i have the same isue with minecraft forge the log is following
12:27:41.251
game
[12:27:41] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlclient' with arguments [--version, 1.14.4-forge-28.1.0, --gameDir, /home/myusername/.minecraft, --assetsDir, /home/myusername/.minecraft/assets, --username, mercedes7935, --assetIndex, 1.14, --uuid, 4fa1228c8dd647c48fe3b04b580311b8, --accessToken, ❄❄❄❄❄❄❄❄, --userType, legacy, --versionType, release]
12:27:42.031
game
Exception in thread "Client thread" [12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
12:27:42.032
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39)
12:27:42.032
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:50)
12:27:42.032
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:68)
12:27:42.033
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.Launcher.run(Launcher.java:80)
12:27:42.033
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
12:27:42.034
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: Caused by: java.lang.reflect.InvocationTargetException
12:27:42.034
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
12:27:42.035
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
12:27:42.035
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
12:27:42.035
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/java.lang.reflect.Method.invoke(Method.java:566)
12:27:42.036
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:56)
12:27:42.036
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
12:27:42.037
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: ... 4 more
12:27:42.037
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: Caused by: java.lang.UnsupportedOperationException
12:27:42.038
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.objectweb.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248)
12:27:42.038
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:651)
12:27:42.039
game
[12:27:42] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)