Problem launching Azureus since Gusty upgrade

[Manuel Dahmen]

~$ azureus 
changeLocale: *Default Language* != French (Belgium). Searching without
country.. changeLocale: Searching for language French in *any* country..
changeLocale: no message properties for Locale 'French
(Belgium)' (fr_BE), using 'French (France)' Exception in thread "main"
java.lang.UnsupportedClassVersionError: org/eclipse/swt/widgets/Display
(Unsupported major.minor version 49.0) at
java.lang.ClassLoader.defineClass0(Native Method) at
java.lang.ClassLoader.defineClass(ClassLoader.java:539) at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:251) at
java.net.URLClassLoader.access$100(URLClassLoader.java:55) at
java.net.URLClassLoader$1.run(URLClassLoader.java:194) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:187) at
java.lang.ClassLoader.loadClass(ClassLoader.java:289) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274) at
java.lang.ClassLoader.loadClass(ClassLoader.java:235) at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) at
org.gudy.azureus2.ui.swt.Main.<init>(Main.java:147) at
org.gudy.azureus2.ui.swt.Main.main(Main.java:162)

so i set JAVA_HOME environment variable before launching azureus...