Kantonatos

Came here for the same reason. But for me it's the client. After following your instructions with the jar, I ended up with the following error. I assume to have chosen the right jar -jar "${lminecraft_library_path}/net/minecraftforge/forge/1.20.4-49.0.3/forge-1.20.4-49.0.3-shim.jar" Minecraft 1.20.4 Forge: 1.20.4 - 49.0.3 ;--- cut here --- [7.633s][info][class,load] cpw.mods.jarhandling.SecureJar$ModuleDataProvider source: file:/home/habibiboy/.minecraft/libraries/net/minecraftforge/securemodules/2.2.7/securemodules-2.2.7.jar [7.636s][info][class,load] java.security.CodeSigner source: jrt:/java.base [7.636s][info][class,load] java.nio.file.spi.FileSystemProvider$1 source: jrt:/java.base [7.637s][info][class,load] java.util.ServiceLoader source: shared objects file [7.639s][info][class,load] java.util.ServiceLoader$ModuleServicesLookupIterator source: shared objects file [7.639s][info][class,load] java.util.Spliterators$ArraySpliterator source: shared objects file [7.640s][info][class,load] java.util.Spliterators$1Adapter source: shared objects file [7.643s][info][class,load] java.util.Arrays$ArrayList source: shared objects file [7.648s][info][class,load] java.util.concurrent.CopyOnWriteArrayList$COWIterator source: shared objects file [7.649s][info][class,load] java.util.ServiceLoader$LazyClassPathLookupIterator source: shared objects file [7.649s][info][class,load] java.util.ServiceLoader$2 source: shared objects file [7.649s][info][class,load] java.util.ServiceLoader$3 source: shared objects file [7.652s][info][class,load] jdk.internal.module.ModulePatcher$PatchedModuleReader source: jrt:/java.base [7.654s][info][class,load] sun.net.www.protocol.jrt.Handler source: jrt:/java.base [7.663s][info][class,load] jdk.nio.zipfs.ZipFileSystemProvider source: jrt:/jdk.zipfs [7.667s][info][class,load] java.nio.file.FileSystemNotFoundException source: jrt:/java.base [7.672s][info][class,load] jdk.nio.zipfs.ZipFileSystem source: jrt:/jdk.zipfs [7.675s][info][class,load] java.lang.UnsupportedOperationException source: jrt:/java.base [7.676s][info][class,load] java.util.zip.ZipException source: jrt:/java.base [7.677s][info][class,load] java.nio.file.ProviderMismatchException source: jrt:/java.base [7.680s][info][class,load] java.nio.file.AccessMode source: jrt:/java.base [7.681s][info][class,load] java.nio.file.DirectoryStream$Filter source: jrt:/java.base [7.683s][info][class,load] java.nio.file.DirectoryStream source: jrt:/java.base [7.684s][info][class,load] java.nio.file.FileStore source: jrt:/java.base [7.688s][info][class,load] java.util.concurrent.Executor source: shared objects file [7.688s][info][class,load] java.util.concurrent.ExecutorService source: shared objects file [7.690s][info][class,load] java.nio.channels.AsynchronousChannel source: jrt:/java.base [7.690s][info][class,load] java.nio.channels.AsynchronousFileChannel source: jrt:/java.base [7.691s][info][class,load] java.util.ServiceLoader$1 source: shared objects file [7.692s][info][class,load] java.util.ServiceLoader$Provider source: shared objects file [7.692s][info][class,load] java.util.ServiceLoader$ProviderImpl source: shared objects file [7.693s][info][class,load] jdk.internal.reflect.DirectConstructorHandleAccessor source: shared objects file [7.695s][info][class,load] jdk.internal.jrtfs.JrtFileSystemProvider source: jrt:/java.base [7.699s][info][class,load] java.util.Collections$EmptyEnumeration source: shared objects file [7.699s][info][class,load] jdk.internal.loader.BuiltinClassLoader$1 source: shared objects file [7.700s][info][class,load] java.lang.CompoundEnumeration source: shared objects file [7.701s][info][class,load] jdk.internal.loader.URLClassPath$1 source: shared objects file [7.702s][info][class,load] sun.net.www.protocol.jrt.JavaRuntimeURLConnection source: jrt:/java.base [7.710s][info][class,load] sun.net.www.protocol.jrt.JavaRuntimeURLConnection$$Lambda/0x00007f5d70055728 source: sun.net.www.protocol.jrt.JavaRuntimeURLConnection [7.719s][info][class,load] sun.net.www.protocol.jrt.JavaRuntimeURLConnection$1 source: jrt:/java.base [7.720s][info][class,load] jdk.internal.jimage.ImageBufferCache source: jrt:/java.base [7.722s][info][class,load] jdk.internal.jimage.ImageBufferCache$1 source: jrt:/java.base [7.723s][info][class,load] jdk.internal.jimage.ImageBufferCache$2 source: jrt:/java.base [7.724s][info][class,load] java.util.AbstractMap$SimpleEntry source: jrt:/java.base [7.727s][info][class,load] java.util.LinkedHashMap$LinkedKeySet source: jrt:/java.base [7.731s][info][class,load] java.util.LinkedHashMap$LinkedHashIterator source: shared objects file [7.731s][info][class,load] java.util.LinkedHashMap$LinkedKeyIterator source: jrt:/java.base [7.732s][info][class,load] java.util.Collections$UnmodifiableList source: shared objects file [7.732s][info][class,load] java.util.Collections$UnmodifiableRandomAccessList source: shared objects file [7.736s][info][class,load] java.lang.invoke.LambdaForm$DMH/0x00007f5d7000c400 source: __JVM_LookupDefineClass__ [7.741s][info][class,load] cpw.mods.jarhandling.impl.Jar$$Lambda/0x00007f5d7000adb0 source: cpw.mods.jarhandling.impl.Jar [7.746s][info][class,load] cpw.mods.jarhandling.impl.Jar$$Lambda/0x00007f5d7000aff8 source: cpw.mods.jarhandling.impl.Jar [7.748s][info][class,load] java.lang.ExceptionInInitializerError source: jrt:/java.base [7.749s][info][class,load] java.lang.StackTraceElement$HashedModules source: jrt:/java.base [7.751s][info][class,load] java.lang.invoke.WrongMethodTypeException source: jrt:/java.base [7.751s][info][class,load] java.lang.reflect.InvocationTargetException source: jrt:/java.base Exception in thread "main" [7.758s][info][class,load] java.lang.Throwable$PrintStreamOrWriter source: jrt:/java.base [7.759s][info][class,load] java.lang.Throwable$WrappedPrintStream source: jrt:/java.base java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at net.minecraftforge.bootstrap.shim.Main.main(Main.java:94) Caused by: java.lang.ExceptionInInitializerError at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:64) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:60) at net.minecraftforge.bootstrap.ClassPathHelper.getCleanedClassPathImpl(ClassPathHelper.java:178) at net.minecraftforge.bootstrap.ClassPathHelper.getCleanedClassPath(ClassPathHelper.java:46) at net.minecraftforge.bootstrap.Bootstrap.start(Bootstrap.java:28) at net.minecraftforge.bootstrap.ForgeBootstrap.main(ForgeBootstrap.java:18) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ... 2 more Caused by: java.lang.IllegalStateException: Couldn't find UnionFileSystemProvider at cpw.mods.jarhandling.impl.Jar.lambda$static$1(Jar.java:48) at java.base/java.util.Optional.orElseThrow(Optional.java:403) at cpw.mods.jarhandling.impl.Jar.<clinit>(Jar.java:48) ... 9 more [7.783s][info][class,load] java.util.IdentityHashMap$IdentityHashMapIterator source: shared objects file [7.784s][info][class,load] java.util.IdentityHashMap$KeyIterator source: shared objects file [7.787s][info][class,load] java.lang.Shutdown source: shared objects file [7.789s][info][class,load] java.lang.Shutdown$Lock source: shared objects file ;--- cut here --- I tried various things here. Java 17, then Java 21, Searched for missing objects, used strace -ff java ... and so on. The securejar class is there, accessible, permissions all fine. Still running into this issue.