java launcher option -d32/-d64

Martin Buchholz martinrb at
Tue Sep 20 22:48:22 UTC 2016

At Google we found that -d32/-d64 was useful for maintaining fat binaries
during a 32-bit to 64-bit transition, and we had local patches to enable
that for Linux.  But we've left 32-bit behind and there's probably not
enough interest out there to support this mode of operation for openjdk,
and certainly not just for Solaris.

On Tue, Sep 20, 2016 at 2:53 PM, Kumar Srinivasan <
kumar.x.srinivasan at> wrote:

> Hello,
> The java launcher supports the options -d32 and -d64, primarily to
> allow the user to choose and launch 32bit or 64bit JRE, in a
> Solaris dual mode. However, since jdk8, the only supported configuration
> for
> Solaris is 64bit .
> Therefore, Is there a need for the launcher to support them  ? If so
> please let me know, as soon as possible, otherwise I will plan on removing
> the support for these options in jdk9.
> Thanks
> Kumar

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