Trying the prototype

[Collin Fagan]

Hi Maurizio,

I'm think I'm very close to being able to try this out. The compiling (via
Netbeans) worked very well and now I have a bin folder with java/javac. My
first instinct was to copy these files into the jdk1.7.0\bin folder of the
latest snapshot but the file names don't line up, java vs java.exe etc. Am I
missing some target platform setting? I'm on Windows 7 64 bit. Then again I
could be totally wrong on how I should use these files. Any help would be
appreciated.

Thanks
Collin

On Fri, Aug 6, 2010 at 2:54 PM, maurizio cimadamore <
maurizio.cimadamore at oracle.com> wrote:

> On 06/08/2010 20:36, Collin Fagan wrote:
>
>> Brian Goetz
>>> There is, however, tremendous value in you actually *trying* the
>>>
>>>
>> prototype.
>>
>>
>>> Have you done that?
>>>
>>>
>> I sir have not and would very much like to. Should I just get the latest
>> openjdk build (103?) or does Project Lambda have it's own branch? Is there
>> a
>> page that walks me through compiling from source?
>>
>> thanks,
>>
>> Collin
>>
>>
>>
> Hi Collin
> thanks for your interest in project lambda. The easiest way to try the
> prototype is to have a JDK binary snapshot available (b103 or greater); you
> then need to do the following:
>
> 1) clone the 'langtools' repository of the lambda branch:
>
> hg clone http://hg.openjdk.java.net/lambda/lambda/langtools
>
> [this will create a new 'langtools' folder in your current folder]
>
> 2) build the compiler
>
> cd langtools/make
>
> ant -Dboot.java.home=<PATH_TO_JDK6> -Dtarget.java.home=<PATH_TO_JDK7>
> build-all-tools
>
> This should compile all tools (javac/javap/javah/javadoc/apt) and should
> result in a new folder called 'dist' under the 'langtools' folder. Inside
> 'dist' there is a subfolder named 'bin' - inside, you will find the
> executables for java/javac that should allow you to compile and execute code
> containing lambda expressions.
>
> [If you like NetBeans, there's a NB project under langtools/make - the
> project name is 'langtools' - once the project has been opened in the IDE,
> you can simply build everything by pressing F-11, or by selecting 'Build'
> from the project contexual menu... however ant options (-Dboot.java.home and
> -Dtarget.java.home) still need to be specified manually --- this can be done
> by accessing the menu under Tools->Options->Misc->Ant and by inserting the
> appropriate value in the text field at the bottom of the tab].
>
> Maurizio
>
>
>