Getting ConnectException from NetbeansPlugin, works in standalone

I have tried this with several permutations of the following components, and am getting a failure:
Netbeans 6.7.1
Netbeans 6.8m2
Netbeans 6.8Beta

SoapUI Netbeans Module 2.5.1
SoapUI Netbeans Module 3.0

I have a webservice running under Glassfish 2.1 bundled with Netbeans 6.7.1.

When trying to send to an endpoint defined as
http://localhost:20080/foo/bar/WebService:
If I send from the Netbeans module, the webservice is never hit, and I get an exception trace:
Thu Nov 12 13:03:57 MST 2009:ERROR:java.lang.Exception: java.net.ConnectException: Connection refused: connect
  java.lang.Exception: java.net.ConnectException: Connection refused: connect
  at com.eviware.soapui.impl.wsdl.submit.transports.http.HttpClientRequestTransport.sendRequest(HttpClientRequestTransport.java:158)
  at com.eviware.soapui.impl.wsdl.WsdlSubmit.run(WsdlSubmit.java:118)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
  at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
  at java.lang.Thread.run(Thread.java:619)
  Caused by: java.net.ConnectException: Connection refused: connect
  at java.net.PlainSocketImpl.socketConnect(Native Method)
  at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
  at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
  at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
  at java.net.Socket.connect(Socket.java:519)
  at java.net.Socket.connect(Socket.java:469)
  at java.net.Socket.(Socket.java:366)
  at java.net.Socket.(Socket.java:240)
  at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
  at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
  at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
  at com.eviware.soapui.impl.wsdl.support.http.SoapUIMultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(SoapUIMultiThreadedHttpConnectionManager.java:1401)
  at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
  at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
  at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
  at com.eviware.soapui.impl.wsdl.submit.transports.http.HttpClientRequestTransport.sendRequest(HttpClientRequestTransport.java:153)
  ... 7 more


However, if I open the same project in the Standalone UI (3.0.1), and open the same testcase, and use the same URL, the call succeeds.

Is there some way I can debug this to see what is going on and figure out what's not working in the netbeans module?

Thanks.