oot@hohenberger:~/.local/share/Trash/files/jdownloader# ant JDownloader.jar
Buildfile: build.xml does not exist!
Build failed
root@hohenberger:~/.local/share/Trash/files/jdownloader# java JDownloader.jar
Exception in thread "main" java.lang.NoClassDefFoundError: JDownloader/jar
Caused by: java.lang.ClassNotFoundException: JDownloader.jar
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
Could not find the main class: JDownloader.jar. Program will exit.