[Info-vax] Developing VMS applications on VMS or on Linux/Windows ?, was: Re: x86 Cross Tools Kit

[Arne Vajhøj]

On 3/5/2019 12:47 PM, VAXman- at SendSpamHere.ORG wrote:
> In article <q5kpba$12el$1 at gioia.aioe.org>, =?UTF-8?Q?Arne_Vajh=c3=b8j?= <arne at vajhoej.dk> writes:
>> On 3/4/2019 5:22 PM, VAXman- at SendSpamHere.ORG wrote:
>>> Let me know if you can figure out how to get OpenRocket to run.  I get its
>>> initial graphic splash when it starts but then, it aborts.
>>
>> It is using a special jar inside jar classloader, which seems not to
>> work well on VMS.
>>
>> Try unpack the jar file with
>>
>> jar xvf OpenRocket-15^.03.jar
>>
>> And then run with:
>>
>> java  -Xmx800m -cp .:lib/* -Djava.awt.headless=false
>> net.sf.openrocket.startup.OpenRocket
>>
>> I get something to start.

> I unpacked the .JAR as you suggested and then, I executed using your long ...
> 
>   "java .... net.sf.openrocket.startup.OpenRocket"
> 
> command.  The thing puked up a lengthy morass of error messages and tracing
> info and terminated with:
> 
> %DEBUGBOOT-W-EXPGFLQUOTA, exceeded pagefile quota
> %CMA-F-EXIT_THREAD, current thread has been requested to exit
> 
> I didn't see any such error message(s) previously!
> 
> I increased the account's PGFLQUOTA to 2,000,000 and executed your command
> again.

-Xmx800m means that Java can allocate up to 800 MB of heap space
for data from the OS.

That is 1.6 million blocks. And then add for the rest and 2 million
blocks seems warranted.

Note that I do not have any reason to believe that it actually
need that much, but I did not want troubleshooting to be bogged
down by running out of memory.

>         OpenRocket eventually fired up.
> 
> I then went back and tried:
> 
> $ java -Xmx800m -Djava.awt.headless=false -jar OpenRocket-15^.03.jar
> 
> OpenRocket fired up and even faster too.  I suppose I can now free up some
> of that disk that contains everything that I'd extracted.

Interesting. So it was only the first time it needed to be unpacked
(I still believe due to the jar in jar classloader).

Arne