sun/net/www/protocol/https/HttpsURLConnection/CloseKeepAliveCached.java has ' * @ignore
 * After run the test manually, at the end of the debug output,
 * if "MainThread, called close()" found, the test passed. Otherwise,
 * if "Keep-Alive-Timer: called close()", the test failed.'
canonically, @ignore should be followed by the id of the bug which describes the problem and will be used to eventually fix it.

assuming this test can't be rewritten to be fully automated and reliable, the more appropriate solution would be to use '/manual' jtreg option, which will exclude tests from automated runs, yet will still be possible for "manual" execution by direct jtreg invocation.