[Info-vax] VMS Alpha, JVM & P0 space issue

[Arne Vajhøj]

I have a program running on JVM (Jython not Java but that
should not matter).

And I noticed a weird problem.

do A
do B

fails

do B
do A

works

A use JNI aka load a shareable image

B use a lot of memory

So my hypothesis is:
* JVM allocate some heap in P0
* A load the shareable image into P0
* B needs more memory so JVM tries to extend heap
* extend fail because heap cannot be extended contiguous
   because of the shareable image

Questions:

1) Does the hypothesis sound right?
2) Is it possible to link the shareable image so that it get loaded
    higher like at 1 GB mark leaving empty P0 space between heap
    and it?
3) Will the JVM be able to use that empty P0 space to extend heap?

Arne