Maven

If you ran the full dist build, it should have generated a file on your hard drive called "testng-5.10-bundle.jar" ... you should be able to just upload that bundle here:

http://jira.codehaus.org/secure/CreateIssue.jspa?pid=10367&issuetype=5

Here's an example of the one we did for TestNG 5.9

http://jira.codehaus.org/browse/MAVENUPLOAD-2502

Summary: TestNG 5.10
Bundle URL: Attached
Attachment: (uploaded bundle)
Project URL: http://www.testng.org
Contributor URL: http://code.google.com/p/testng/

Description: TestNG 5.9. I'm a developer of TestNG (DanFabulich)

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Eclipse

I ended up doing the launch configuration, and just for information, here are the parameters:

Run Configuration / Eclipse application.

Check "Run an application" in "Program to run", and select org.eclipse.equinox.p2.metadata.generator.EclipseGenerator

The program arguments are (replace the update site directory appropriately):

Linux:
-os ${target.os} -ws ${target.ws} -arch ${target.arch} -nl ${target.nl}    -application org.eclipse.equinox.p2.metadata.generator.EclipseGenerator -updateSite /usr/local/cbeust/java/testng-eclipse-update-site -site file:/usr/local/cbeust/java/testng-eclipse-update-site/site.xml  -metadataRepository file:/usr/local/cbeust/java/testng-eclipse-update-site/  -artifactRepository file:/usr/local/cbeust/java/testng-eclipse-update-site -artifactRepositoryName "Ganymede Artifacts" -compress  -append  -reusePack200Files  -noDefaultIUs  -vmargs -Xmx256m

Mac
-os ${target.os} -ws ${target.ws} -arch ${target.arch} -nl ${target.nl}    -application org.eclipse.equinox.p2.metadata.generator.EclipseGenerator -updateSite /Users/cbeust/java/testng-eclipse-update-site -site file:/Users/cbeust/java/testng-eclipse-update-site/site.xml  -metadataRepository file:/Users/cbeust/java/testng-eclipse-update-site/  -artifactRepository file:/Users/cbeust/java/testng-eclipse-update-site -artifactRepositoryName "Ganymede Artifacts" -compress  -append  -reusePack200Files  -noDefaultIUs  -vmargs -Xmx256m

This will generate the site in ~/java/testng-eclipse-update-site