Unless you¹re talking about a really strange VM with which I am unfamiliar,
the VM allocates the entire stack allocation size each time a thread is
started.  No additional allocations take place for the stack itself; i.e.,
it will not grow.

I guess I am left wondering why type maps are being stored in a WeakHashMap
instead of a strong one.

Just my 2 cents,
Kevin



From: Ron Bodkin <[EMAIL PROTECTED]>
Organization: New Aspects of Software
Reply-To: <aspectj-users@eclipse.org>
Date: Thu, 29 Mar 2007 12:39:26 -0700
To: <aspectj-users@eclipse.org>
Subject: RE: [aspectj-users]java.lang.StackOverflowError
atorg.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:292)

Interesting. I wouldn¹t have expected that, but perhaps the VM ran out of
heap memory in allocating a stack frame and because it ran out of memory it
reported stack overflow.
 


From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Santiago Aguiar
Sent: Thursday, March 29, 2007 12:33 PM
To: aspectj-users@eclipse.org
Subject: Re: [aspectj-users]java.lang.StackOverflowError
atorg.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:292)
 
Hi Ron! 

Thanks a lot for the reply!

The strack trace is of 1024 function calls... it seems a bit too deep for me
(I didn't paste the full stack trace in the email).

I tried your suggestion and it didn't work. However it made me thing and I
added -Xms128m -Xmx256m (since I'm passing those parameters when running in
a lab where I don't get the error) and it solved the problem.....

I don't exactly see why having less available memory would result in a
StackOverflow instead of an OutOfMemory error.....

Ron Bodkin wrote: 
Hi Santiago,
 
You might try running your test with a larger stack size, since this doesn¹t
look like an infinite loop. Try adding a VM argument ­Xss2048k to your junit
runner to do this. This value is four times the default, so you probably can
run with less, but doing this should test whether this fixes the problem (as
I suspect it will). Java programs with deep stacks sometimes need a larger
value here. And running from Eclipse has different stack depths, so the
discrepancy isn¹t too surprising.
 


From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Santiago Aguiar
Sent: Thursday, March 29, 2007 8:39 AM
To: aspectj-users@eclipse.org
Subject: [aspectj-users] java.lang.StackOverflowError
atorg.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:292)
 
Hi,

I'm using AspectJ 1.5.3 using LTW and writing *most* of my aspects code
style. I get the following stack trace when running a test case from ant:

[junit] java.lang.StackOverflowError
    [junit]     at 
java.util.WeakHashMap.expungeStaleEntries(WeakHashMap.java:269)
    [junit]     at java.util.WeakHashMap.getTable(WeakHashMap.java:297)
    [junit]     at java.util.WeakHashMap.get(WeakHashMap.java:341)
    [junit]     at org.aspectj.weaver.World$TypeMap.get(World.java:967)
    [junit]     at org.aspectj.weaver.World.resolve(World.java:250)
    [junit]     at org.aspectj.weaver.World.resolve(World.java:191)
    [junit]     at 
org.aspectj.weaver.UnresolvedType.resolve(UnresolvedType.java:662)
    [junit]     at 
org.aspectj.weaver.ReferenceType.getRawType(ReferenceType.java:550)
    [junit]     at 
org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:292)
    [junit]     at 
org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:276)
    [junit]     at 
org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:292)
.....

Strangely, I don't get the error if running my test cases from inside
Eclipse. If I'm not wrong, eclipse uses it's own compiler while when running
from ant I'm compiling with Sun's compiler (1.5.0_09).

I don't really know what else to do... I suspect the issue is while handling
generics, but not much else. I'm willing to provide any additional
information to help me diagnose the problem.

I'm attaching the generated ajcore files.

thanks a lot,

saludos

-- 
santiago aguiar
netlabs
Palmar 2548
Montevideo, Uruguay
Tel. +(598 2) 707 7687
Fax. +(598 2) 709 4866
http://www.netlabs.com.uy
 





 
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-- 
santiago aguiar
netlabs
Palmar 2548
Montevideo, Uruguay
Tel. +(598 2) 707 7687
Fax. +(598 2) 709 4866
http://www.netlabs.com.uy


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