CODEWITHSUNDEEP
java
Ixf1nity
Ixf1nity

Reputation: 111

java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.net.URLClassLoader.addURL(java.net.URL) accessible

This exception is being thrown; how to fix it?

java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.net.URLClassLoader.addURL(java.net.URL) accessible: module java.base does not "opens java.net" to unnamed module @338aec90
        at java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) ~[?:?]
        at java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[?:?]
        at java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) ~[?:?]
        at java.lang.reflect.Method.setAccessible(Method.java:193) ~[?:?]
        at net.byteflux.libby.classloader.URLClassLoaderHelper.<init>(URLClassLoaderHelper.java:37) ~[LifeSteal-1.0.jar:?]
        at net.byteflux.libby.BukkitLibraryManager.<init>(BukkitLibraryManager.java:28) ~[LifeSteal-1.0.jar:?]
        at in.arcadelabs.lifesteal.handler.DependencyHandler.<init>(DependencyHandler.java:18) ~[LifeSteal-1.0.jar:?]
        at in.arcadelabs.lifesteal.LifeStealPlugin.onLoad(LifeStealPlugin.java:39) ~[LifeSteal-1.0.jar:?]
        at org.bukkit.craftbukkit.v1_19_R1.CraftServer.loadPlugins(CraftServer.java:425) ~[purpur-1.19.jar:git-Purpur-1670]
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:313) ~[purpur-1.19.jar:git-Purpur-1670]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1137) ~[purpur-1.19.jar:git-Purpur-1670]
        at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:307) ~[purpur-1.19.jar:git-Purpur-1670]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]

I am using a dependency manager library called libby (https://github.com/Byteflux/libby) so when I call LibraryManager libraryManager = new BukkitLibraryManager(); it thows exception

Upvotes: 10

Views: 26790

Answers (3)

Bruce Lin
Bruce Lin

Reputation: 351

This is my case:

Reason: I updated my AS, it uses jdk17 by default which caused the problem

Solution: Change "gradle jdk location" in your AS, use your lower version jdk like jdk11 solved my problem

Upvotes: 0

reliablesoft
reliablesoft

Reputation: 11

Open gradle-wrapper.properties, and update the distributionUrl to the latest version.

For example, update

distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-bin.zip

to

distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip

Upvotes: 1

Micha Kaufman
Micha Kaufman

Reputation: 1035

did you upgrade your JDK / JRE lately?

I had that same error message, when I downgrade to older Java version it was fixed.

Upvotes: 6

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