We sometimes see a timing issue with undeploy which looks like it has already been addressed if isDeployTypeXml==true but most of our tests use the dropin deploy method. I mirrored the code over with:

public void undeploy(final Archive<?> archive) throws DeploymentException {
if (log.isLoggable(Level.FINER))

{ log.entering(className, "undeploy"); }

String archiveName = archive.getName();
String deployName = createDeploymentName(archiveName);
String deployDir = null;

// IBM expedient patch for FAT test problems this was just done to prevent it
// having to be added to each arquillian.xml it would not be part of the PR
containerConfiguration.setFailSafeUndeployment(true);

try {
// If deploy type is xml, then remove the application from the xml file, which
// causes undeploy
if (containerConfiguration.isDeployTypeXML())

{ // Read the server.xml file into Memory Document document = readServerXML(); // Remove the archive from the server.xml file removeApplication(document, deployName); removeActivationSpecJmsQueueJmsTopic(document); // Update server.xml on file system writeServerXML(document); // Wait until the application is undeployed waitForApplicationTargetState(deployName, false, this.containerConfiguration.getAppUndeployTimeout()); }

// Now we can proceed and delete the archive for either deploy type
if (containerConfiguration.isDeployTypeXML())

{ deployDir = getAppDirectory(); }

else

{ deployDir = getDropInDirectory(); }

// Remove the deployed archive
File exportedArchiveLocation = new File(deployDir, archiveName);
if (!containerConfiguration.isFailSafeUndeployment()) {
try {
if (!Files.deleteIfExists(exportedArchiveLocation.toPath()))

{ throw new DeploymentException("Archive already deleted from deployment directory"); }

} catch (IOException e)

{ throw new DeploymentException("Unable to delete archive from deployment directory", e); }

} else {
try

{ Files.deleteIfExists(exportedArchiveLocation.toPath()); }

catch (IOException e)

{ log.log(Level.WARNING, "Unable to delete archive from deployment directory -> failsafe -> file marked for delete on exit", e); exportedArchiveLocation.deleteOnExit(); }

}

// If it was the archive deletion that caused the undeploy we wait for the
// correct state
if (!containerConfiguration.isDeployTypeXML())

{ // Wait until the application is undeployed waitForApplicationTargetState(deployName, false, this.containerConfiguration.getAppUndeployTimeout()); }

} catch (Exception e)

{ throw new DeploymentException("Exception while undeploying application.", e); }

if (log.isLoggable(Level.FINER))

{ log.exiting(className, "undeploy"); }

}

I will now do a PR with the above (minus the containerConfiguration.setFailSafeUndeployment(true);
line.)