src/share/vm/classfile/classFileParser.cpp

rev 6241 : 8041918: BootstrapMethods attribute cannot be empty.
Summary: Allow a BootstrapMethods attribute that contains an empty bootstrap_methods table where num_bootstrap_methods is equal to zero.
Reviewed-by: coleenp, hseigel

*** 2775,2785 ****
  
    guarantee_property(_max_bootstrap_specifier_index < attribute_array_length,
                       "Short length on BootstrapMethods in class file %s",
                       CHECK);
  
!   guarantee_property(attribute_byte_length > sizeof(u2),
                       "Invalid BootstrapMethods attribute length %u in class file %s",
                       attribute_byte_length,
                       CHECK);
  
    // The attribute contains a counted array of counted tuples of shorts,
--- 2775,2785 ----
  
    guarantee_property(_max_bootstrap_specifier_index < attribute_array_length,
                       "Short length on BootstrapMethods in class file %s",
                       CHECK);
  
!   guarantee_property(attribute_byte_length >= sizeof(u2),
                       "Invalid BootstrapMethods attribute length %u in class file %s",
                       attribute_byte_length,
                       CHECK);
  
    // The attribute contains a counted array of counted tuples of shorts,