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How to use different JRE in different project? [message #250352]

Tue, 08 June 2004 03:18

Eclipse User

I want to use different JRE in different project in the same workspace, how
can I do?
I'm using the 3M8. In the workspace preferences it says "the checked JRE
will be used by default to build and run Java programs".

Re: How to use different JRE in different project? [message #250380 is a reply to message #250352]

Tue, 08 June 2004 05:17

Eclipse User

select the properties of the project itself
there you can overwrite pretty much everything.

johan

ooo wrote:
> I want to use different JRE in different project in the same workspace, how
> can I do?
> I'm using the 3M8. In the workspace preferences it says "the checked JRE
> will be used by default to build and run Java programs".
>
>

Re: How to use different JRE in different project? [message #250426 is a reply to message #250380]

Tue, 08 June 2004 07:53

Eclipse User

Thanks. But I cann't find where to set that property in the project
properties page.
"Johan Compagner" <jcompagner@j-com.nl> wrote in message
news:ca3vob$f7c$1@eclipse.org...
> select the properties of the project itself
> there you can overwrite pretty much everything.
>
> johan
>
> ooo wrote:
> > I want to use different JRE in different project in the same workspace,
how
> > can I do?
> > I'm using the 3M8. In the workspace preferences it says "the checked JRE
> > will be used by default to build and run Java programs".
> >
> >

Re: How to use different JRE in different project? [message #250452 is a reply to message #250426]

Tue, 08 June 2004 09:04

Eclipse User

Originally posted by: smesh.openrules.com

ooo wrote:
>>>I want to use different JRE in different project in the same workspace,

Items of interest (3.0 RC1 as an example):
- "Window/Properties/Installed JRE"
- "Window/Properties/Compiler/Compliance and Classfiles"

- "Project/Properties/Java Build Path/Libraries/Add Library/JRE System
Library/Alternate JRE"

--
Sam Mesh - http://openrules.com

Re: How to use different JRE in different project? [message #250724 is a reply to message #250452]

Tue, 08 June 2004 20:36

Eclipse User

Hi.
In fact I'm trying the JDK 1.5.0 beta, and it seems not compiling with the
1.5.0 even I set "installed jre" to 1.5.0.
For the "enhanced for loop" it just reports syntax errors.
I'm using M8, in the "Window/Properties/Compiler/Compliance and
Classfiles/Compiler compliance level" there is only 1.3/1.4, is that the
problem?

Re: How to use different JRE in different project? [message #250948 is a reply to message #250724]

Wed, 09 June 2004 10:21

Eclipse User

Originally posted by: eclipse.rizzoweb.com

ooo wrote:

> Hi.
> In fact I'm trying the JDK 1.5.0 beta, and it seems not compiling with the
> 1.5.0 even I set "installed jre" to 1.5.0.
> For the "enhanced for loop" it just reports syntax errors.
> I'm using M8, in the "Window/Properties/Compiler/Compliance and
> Classfiles/Compiler compliance level" there is only 1.3/1.4, is that the
> problem?

As my 8-year-old nephew would say: "Duh!" ;-)
The new JDK 1.5 syntax elements (like the "enhanced" for loop) are
unknown to Eclipse's parser and compiler (Eclipse does not use javac to
compile, and it is doing lots of internal parsing of code to provide the
rich features it has).
That said, there is a project named Cheetah that is gradually
introducing JDK 1.5 support into Eclipse. Try searching for it at
www.eclipse.org.

HTH,
Eric

Re: How to use different JRE in different project? [message #251316 is a reply to message #250948]

Thu, 10 June 2004 00:46

Eclipse User

Ok. thank you point out.
"Eric Rizzo" <eclipse@rizzoweb.com> wrote in message
news:ca75th$crc$1@eclipse.org...
> ooo wrote:
>
> > Hi.
> > In fact I'm trying the JDK 1.5.0 beta, and it seems not compiling with
the
> > 1.5.0 even I set "installed jre" to 1.5.0.
> > For the "enhanced for loop" it just reports syntax errors.
> > I'm using M8, in the "Window/Properties/Compiler/Compliance and
> > Classfiles/Compiler compliance level" there is only 1.3/1.4, is that the
> > problem?
>
> As my 8-year-old nephew would say: "Duh!" ;-)
> The new JDK 1.5 syntax elements (like the "enhanced" for loop) are
> unknown to Eclipse's parser and compiler (Eclipse does not use javac to
> compile, and it is doing lots of internal parsing of code to provide the
> rich features it has).
> That said, there is a project named Cheetah that is gradually
> introducing JDK 1.5 support into Eclipse. Try searching for it at
> www.eclipse.org.
>
> HTH,
> Eric

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