Using classic vm causes inverse relationship to fail?

Question

Hi there,
Anyone seen this problem?
I'm using 2.2.3 on win2k, jdk 1.3.1_03.
When I run my test app under the normal (hotspot) VM it works fine. Then, I
tried to debug it and it failed with a NullPointerException. Weird. I
tracked it down to the fact that my IDE (IDEA) forces use of the classic VM
when debugging.
So, when I run it under the classic VM, and I try and call
project.getMilestones() as defined by the following relationship, it always
returns null, even though the project in question has milestones defined in
the database (which work fine when running in non-classic mode).
<class name="Project"
requires-extent="true">
<field name="permissions">
<collection element-type="Permission"/>
<extension vendor-name="kodo" key="inverse"
value="project"/>
</field>
<field name="milestones">
<collection element-type="Milestone"/>
<extension vendor-name="kodo" key="inverse"
value="project"/>
</field>
</class>
any ideas? Is the classic VM not supported?
Cheers,
Geoff

Answer 1

Update: I can also get this to trigger by attempting to use instantdb in
pooling mode. That is, if it run it with 0 connections in the pool (and put
up with all the annoying connection messages), it works fine. However, if I
set the connections to be > 0 (or use -classic), then the relationship
fails.
Weirder and weirder. ...
Geoff
"Geoff Soutter" <[email protected]> wrote in message
news:aaivue$pcd$[email protected]..
Hi there,
Anyone seen this problem?
I'm using 2.2.3 on win2k, jdk 1.3.1_03.
When I run my test app under the normal (hotspot) VM it works fine. Then,I
tried to debug it and it failed with a NullPointerException. Weird. I
tracked it down to the fact that my IDE (IDEA) forces use of the classicVM
when debugging.
So, when I run it under the classic VM, and I try and call
project.getMilestones() as defined by the following relationship, italways
returns null, even though the project in question has milestones definedin
the database (which work fine when running in non-classic mode).
<class name="Project"
requires-extent="true">
<field name="permissions">
<collection element-type="Permission"/>
<extension vendor-name="kodo" key="inverse"
value="project"/>
</field>
<field name="milestones">
<collection element-type="Milestone"/>
<extension vendor-name="kodo" key="inverse"
value="project"/>
</field>
</class>
any ideas? Is the classic VM not supported?
Cheers,
Geoff