aconst_null : push null : index : visitInsn()

Description

Pushes the special null object reference onto the stack. null is a reference to no object, and has no type (null can be cast to any reference type). null conventionally represents an invalid or uncreated object. Fields, variables and the elements of object reference arrays have null as their initial value.

See also

bipush sipush ldc ldc_w ldc2_w iconst_m1 iconst_n lconst_l fconst_f dconst_d

Stack

Before	After
...	null
	...

Bytecode

Type	Description
u1	aconst_null opcode = 0x01 (1)