[sre] Fixing warnings in source code.

Signed-off-by: Stéphane Galland <galland@arakhne.org>

sre/io.janusproject/io.janusproject.plugin/src/io/janusproject/kernel/bic/BehaviorsSkill.java

@@ -141,6 +141,7 @@ public synchronized Behavior unregisterBehavior(Behavior attitude) {
 		return attitude;
 	}
 
+	@SuppressWarnings("unchecked")
 	@Override
 	public void wake(Event evt) {
 		wake(evt, $DEFAULT_VALUE$WAKE_0);