"OpenJDK specific" attribute specifications

[Alan Bateman]

On 09/02/2017 08:18, Ess Kay wrote:

> Remi Forax has explained that the ModuleHashes attribute is "OpenJDK
> specific" and so is not part of the JMP spec. Is there an up to date
> specification of OpenJDK specific Java 9 class file changes anywhere?
ModuleHashes and ModuleResolution are JDK-specific. I'm not aware of a 
document where such class file attributes are specified. For now, 
ModuleHashes is:

      * ModuleHashes_attribute {
      *   // index to CONSTANT_utf8_info structure in constant pool 
representing
      *   // the string "ModuleHashes"
      *   u2 attribute_name_index;
      *   u4 attribute_length;
      *
      *   // index to CONSTANT_utf8_info structure with algorithm name
      *   u2 algorithm_index;
      *
      *   // the number of entries in the hashes table
      *   u2 hashes_count;
      *   {   u2 module_name_index (index to CONSTANT_Module_info structure)
      *       u2 hash_length;
      *       u1 hash[hash_length];
      *   } hashes[hashes_count];
      *
      * }

-Alan