RFR: 8219585: [TESTBUG] sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java passes trivially when it shouldn't

[Daniel Fuchs]

Hi Severin,


On 27/02/2019 16:26, Daniel Fuchs wrote:
> On Mac OS X and Linux - I saw it failed too - though with lower
> frequency (like 3 or 4 times every 100 runs), and AFAICS
> usually later and for a different reason: when it fails, it usually
> timeouts when trying to test over SSL.
> 
> On Solaris - it seems to fail at least half of the times, usually
> in timeout over SSL too.

My guess was wrong - and I might have found what caused most
of these intermittent failures on solaris/mac/linux: increasing
the time that the JMXAgentInterfaceBinding class waits for the
agent to come up (say, from 500 to 5000) and sleeping
for 1s between the plain socket test and the SSL test seems to
reduce drastically the frequency of failures.

The /timeout also needs to be bumped to allow for the extra time.

Remains only the issue with windows... I guess some alternate
communication channel could be used between the master process
and its subprocess? Like having the subprocess read on stdin,
waiting for the master process to tell it to exit for instance?

best regards

-- daniel