A few days ago I posted following problem to the OCF-Forum: I've written an applet using OCF and the Java PlugIn. In the method start() I invoke SmartCard.start(). In the method destroy() I invoke SmartCard.shutdown(). If I start the browser an load the applet all works well. OCF is initialized and starts polling the reader. Now I move to another site and the method destroy is invoked and the 'shutdown' is completed without any exceptions. If I now return to the applet the OCF is initialized again without exceptions, but it does NOT start polling the reader. Now I think I found the error and I think it is caused by not releasing all resources when doing SmartCard.shutdown(). In detail: SmartCard.start() is getting the EventGenerator. The class eventGenerator has the static class-attribute 'Thread t' which references the polling thread. Regrettably this attribute is NOT set to null when the polling-thread terminates or better at the time of shutdown. The static class-attribute 'theGenerator' is also NOT set to 'null' at the time of shutdown. That causes two problems: 1. After shutdown the instance of EventGenerator is still refrenced and can not be 'garbage collected' 2. When invoking SmartCard.start() again the EventGenerator's reference to the polling-thread is not null. That way no new thread is started ( that is only done if the reference to the polling-thread is 'null' ) but in fact the refrenced thread doesn't work. So the terminal/s is/are not polled. In my opinion at the time of shutdown following is to do: - stop / destroy the polling thread - set the static refrences to 'null' - evtl. force garbage collection Possibly anybody can verify these problems for a better future version of OCF!? Kind regards Gunnar Osterode --- > Visit the OpenCard web site at http://www.opencard.org/ for more > information on OpenCard---binaries, source code, documents. > This list is being archived at http://www.opencard.org/archive/opencard/ ! To unsubscribe from the [EMAIL PROTECTED] mailing list send an email ! to ! [EMAIL PROTECTED] ! containing the word ! unsubscribe ! in the body.
