Java VM Type Signature(JNI Type Signature)

Type Signature	Java Type
Z	boolean
B	byte
C	char
S	short
I	int
J	long
F	float
D	double
L fully-qualified-class ;	fully-qualified-class
[ type	type[]
( arg-types ) ret-type	method type

 

Ex)

터미널에서 "javap -s java.lang.String" 명령어 입력하면 메서드의 JNI 타입 Signature 예시를 볼 수 있습니다.

static int indexOf(byte[], byte, int, java.lang.String, int);
==> ([BBILjava/lang/String;I)I

public java.lang.CharSequence subSequence(int, int);
==> (II)Ljava/lang/CharSequence;

public java.lang.String[] split(java.lang.String, int);
==> (Ljava/lang/String;I)[Ljava/lang/String;

public static java.lang.String valueOf(java.lang.Object);
==> (Ljava/lang/Object;)Ljava/lang/String;

 

※ 출처

https://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/types.html