7.2.11 DataGroups Attribute

This attribute contains information abous static (non-trivial) data groups defined in the class. The format of the attribute is as follows:

     DataGroups_attribute {
       u2 attribute_name_index;
       u4 attribute_length;
       u2 groups_count;
       {
          u2 name_index;
          u2 access_flags;
          assignable_info members;
       } groups[groups_count];
     }

The meaning of the fields:

• attribute_name_index - index in the constant pool of the attribute name (org.bmlspecs.DataGroups)
• attribute_length - length in bytes of the whole structure
• groups_count - the number of data groups defined in the class
• groups - the groups table, where each element describes one data group and has the following meaning:
  • name_index - index in the first or the second constant pool of the group name
  • access_flags - the flags that are set for the field. The only allowed flags are ACC_PUBLIC, ACC_PROTECTED, ACC_PRIVATE and ACC_STATIC. Only one of ACC_PUBLIC, ACC_PROTECTED, ACC_PRIVATE can be set.
  • members - the members of the data group