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Fix NeoForge 1.21.9 #9

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Merged
TheKodeToad merged 1 commit into from
Oct 4, 2025
+23 −5
Merged

Fix NeoForge 1.21.9 #9

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2 changes: 0 additions & 2 deletions src/main/java/io/github/zekerzhayard/forgewrapper/installer/Main.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,6 @@
import java.util.stream.Collectors;
import java.util.stream.Stream;

import cpw.mods.modlauncher.Launcher;
import io.github.zekerzhayard.forgewrapper.installer.detector.DetectorLoader;
import io.github.zekerzhayard.forgewrapper.installer.detector.IFileDetector;
import io.github.zekerzhayard.forgewrapper.installer.util.ModuleUtil;
Expand Down Expand Up @@ -47,7 +46,6 @@ public static void main(String[] args) throws Throwable {

try (URLClassLoader ucl = URLClassLoader.newInstance(new URL[] {
Main.class.getProtectionDomain().getCodeSource().getLocation(),
Launcher.class.getProtectionDomain().getCodeSource().getLocation(),
installerJar.toUri().toURL()
}, ModuleUtil.getPlatformClassLoader())) {
Class<?> installer = ucl.loadClass("io.github.zekerzhayard.forgewrapper.installer.Installer");
Expand Down
26 changes: 23 additions & 3 deletions src/main/java/io/github/zekerzhayard/forgewrapper/installer/detector/IFileDetector.java
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Original file line number Diff line number Diff line change
@@ -1,12 +1,11 @@
package io.github.zekerzhayard.forgewrapper.installer.detector;

import java.net.URL;
import java.net.URISyntaxException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;

import cpw.mods.modlauncher.Launcher;

public interface IFileDetector {
/**
* @return The name of the detector.
Expand All @@ -29,7 +28,28 @@ default Path getLibraryDir() {
return Paths.get(libraryDir).toAbsolutePath();
}
try {
Path launcher = Paths.get(Launcher.class.getProtectionDomain().getCodeSource().getLocation().toURI());
URL launcherLocation = null;
String[] classNames = {
"cpw.mods.modlauncher.Launcher",
"net.neoforged.fml.loading.FMLLoader"
};

for (String className : classNames) {
try {
Class<?> clazz = Class.forName(className);
// Return the location of the loaded class
if (clazz.getProtectionDomain().getCodeSource() != null) {
launcherLocation = clazz.getProtectionDomain().getCodeSource().getLocation();
}
} catch (ClassNotFoundException e) {
// ignore and try next
}
}

if (launcherLocation == null) {
throw new UnsupportedOperationException("Could not detect the libraries folder - it can be manually specified with `-Dforgewrapper.librariesDir=` (Java runtime argument)");
}
Path launcher = Paths.get(launcherLocation.toURI());

while (!launcher.getFileName().toString().equals("libraries")) {
launcher = launcher.getParent();
Expand Down