Description Jeremy Brown 2007-05-23 16:46:00 EDT

In Eclipse 3.2.2 I'm unable to get a simple Java application to launch in debug mode and stop at breakpoints that I've specified in the editor.

Here's an example:

I create a new workspace at "/Users/jeremy/workspace".  It's totally empty.  New Project of type "Java Project".  We'll call it "TestProject".  It'll use the 1.4 JVM and we'll keep source and class files in the same folder.

I create a new class, "TestClass" in the default package.  We'll make it simple:


public class TestClass {

	public static void main(String[] args) {
		System.out.println("Hi!");
	}

}



It runs fine from Eclipse.  Set a breakpoint on my "println" statement.  Then Debug As->Java Application.

Now Eclipse hangs for about 15 seconds, then displays in the console:

Transport error, error code = -1
Hi!


I've tried launching the application externally and connecting to it from Eclipse, say with a line like:

vg0201a-dhcp156:~/workspace/TestProject jeremy$ java -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=y TestClass


Then I connect to the instance with jdb:

vg0201a-dhcp156:~ jeremy$ jdb -attach localhost:8787
Set uncaught java.lang.Throwable
Set deferred uncaught java.lang.Throwable
Initializing jdb ...
> 
VM Started: No frames on the current call stack

main[1] run
> 
The application exited


The app works fine.  But when I start the app and try to connect Eclipse to it for remote debugging, I get:

An internal error occurred during: "Launching"

And the console displays:

Transport error, error code = -1
Hi!