==== 6.9.2 method_info ====

The **method_info** structure is defined as follows: 

The items in the **method_info** structure are as follows: 

**method_header** 

The **method_header** item represents either a **method_header**_info or an extended_**method_header**_info structure: 

The items of the **method_header_info** and extended_**method_header_info** structures are as follows: 

**flags** 

The ****flag**s** item is a mask of modifiers defined for this method. Valid **flag** values are shown in the following table. 

Flags 

Values 

ACC_EXTENDED 

0x8 

ACC_ABSTRACT 

0x4 

The value of the **ACC_EXTENDED** flag must be one if the method_header is represented by an **extended_method_header_info** structure. Otherwise the value must be zero. 

The value of the ****ACC_ABSTRACT**** flag must be one if this method is defined as abstract. In this case the bytecodes array must be empty. If this method is not abstract the value of the ****ACC_ABSTRACT**** flag must be zero. 

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

**padding** 

The **padding** item has the value of zero. This item is only defined for the **extended_method_header_info** structure. 

**max_stack** 

The **max_stack** item indicates the maximum number of 16-bit cells required on the operand stack during execution of this method. 

Stack entries of type int are represented in two 16-bit cells, while all others are represented in one 16-bit cell. 

**nargs** 

The **nargs** item indicates the number of 16-bit cells required to represent the parameters passed to **this** method, including the **this** pointer if **this** method is a virtual method. 

Parameters of type int are represented in two 16-bit cells, while all others are represented in one 16-bit cell. 

**max_locals** 

The **max_locals** item indicates the number of 16-bit cells required to represent the local variables declared by this method, not including the parameters passed to this method on invocation.<SUP>[8]</SUP> 

Local variables of type ****int**** are represented in two 16-bit cells, while all others are represented in one 16-bit cell. If an entry in the local variables array of the stack frame is reused to store more than one local variable (for example, local variables from separate scopes), the number of cells required for storage is two if one or more of the local variables is of type ****int****. 

**bytecodes[]** 

The **bytecodes** item represents an array of Java Card **bytecodes** that implement this method. Valid instructions are defined in [[7._Java_Card_Virtual_Machine_Instruction_Set| Chapter 7]], "Java Card Virtual Machine Instruction Set." The **impdep1** and **impdep2** **bytecodes** cannot be present in the **bytecodes** array item. 

If this method is abstract the **bytecodes** item must contain zero elements.