RFR(S): JDK-8026964 Building with an IBM J9 boot jdk requires special settings for BOOT_RTJAR

[Volker Simonis]

Hi Kumar,

thanks, that's a good point. I'll incorporate the changes into the webrev.

Regards,
Volker

On Friday, November 15, 2013, Kumar Srinivasan wrote:

>
> Hi Volker,
>
> One thing I notieced,
>
> BOOT_RTJAR=`$BOOT_JDK/bin/java -XshowSettings 2>&1 .......
>
> I suggest using java -XshowSettings:props -version 2>&1 .........
>
> props,  will narrow down the reporting to only properties section, which is
> really what you want
>
> -version, will allow the launcher to return a 0 exit value, since
> -XshowSettings
> behaves like -showversion ie. another class or option is expected for the
> launcher
> to continue.
>
> Kumar
>
>
>  Hi,
>>
>> could you please review the following small webrev:
>>
>> http://cr.openjdk.java.net/~simonis/webrevs/8026964/
>>
>> It not only fixes bug 8026964 on AIX, but is changes the general way
>> of how to compute BOOT_RTJAR.
>>
>> With the new solution, BOOT_RTJAR is computed right from the system
>> property 'sun.boot.class.path'. The new solution should be more robust
>> and more portable as it doesn't depend on the name of the jar file
>> which contains the boot classes and it also doesn't depend on the fact
>> that all these classes are located in a single jar file.
>>
>> In order to avoid build warnings, I've taken extra care to remove jar
>> files and paths from the 'sun.boot.class.path' output which do not
>> exist (e.g. jfr.jar is not available in an OpenJDK build but appears
>> in 'sun.boot.class.path' anyway - maybe this is another bug that
>> should be fixed; also jre/classes appears in 'sun.boot.class.path'
>> although it is not present in the file system - maybe we should fix
>> that as well).
>>
>> If we are building on Windows, I convert the content of
>> 'sun.boot.class.path'  to Unix form to avoid problems with the FIXPATH
>> utility. Later, during the build, FIXPATH will convert the path list
>> back to Windows form.
>>
>> I've tested the new Solution on Linux, Windows, Solaris and AIX and
>> couldn't find any problems.
>>
>> I would like to put this into the ppc-aix-port/stage repository but as
>> this is a general fix and if you'd like to, it would be also OK if
>> you'd push it right to the build repository.
>>
>> Thank you and best regards,
>> Volker
>>
>
>
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