Experimental Physics and
Industrial Control System

"鲍春雷" <[email protected]> · Thu, 22 Nov 2007 16:6:37 +0800

Hello,all
	I am using JCA to do some experment.But the first program can not run.The error message is:java.lang.IllegalStateException: Context not initialized.
	My environment:
	JDK 1.6
	JCA 2.3.1
	EPICS 3.14.8

	The program:
import gov.aps.jca.Channel;
import gov.aps.jca.Context;
import gov.aps.jca.JCALibrary;

public class test {
	public static void main(String[] args) {
		 try {
		      Context ctxt= jca.createContext(JCALibrary.JNI_THREAD_SAFE);
		      ctxt.printInfo();
              Channel ch= ctxt.createChannel("light");
			  ctxt.pendIO(5.0);
		      ch.printInfo();
		     ch.destroy();
		      ctxt.destroy();
		    } catch(Exception ex) {
		      System.err.println(ex);
		    }
	}

}

BaoChunlei
Control Group,IHEP

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System