obscure message from resolver

[Jonathan Gibbons]

Mark Reinhold wrote:
>> Date: Wed, 11 Nov 2009 20:45:12 -0800
>> From: jonathan.gibbons at sun.com
>>     
>
>   
>> How do I read this message:
>>
>> org.openjdk.jigsaw.ConfigurationException: Main@=1.0: Cannot resolve
>>    at org.openjdk.jigsaw.Resolver.fail(Resolver.java:81)
>>     
>
> With difficulty, I'm afraid ...
>
>   
>> Is it
>> a) somewhere in Main@=1.0 (where did the '=' come from) there is something
>> unspecified it cannot resolve
>> b) it cannot resolve a reference (where?) to Main@=1.0
>>     
>
> During the process of resolving your Main module it failed.  Somewhere.
>
>   
>> I have a module Main at 1.0 (no '=') that just has a "requires M1;" (no version).
>> javac has auto-inserted a "requires synthetic jdk@=7-ea;".  I'm compiling Main.
>> M1 is installed in the module library.
>>     
>
> export JIGSAW_TRACE=5 and try again.  If that output doesn't help then
> send it along and I'll see what I can make of it.
>
> (Yes, this failure mode is sorely in need of better diagnostics.)
>
> - Mark
>   
Thanks; I'll back to this tomorrow morning, and see what I can figure out.

-- Jon