The class_descriptor_info structure is used to describe a class or interface defined in this package:

The items of the class_descriptor_info structure are as follows:

token

The token item represents the class token ( Section 4.3.7.2, Classes and Interfaces) of this class or interface. If this class or interface is package-visible it does not have a token assigned. In this case the value of the token item must be 0xFF.

access_flags

The access_flags item is a mask of modifiers used to describe the access permission to and properties of this class or interface. The access_flags modifiers for classes and interfaces are shown in the following table.

Name

Value

ACC_PUBLIC

0x01

ACC_FINAL

0x10

ACC_INTERFACE

0x40

ACC_ABSTRACT

0x80

The class access and modifier flags defined in the table above are a subset of those defined for classes and interfaces in a Java class file. They have the same meaning, and are set under the same conditions, as the corresponding flags in a Java class file.

All other flag values are reserved. Their values must be zero.

this_class_ref

The this_class_ref item is a class_ref structure indicating the location of the class_info structure in the Class Component ( Section 6.8, Class Component). The class_ref structure is defined as part of the CONSTANT_Classref_info structure ( Section 6.7.1, CONSTANT_Classref).

interface_count

The interface_count item represents the number of entries in the interfaces array. For an interface, interface_count is always set to zero.

field_count

The field_count item represents the number of entries in the fields array. If this class_descriptor_info structure represents an interface, the value of the field_count item is equal to zero.

Static final fields of primitive types are not represented as fields in a CAP file, but instead these compile-time constants are placed inline in bytecode sequences. The field_count item does not include static final field of primitive types defined by this class.

method_count

The method_count item represents the number of entries in the methods array.

interfaces[]

The interfaces item represents an array of interfaces implemented by this class. The elements in the array are class_ref structures indicating the location of the interface_info structure in the Class Component ( Section 6.8, Class Component). The class_ref structure is defined as part of the CONSTANT_Classref_info structure ( Section 6.7.1, CONSTANT_Classref).

fields[]

The fields item represents an array of field_descriptor_info structures. Each field declared by this class is represented in the array, except static final fields of primitive types. Inherited fields are not included in the array.

methods[]

The methods item represents an array of method_descriptor_info structures. Each method declared or defined by this class or interface is represented in the array. For a class, inherited methods are not included in the array. For an interface, inherited methods are included in the array.