Intermittent TimeoutException running unit tests with GWTTestCase

[Nala]

I want to run JUnit tests on GWT code that I am working on. I was
having some difficulties so I tried to simplify things as much as
possible. I'm still having issues:

I'm working with Eclipse Galileo, WTP , and the GWT plugin.

I created a brand new java project, enabled GWT for the project.

I added the file /src/org/example/gettest/GwtTest.gwt.xml :

<module>
<inherits name='com.google.gwt.user.User'/>
</module>

I created a very simple test, org.example.gwttest.TrueIsTrueGWTTest:

package org.example.gwttest.client;
import com.google.gwt.junit.client.GWTTestCase;

public class TrueIsTrueGWTTest extends GWTTestCase {

@Override
public String getModuleName() {
return "org.example.gwttest.GwtTest";
}

public void testTrueIsTrue() {
assertTrue(true);
}
}


I run the test from the Project Explorer using the context menu "Run
as -> GWT JUnit test" or "Run as -> GWT JUnit test (web mode)" and
the test runs just fine, taking under 10 seconds.

If I run the test multiple times, tho, after 2 to 5 tries, I get

com.google.gwt.junit.client.TimeoutException: The browser did not
contact the server within 60000ms.
- 1 client(s) haven't responded back to JUnitShell since the start
of the test.
Actual time elapsed: 60.025 seconds.

at com.google.gwt.junit.JUnitShell.notDone(JUnitShell.java:551)
at com.google.gwt.dev.HostedModeBase.pumpEventLoop
(HostedModeBase.java:556)
at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:
652)
at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:346)
at com.google.gwt.junit.client.GWTTestCase.runTest
(GWTTestCase.java:219)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:120)
at com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:
132)
at junit.framework.TestSuite.runTest(TestSuite.java:230)
at junit.framework.TestSuite.run(TestSuite.java:225)
at
org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run
(JUnit3TestReference.java:130)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run
(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests
(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests
(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run
(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main
(RemoteTestRunner.java:197)

Then I can run it again, and it works. I have seen some suggestions
related the that error, but they applied to situation where the test
wouldn't run at all - mine works some of the time.

Does anyone have a suggestion for getting rid of this intermittent
problem?

Thank you,
Nancy Deschenes

[Joe Cole]

We have experienced this on 1.5 since it was released. Happens about
1/20 runs in my experience.
I've never gotten to the bottom of it - anyone else?

[Nala]

I tried to find out more. As far as I can tell, something goes wrong
between the time when the browser-emulating side is told to load the
junit test page (ex: http://localhost:51851/org.example.gwttest.GwtTest.JUnit/junit.html)
and the time when the GWTShellServlet receives the call to service
().

I think I've reached the end of my ability to trace this,

I have submitted this as an issue : http://code.google.com/p/google-web-toolkit/issues/detail?id=4099