Experimental Physics and
Industrial Control System

Hello, all

I'm trying to execute the simple example using JCA, to implement a channel access client in Java, but doesn't work.

    The main function of my class (SimpleJCAGet):
    
    (...)

    SimpleJCAGet simpleJCAGet = new SimpleJCAGet();
    JCALibrary jca=null;
    Context ctxt=null;
    Channel chan=null;

    if(!simpleJCAGet.parseCommand(args)) System.exit(1);
    if(!simpleJCAGet.pvSpecified) {
      System.err.println("No PV specified\n");
      System.exit(1);
    }


    try {

      jca=JCALibrary.getInstance();

      ctxt=jca.createContext(JCALibrary.JNI_SINGLE_THREADED);
      chan=ctxt.createChannel(simpleJCAGet.name);
      ctxt.pendIO(simpleJCAGet.timeout);
    
    } catch(Exception ex) {
      System.err.println(ex);
      System.exit(1);
    }

    (...)

In this point (chan=ctxt.createChannel(simpleJCAGet.name)), he throws an exception: "java.lang.IllegalStateException: Context not initialized".

The doc ( http://www.aps.anl.gov/bcda/jca/jca/2.1.2/api/gov/aps/jca/Context.html#createChannel%28java.lang.String%29 ) says: "    java.lang.IllegalStateException - if the context has been destroyed." , but the context was created in the previous row.

The files are correct, the IOC is running corretly, and this example is in page of JCA. What could be wrong?

Thanks (And sorry my english)!
Lucas José