8256066: Tests use deprecated TestNG API that is no longer available in new versions

[yan-too]

Three tests fixed for newer TestNG. Works now with latest jtreg as well as jtreg 5.1

---

Progress

• Change must not contain extraneous whitespace
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Issue

• JDK-8256066: Tests use deprecated TestNG API that is no longer available in new versions

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk15u-dev pull/151/head:pull/151
$ git checkout pull/151

Update a local copy of the PR:
$ git checkout pull/151
$ git pull https://git.openjdk.java.net/jdk15u-dev pull/151/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 151

View PR using the GUI difftool:
$ git pr show -t 151

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk15u-dev/pull/151.diff

[bridgekeeper]

👋 Welcome back yan! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

@yan-too This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8256066: Tests use deprecated TestNG API that is no longer available in new versions

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

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➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[yan-too]

/integrate

[openjdk]

Going to push as commit dd560a5.

[openjdk]

@yan-too Pushed as commit dd560a5.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.

[mlbridge]

Webrevs

• 00: Full (1201136f)