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RE: [aspectj-users] OutOfMemoryError while building an AspectJ project with AJDT1.1.4
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I want to make sure that people aren't misled by the fact that we exposed a
way to turn off model generation. The structure model is far from
dominating memory use. I just tried building the JDK (1300 classes) and it
was less than 9MB. So under normal circumstances it is best to just
increase the VM max.
In the future, as we move AJDT towards a tighter integration with the JDT,
the memory overhead will be reduced further.
Mik
> -----Original Message-----
> From: aspectj-users-admin@xxxxxxxxxxx [mailto:aspectj-users-
> admin@xxxxxxxxxxx] On Behalf Of Guangjing Zhou
> Sent: Friday, September 26, 2003 7:03 AM
> To: aspectj-users@xxxxxxxxxxx
> Subject: Re: [aspectj-users] OutOfMemoryError while building an AspectJ
> project with AJDT1.1.4
>
> Thank Andrew and Alain.
>
> My problem is solved by putting in "-vmargs -Xmx256M".
> Elipse does not accept "-vmargs -Xms256M". What
> happened to me before was that I mis-typed "vmargs" as
> "vmagrs" and Elipse did not complain anything and the
> available memory size was not set.
>
> I tried to turn off 'Create a structure model during
> compilation' option and rebuild without "-vmargs
> -Xmx256M". I still got OutOfMemoryError. The total
> number of files in this project is around 1000. The
> crosscuts hit 1/3 of the files. But I have also tried
> to build excluding all the aspect files.
>
> Thanks again,
>
> Guangjing
> --- Andrew Clement <CLEMAS@xxxxxxxxxx> wrote:
> >
> > Hi,
> >
> > Firstly, I've always extended the amount of storage
> > available with
> > Xmx256M rather than Xms256M - I don't know if there
> > is a real
> > difference, one sets the initial size, one sets the
> > max size. I
> > would *hope* if you set the initial size to 256M
> > then the max size
> > is initialized to match it ... I'm sure someone else
> > can comment
> > on this.
> >
> > That said, I'd be interested to see what happens if
> > you try this ...
> > (its new in 1.1.4 for very basic debugging of just
> > this
> > kind of situation)
> >
> > In the Project Properties page for your project,
> > select 'AspectJ' and you
> > should see an option that says 'Create a structure
> > model during
> > compilation' - can you turn that option *off* and
> > retry a build of
> > your project?
> >
> > This will give us an indication as to whether it is
> > the size of the
> > structure model that represents your built project
> > that is causing
> > the OOMException. This is a key difference between
> > building
> > offline via ANT and building within Eclipse, offline
> > compilations
> > will not usually create the model.
> >
> > Without the structure model, you will not see a
> > correct outline
> > view for your files, you will not see the gutter
> > annotations marking
> > where advice is in effect and you will not be able
> > to use the AJDT
> > visualiser. The built code on the disk will be OK,
> > it is only the
> > structure model that is not created.
> >
> > And can you possibly let us know:
> > - How many files in your project?
> > - How 'crosscutting' are your aspects - very hard to
> > quantify I know
> > but are they typically things like trace that hits
> > every file or
> > less pervasive than that?
> >
> > cheers,
> > Andy Clement
> > - AJDT Developer
> >
> >
> >
> > |---------+------------------------------->
> > | | Guangjing Zhou |
> > | | <gj_zhou@xxxxxxxxx> |
> > | | Sent by: |
> > | | aspectj-users-admin@|
> > | | eclipse.org |
> > | | |
> > | | |
> > | | 25/09/2003 19:17 |
> > | | Please respond to |
> > | | aspectj-users |
> > | | |
> > |---------+------------------------------->
> >
> >
> >-------------------------------------------------------------------------
> ------------------------------------|
> > |
> >
> > |
> > | To: aspectj-users@xxxxxxxxxxx
> >
> > |
> > | cc:
> >
> > |
> > | Subject: [aspectj-users] OutOfMemoryError
> > while building an AspectJ project with AJDT1.1.4
> > |
> > |
> >
> > |
> >
> >
> >-------------------------------------------------------------------------
> ------------------------------------|
> >
> >
> >
> >
> > I have just installed AJDT1.1.4 by hands with
> > Eclipse
> > 2.1.1. Then I converted a Java project to an AspectJ
> > project. But I got an AspectJ error saying
> > "OutOfMemoryError thrown null" when I tried to build
> > the AspectJ project with Eclipse.
> >
> > I tried to put "-vmargs -Xms256M" into the command
> > line to start the Eclipse. It does not help at all.
> > I
> > also used Windows 2000 Task Manager to monitor what
> > happened. The JVM just simply aborted by itself when
> > the memory ussage reached around 100M. The same
> > project was built fine with Ant and AspectJ1.1.1.
> >
> > How can I change the settings of Eclipse or AJDT to
> > make this project built?
> >
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> >
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