Hi,
I’ve been using Ktorrent, the default KDE torrent client, for a couple of years but its performance is not great. Not sure if I’m doing anything wrong but as long as Ktorrent is downloadng a few more (3+) torrents it becomes really laggy and sometimes just refuses to respond to mouse clicks, etc. So I’ve been searching for an alternative and found Vuze.
I saw there is a package available in nixpkgs so I installed it. After installation, I didn’t find any GUI available. When trying to start Vuze using command vuze, it gave me the following error:
file:/nix/store/k63zkarn86cyj20vq95yn8sr8b733wm8-vuze-5750/share/java/Vuze_5750-00.jar ; file:/nix/store/v6ys8rpckw8i8mwxcv8pymqyh2w4g1wb-swt-4.5/jars/swt.jar ; file:/home/rollschild/
changeLocale: *Default Language* != English (United States). Searching without country..
changeLocale: Searching for language English in *any* country..
changeLocale: no message properties for Locale 'English (United States)' (en_US), using 'English (default)'
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.gudy.azureus2.ui.swt.Main.<init>(Main.java:111)
at org.gudy.azureus2.ui.swt.Main.main(Main.java:334)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.aelitis.azureus.launcher.MainExecutor$1.run(MainExecutor.java:34)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.UnsupportedClassVersionError: org/eclipse/swt/widgets/Listener has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at com.aelitis.azureus.launcher.classloading.PrimaryClassloader.loadClass(PrimaryClassloader.java:100)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at com.aelitis.azureus.ui.swt.Initializer.<init>(Initializer.java:159)
... 12 more
Does anyone know what this message actually means? Looks like the package was compiled using a Java runtime that is too new?
Any help would be much appreciated! Thanks!