.java:329) ~[?:?]
        at java.security.AccessController.doPrivileged(AccessController.java:318) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.getDefineAnonymousClass(Context.java:327) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.<clinit>(Context.java:317) ~[?:?]
        ... 19 more
Caused by: java.lang.NoSuchMethodError: 'java.lang.Class sun.misc.Unsafe.defineAnonymousClass(java.lang.Class, byte[], java.lang.Object[])'
        at java.lang.invoke.MethodHandleNatives.resolve(Native Method) ~[?:?]
        at java.lang.invoke.MemberName$Factory.resolve(MemberName.java:1085) ~[?:?]
        at java.lang.invoke.MemberName$Factory.resolveOrFail(MemberName.java:1114) ~[?:?]
        at java.lang.invoke.MethodHandles$Lookup.resolveOrFail(MethodHandles.java:3649) ~[?:?]
        at java.lang.invoke.MethodHandles$Lookup.findVirtual(MethodHandles.java:2680) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.lambda$getDefineAnonymousClass$0(Context.java:329) ~[?:?]
        at java.security.AccessController.doPrivileged(AccessController.java:318) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.getDefineAnonymousClass(Context.java:327) ~[?:?]
        at org.openjdk.nashorn.internal.runtime.Context$AnonymousContextCodeInstaller.<clinit>(Context.java:317) ~[?:?]
        ... 19 more
[07:09:38] [Server thread/ERROR]: [BigDoorsOpener] Initializing failsave mode.

Config

script_engine_names:
  - js
  - JS
  - javascript
  - JavaScript
  - ecmascript
  - ECMAScript
  - nashorn
  - Nashorn

# if this option is true, even if ScriptEngineManager already has a factory
# for JavaScript, this plugin will try to replace it with openjdk nashorn.
ForceNashorn: true