compliling with external jars

Sun Nov 6 20:49:00 GMT 2005

Dear List, 

I wrote a little program (hello world) that also uses a constructor from 
a external jar. the reason for the version of hello world is that I want 
to figure out how to compile something that included an external jar. 

The program goes like this: 
// ------------------- 
import com.jgoodies.forms.builder.ButtonBarBuilder; 

public class Test { 

	/** 
	 * @param args 
	 */ 
	public static void main(String[] args) { 
	 ButtonBarBuilder auc = new ButtonBarBuilder(); 
		System.out.println("Hello World!"); 

	} 

} 
// ---------------------------- 
To compile it, I used these command: 

gcj -Wall --main=Test ../lib/forms-1.0.5.jar Test.o -o test 
or 
gcj -Wall --main=Test ../lib/forms-1.0.5.jar Test.java -o test 
or 
gcj -O -g -c ../lib/forms-1.0.5.jar 
gcj -Wall --main=Test forms-1.0.5.o Test.o -o test 

I always get the error: 
undefined reference to `java::awt::Container::eventTypeEnabled(int)' 

I really have no idea what that means. I think there is this method in 
the classpath. 

Thanks for any suggestions!! 

Wolfgang 
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