jni

package module
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 Go to latest Published: Oct 24, 2023 License: MIT Imports: 3 Imported by: 3

README

jni

方便集成 JNI 代码的 Go 库。

完整支持所有 JNI 功能函数：https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html

配合 https://github.com/ClarkGuan/gojni 使用，方便 Java 与 Go 代码通信。

安装

安装前准备：

使用举例

我们假设您已经安装 JDK、Go 以及 C 编译器，这里以 MacOS 平台为例：

  • 目录结构
.
└── src
    └── java
        └── com
            └── demo
                └── Main.java
  • 编写 Java 源代码
package com.demo;

public class Main {
    static {
        System.loadLibrary("hello");
    }

    public static void main(String[] args) {
        nativeHello();
        System.out.println(stringFromJNI());
    }

    private static native void nativeHello();

    private static native String stringFromJNI();
}

gojni src/java/com/demo/Main.java
  • 此时在目录中生成文件 libs.c 和 libs.go，我们修改 libs.go 文件内容如下：
package main

//
// #include <stdlib.h>
// #include <stddef.h>
// #include <stdint.h>
import "C"
import (
	"fmt"

	"github.com/ClarkGuan/jni"
)

//export jniOnLoad
func jniOnLoad(vm uintptr) {
	fmt.Println("JNI_OnLoad")
}

//export jniOnUnload
func jniOnUnload(vm uintptr) {
	fmt.Println("JNI_OnUnload")
}

//export jni_com_demo_nativeHello1
func jni_com_demo_nativeHello1(env uintptr, clazz uintptr) {
	fmt.Println("native hello form golang")
}

//export jni_com_demo_stringFromJNI2
func jni_com_demo_stringFromJNI2(env uintptr, clazz uintptr) uintptr {
	return jni.Env(env).NewString("This is string from Golang code!!!")
}

运行下面命令

go get github.com/ClarkGuan/jni@latest

将本 golang 库引入到 go.mod 文件中。

  • 运行 go build 生成 Mac 上运行的动态库文件：
go build -buildmode=c-shared -ldflags="-w -s" -v -x -o libhello.dylib

注意：需要将 JNI 的头文件引入，否则 C 编译器可能找不到。使用环境变量 CGO_CFLAGS:

CGO_CFLAGS="-I$JAVA_HOME/include -I$JAVA_HOME/include/darwin" go build -buildmode=c-shared -ldflags="-w -s" -v -x -o libhello.dylib

或者使用前面下载的 includejni 工具：

includejni go build -buildmode=c-shared -ldflags="-w -s" -v -x -o libhello.dylib

注意

includejni 工具只是帮您设置 CGO_CFLAGS 和 CGO_CXXFLAGS 环境变量。如果您可以定义 localhost 的 JDK 头文件位置，则完全不需要此工具。

  • 编译 Java 源码
javac src/java/com/demo/Main.java

  • 将 libhello.dylib 放入 Java 虚拟机可以找到的位置（通过 Java 环境变量 java.library.path 指定）

  • 运行 Java 程序

java -cp src com.demo.Main
  • 运行结果
JNI_OnLoad
native hello form golang
This is string from Golang code!!!

Documentation

Index

Constants

View Source 
const (
	JNI_VERSION_1_1 = 0x00010001
	JNI_VERSION_1_2 = 0x00010002
	JNI_VERSION_1_4 = 0x00010004
	JNI_VERSION_1_6 = 0x00010006
	JNI_VERSION_1_8 = 0x00010008
	JNI_VERSION_9   = 0x00090000
	JNI_VERSION_10  = 0x000a0000

	JNI_FALSE = 0
	JNI_TRUE  = 1

	JNI_OK        = 0    /* success */
	JNI_ERR       = (-1) /* unknown error */
	JNI_EDETACHED = (-2) /* thread detached from the VM */
	JNI_EVERSION  = (-3) /* JNI version error */
	JNI_ENOMEM    = (-4) /* not enough memory */
	JNI_EEXIST    = (-5) /* VM already created */
	JNI_EINVAL    = (-6) /* invalid arguments */

	JNI_COMMIT = 1
	JNI_ABORT  = 2
)

Variables

This section is empty.

Functions

func Bool 

func Bool(b uint8) bool

func ByteSlicePtr 

func ByteSlicePtr(b []byte) unsafe.Pointer

func CFree 

func CFree(p unsafe.Pointer)

func CMalloc 

func CMalloc(capacity int) unsafe.Pointer

Types

type Env 

type Env uintptr

func (Env) AllocObject 

func (env Env) AllocObject(clazz Jclass) Jobject

func (Env) CallBooleanMethodA 

func (env Env) CallBooleanMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) bool

func (Env) CallByteMethodA 

func (env Env) CallByteMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) byte

func (Env) CallCharMethodA 

func (env Env) CallCharMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) uint16

func (Env) CallDoubleMethodA 

func (env Env) CallDoubleMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) float64

func (Env) CallFloatMethodA 

func (env Env) CallFloatMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) float32

func (Env) CallIntMethodA 

func (env Env) CallIntMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) int

func (Env) CallLongMethodA 

func (env Env) CallLongMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) int64

func (Env) CallNonvirtualBooleanMethodA 

func (env Env) CallNonvirtualBooleanMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) bool

func (Env) CallNonvirtualByteMethodA 

func (env Env) CallNonvirtualByteMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) byte

func (Env) CallNonvirtualCharMethodA 

func (env Env) CallNonvirtualCharMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) uint16

func (Env) CallNonvirtualDoubleMethodA 

func (env Env) CallNonvirtualDoubleMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) float64

func (Env) CallNonvirtualFloatMethodA 

func (env Env) CallNonvirtualFloatMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) float32

func (Env) CallNonvirtualIntMethodA 

func (env Env) CallNonvirtualIntMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) int

func (Env) CallNonvirtualLongMethodA 

func (env Env) CallNonvirtualLongMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) int64

func (Env) CallNonvirtualObjectMethodA 

func (env Env) CallNonvirtualObjectMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) Jobject

func (Env) CallNonvirtualShortMethodA 

func (env Env) CallNonvirtualShortMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue) int16

func (Env) CallNonvirtualVoidMethodA 

func (env Env) CallNonvirtualVoidMethodA(obj Jobject, clazz Jclass, methodID JmethodID, args ...Jvalue)

func (Env) CallObjectMethodA 

func (env Env) CallObjectMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) Jobject

func (Env) CallShortMethodA 

func (env Env) CallShortMethodA(obj Jobject, methodID JmethodID, args ...Jvalue) int16

func (Env) CallStaticBooleanMethodA 

func (env Env) CallStaticBooleanMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) bool

func (Env) CallStaticByteMethodA 

func (env Env) CallStaticByteMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) byte

func (Env) CallStaticCharMethodA 

func (env Env) CallStaticCharMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) uint16

func (Env) CallStaticDoubleMethodA 

func (env Env) CallStaticDoubleMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) float64

func (Env) CallStaticFloatMethodA 

func (env Env) CallStaticFloatMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) float32

func (Env) CallStaticIntMethodA 

func (env Env) CallStaticIntMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) int

func (Env) CallStaticLongMethodA 

func (env Env) CallStaticLongMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) int64

func (Env) CallStaticObjectMethodA 

func (env Env) CallStaticObjectMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) Jobject

func (Env) CallStaticShortMethodA 

func (env Env) CallStaticShortMethodA(clazz Jclass, methodID JmethodID, args ...Jvalue) int16

func (Env) CallStaticVoidMethodA 

func (env Env) CallStaticVoidMethodA(cls Jclass, methodID JmethodID, args ...Jvalue)

func (Env) CallVoidMethodA 

func (env Env) CallVoidMethodA(obj Jobject, methodID JmethodID, args ...Jvalue)

func (Env) DeleteGlobalRef 

func (env Env) DeleteGlobalRef(gref Jobject)

func (Env) DeleteLocalRef 

func (env Env) DeleteLocalRef(obj Jobject)

func (Env) DeleteWeakGlobalRef 

func (env Env) DeleteWeakGlobalRef(ref Jweak)

func (Env) EnsureLocalCapacity 

func (env Env) EnsureLocalCapacity(capacity int) int

func (Env) ExceptionCheck 

func (env Env) ExceptionCheck() bool

func (Env) ExceptionClear 

func (env Env) ExceptionClear()

func (Env) ExceptionDescribe 

func (env Env) ExceptionDescribe()

func (Env) ExceptionOccurred 

func (env Env) ExceptionOccurred() Jthrowable

func (Env) FatalError 

func (env Env) FatalError(msg string)

func (Env) FindClass 

func (env Env) FindClass(name string) Jclass

func (Env) FromReflectedField 

func (env Env) FromReflectedField(field Jobject) JfieldID

func (Env) FromReflectedMethod 

func (env Env) FromReflectedMethod(method Jobject) JmethodID

func (Env) GetArrayLength 

func (env Env) GetArrayLength(array Jarray) int

func (Env) GetBooleanArrayElement 

func (env Env) GetBooleanArrayElement(array JbooleanArray, index int) bool

func (Env) GetBooleanArrayRegion 

func (env Env) GetBooleanArrayRegion(array JbooleanArray, start int, buf []bool)

func (Env) GetBooleanField 

func (env Env) GetBooleanField(obj Jobject, fieldID JfieldID) bool

func (Env) GetByteArrayElement 

func (env Env) GetByteArrayElement(array JbyteArray, index int) byte

func (Env) GetByteArrayRegion 

func (env Env) GetByteArrayRegion(array JbyteArray, start int, buf []byte)

func (Env) GetByteField 

func (env Env) GetByteField(obj Jobject, fieldID JfieldID) byte

func (Env) GetCharArrayElement 

func (env Env) GetCharArrayElement(array JcharArray, index int) uint16

func (Env) GetCharArrayRegion 

func (env Env) GetCharArrayRegion(array JcharArray, start int, buf []uint16)

func (Env) GetCharField 

func (env Env) GetCharField(obj Jobject, fieldID JfieldID) uint16

func (Env) GetDirectBufferAddress 

func (env Env) GetDirectBufferAddress(buf Jobject) unsafe.Pointer

func (Env) GetDirectBufferCapacity 

func (env Env) GetDirectBufferCapacity(buf Jobject) int

func (Env) GetDoubleArrayElement 

func (env Env) GetDoubleArrayElement(array JdoubleArray, index int) float64

func (Env) GetDoubleArrayRegion 

func (env Env) GetDoubleArrayRegion(array JdoubleArray, start int, buf []float64)

func (Env) GetDoubleField 

func (env Env) GetDoubleField(obj Jobject, fieldID JfieldID) float64

func (Env) GetFieldID 

func (env Env) GetFieldID(clazz Jclass, name string, sig string) JfieldID

func (Env) GetFloatArrayElement 

func (env Env) GetFloatArrayElement(array JfloatArray, index int) float32

func (Env) GetFloatArrayRegion 

func (env Env) GetFloatArrayRegion(array JfloatArray, start int, buf []float32)

func (Env) GetFloatField 

func (env Env) GetFloatField(obj Jobject, fieldID JfieldID) float32

func (Env) GetIntArrayElement 

func (env Env) GetIntArrayElement(array JintArray, index int) int

func (Env) GetIntArrayRegion 

func (env Env) GetIntArrayRegion(array JintArray, start int, buf []int32)

func (Env) GetIntField 

func (env Env) GetIntField(obj Jobject, fieldID JfieldID) int

func (Env) GetJavaVM 

func (env Env) GetJavaVM() (VM, int)

func (Env) GetLongArrayElement 

func (env Env) GetLongArrayElement(array JlongArray, index int) int64

func (Env) GetLongArrayRegion 

func (env Env) GetLongArrayRegion(array JlongArray, start int, buf []int64)

func (Env) GetLongField 

func (env Env) GetLongField(obj Jobject, fieldID JfieldID) int64

func (Env) GetMethodID 

func (env Env) GetMethodID(clazz Jclass, name string, sig string) JmethodID

func (Env) GetModule 

func (env Env) GetModule(clazz Jclass) Jobject

func (Env) GetObjectArrayElement 

func (env Env) GetObjectArrayElement(array JobjectArray, index int) Jobject

func (Env) GetObjectClass 

func (env Env) GetObjectClass(obj Jobject) Jclass

func (Env) GetObjectField 

func (env Env) GetObjectField(obj Jobject, fieldID JfieldID) Jobject

func (Env) GetObjectRefType 

func (env Env) GetObjectRefType(obj Jobject) RefType

func (Env) GetPrimitiveArrayCritical 

func (env Env) GetPrimitiveArrayCritical(array Jarray) unsafe.Pointer

func (Env) GetShortArrayElement 

func (env Env) GetShortArrayElement(array JshortArray, index int) int16

func (Env) GetShortArrayRegion 

func (env Env) GetShortArrayRegion(array JshortArray, start int, buf []int16)

func (Env) GetShortField 

func (env Env) GetShortField(obj Jobject, fieldID JfieldID) int16

func (Env) GetStaticBooleanField 

func (env Env) GetStaticBooleanField(clazz Jclass, fieldID JfieldID) bool

func (Env) GetStaticByteField 

func (env Env) GetStaticByteField(clazz Jclass, fieldID JfieldID) byte

func (Env) GetStaticCharField 

func (env Env) GetStaticCharField(clazz Jclass, fieldID JfieldID) uint16

func (Env) GetStaticDoubleField 

func (env Env) GetStaticDoubleField(clazz Jclass, fieldID JfieldID) float64

func (Env) GetStaticFieldID 

func (env Env) GetStaticFieldID(clazz Jclass, name string, sig string) JfieldID

func (Env) GetStaticFloatField 

func (env Env) GetStaticFloatField(clazz Jclass, fieldID JfieldID) float32

func (Env) GetStaticIntField 

func (env Env) GetStaticIntField(clazz Jclass, fieldID JfieldID) int

func (Env) GetStaticLongField 

func (env Env) GetStaticLongField(clazz Jclass, fieldID JfieldID) int64

func (Env) GetStaticMethodID 

func (env Env) GetStaticMethodID(clazz Jclass, name string, sig string) JmethodID

func (Env) GetStaticObjectField 

func (env Env) GetStaticObjectField(clazz Jclass, fieldID JfieldID) Jobject

func (Env) GetStaticShortField 

func (env Env) GetStaticShortField(clazz Jclass, fieldID JfieldID) int16

func (Env) GetStringLength 

func (env Env) GetStringLength(str Jstring) int

func (Env) GetStringUTF 

func (env Env) GetStringUTF(ptr Jstring) []byte

func (Env) GetSuperclass 

func (env Env) GetSuperclass(sub Jclass) Jclass

func (Env) GetVersion 

func (env Env) GetVersion() int

func (Env) IsAssignableFrom 

func (env Env) IsAssignableFrom(sub Jclass, sup Jclass) bool

func (Env) IsInstanceOf 

func (env Env) IsInstanceOf(obj Jobject, clazz Jclass) bool

func (Env) IsSameObject 

func (env Env) IsSameObject(obj1 Jobject, obj2 Jobject) bool

func (Env) MonitorEnter 

func (env Env) MonitorEnter(obj Jobject) int

func (Env) MonitorExit 

func (env Env) MonitorExit(obj Jobject) int

func (Env) NewBooleanArray 

func (env Env) NewBooleanArray(len int) JbooleanArray

func (Env) NewByteArray 

func (env Env) NewByteArray(len int) JbyteArray

func (Env) NewCharArray 

func (env Env) NewCharArray(len int) JcharArray

func (Env) NewDirectByteBuffer 

func (env Env) NewDirectByteBuffer(address unsafe.Pointer, capacity int) Jobject

func (Env) NewDoubleArray 

func (env Env) NewDoubleArray(len int) JdoubleArray

func (Env) NewFloatArray 

func (env Env) NewFloatArray(len int) JfloatArray

func (Env) NewGlobalRef 

func (env Env) NewGlobalRef(lobj Jobject) Jobject

func (Env) NewIntArray 

func (env Env) NewIntArray(len int) JintArray

func (Env) NewLocalRef 

func (env Env) NewLocalRef(ref Jobject) Jobject

func (Env) NewLongArray 

func (env Env) NewLongArray(len int) JlongArray

func (Env) NewObjectA 

func (env Env) NewObjectA(clazz Jclass, methodID JmethodID, args ...Jvalue) Jobject

func (Env) NewObjectArray 

func (env Env) NewObjectArray(len int, clazz Jclass, init Jobject) JobjectArray

func (Env) NewShortArray 

func (env Env) NewShortArray(len int) JshortArray

func (Env) NewString 

func (env Env) NewString(s string) Jstring

func (Env) NewWeakGlobalRef 

func (env Env) NewWeakGlobalRef(obj Jobject) Jweak

func (Env) PopLocalFrame 

func (env Env) PopLocalFrame(result Jobject) Jobject

func (Env) PushLocalFrame 

func (env Env) PushLocalFrame(capacity int) int

func (Env) ReleasePrimitiveArrayCritical 

func (env Env) ReleasePrimitiveArrayCritical(array Jarray, carray unsafe.Pointer, mode int)

func (Env) SetBooleanArrayElement 

func (env Env) SetBooleanArrayElement(array JbooleanArray, index int, v bool)

func (Env) SetBooleanArrayRegion 

func (env Env) SetBooleanArrayRegion(array JbooleanArray, start int, buf []bool)

func (Env) SetBooleanField 

func (env Env) SetBooleanField(obj Jobject, fieldID JfieldID, val bool)

func (Env) SetByteArrayElement 

func (env Env) SetByteArrayElement(array JbyteArray, index int, v byte)

func (Env) SetByteArrayRegion 

func (env Env) SetByteArrayRegion(array JbyteArray, start int, buf []byte)

func (Env) SetByteField 

func (env Env) SetByteField(obj Jobject, fieldID JfieldID, val byte)

func (Env) SetCharArrayElement 

func (env Env) SetCharArrayElement(array JcharArray, index int, v uint16)

func (Env) SetCharArrayRegion 

func (env Env) SetCharArrayRegion(array JcharArray, start int, buf []uint16)

func (Env) SetCharField 

func (env Env) SetCharField(obj Jobject, fieldID JfieldID, val uint16)

func (Env) SetDoubleArrayElement 

func (env Env) SetDoubleArrayElement(array JdoubleArray, index int, v float64)

func (Env) SetDoubleArrayRegion 

func (env Env) SetDoubleArrayRegion(array JdoubleArray, start int, buf []float64)

func (Env) SetDoubleField 

func (env Env) SetDoubleField(obj Jobject, fieldID JfieldID, val float64)

func (Env) SetFloatArrayElement 

func (env Env) SetFloatArrayElement(array JfloatArray, index int, v float32)

func (Env) SetFloatArrayRegion 

func (env Env) SetFloatArrayRegion(array JfloatArray, start int, buf []float32)

func (Env) SetFloatField 

func (env Env) SetFloatField(obj Jobject, fieldID JfieldID, val float32)

func (Env) SetIntArrayElement 

func (env Env) SetIntArrayElement(array JintArray, index int, v int)

func (Env) SetIntArrayRegion 

func (env Env) SetIntArrayRegion(array JintArray, start int, buf []int32)

func (Env) SetIntField 

func (env Env) SetIntField(obj Jobject, fieldID JfieldID, val int)

func (Env) SetLongArrayElement 

func (env Env) SetLongArrayElement(array JlongArray, index int, v int64)

func (Env) SetLongArrayRegion 

func (env Env) SetLongArrayRegion(array JlongArray, start int, buf []int64)

func (Env) SetLongField 

func (env Env) SetLongField(obj Jobject, fieldID JfieldID, val int64)

func (Env) SetObjectArrayElement 

func (env Env) SetObjectArrayElement(array JobjectArray, index int, val Jobject)

func (Env) SetObjectField 

func (env Env) SetObjectField(obj Jobject, fieldID JfieldID, val Jobject)

func (Env) SetShortArrayElement 

func (env Env) SetShortArrayElement(array JshortArray, index int, v int16)

func (Env) SetShortArrayRegion 

func (env Env) SetShortArrayRegion(array JshortArray, start int, buf []int16)

func (Env) SetShortField 

func (env Env) SetShortField(obj Jobject, fieldID JfieldID, val int16)

func (Env) SetStaticBooleanField 

func (env Env) SetStaticBooleanField(clazz Jclass, fieldID JfieldID, value bool)

func (Env) SetStaticByteField 

func (env Env) SetStaticByteField(clazz Jclass, fieldID JfieldID, value byte)

func (Env) SetStaticCharField 

func (env Env) SetStaticCharField(clazz Jclass, fieldID JfieldID, value uint16)

func (Env) SetStaticDoubleField 

func (env Env) SetStaticDoubleField(clazz Jclass, fieldID JfieldID, value float64)

func (Env) SetStaticFloatField 

func (env Env) SetStaticFloatField(clazz Jclass, fieldID JfieldID, value float32)

func (Env) SetStaticIntField 

func (env Env) SetStaticIntField(clazz Jclass, fieldID JfieldID, value int)

func (Env) SetStaticLongField 

func (env Env) SetStaticLongField(clazz Jclass, fieldID JfieldID, value int64)

func (Env) SetStaticObjectField 

func (env Env) SetStaticObjectField(clazz Jclass, fieldID JfieldID, value Jobject)

func (Env) SetStaticShortField 

func (env Env) SetStaticShortField(clazz Jclass, fieldID JfieldID, value int16)

func (Env) Throw 

func (env Env) Throw(obj Jthrowable) int

func (Env) ThrowNew 

func (env Env) ThrowNew(clazz Jclass, msg string) int

func (Env) ToReflectedField 

func (env Env) ToReflectedField(cls Jclass, fieldID JfieldID, isStatic bool) Jobject

func (Env) ToReflectedMethod 

func (env Env) ToReflectedMethod(cls Jclass, methodID JmethodID, isStatic bool) Jobject

type Jarray 

type Jarray = uintptr

type JbooleanArray 

type JbooleanArray = uintptr

type JbyteArray 

type JbyteArray = uintptr

type JcharArray 

type JcharArray = uintptr

type Jclass 

type Jclass = uintptr

type JdoubleArray 

type JdoubleArray = uintptr

type JfieldID 

type JfieldID = uintptr

type JfloatArray 

type JfloatArray = uintptr

type JintArray 

type JintArray = uintptr

type JlongArray 

type JlongArray = uintptr

type JmethodID 

type JmethodID = uintptr

type Jobject 

type Jobject = uintptr

type JobjectArray 

type JobjectArray = uintptr

type JshortArray 

type JshortArray = uintptr

type Jstring 

type Jstring = uintptr

type Jthrowable 

type Jthrowable = uintptr

type Jvalue 

type Jvalue = uint64

func BooleanValue 

func BooleanValue(b bool) Jvalue

func DoubleValue 

func DoubleValue(f float64) Jvalue

func FloatValue 

func FloatValue(f float32) Jvalue

func Int16Value 

func Int16Value(i int16) Jvalue

func Int32Value 

func Int32Value(i int32) Jvalue

func Int8Value 

func Int8Value(i int8) Jvalue

func IntValue 

func IntValue(i int) Jvalue

type Jweak 

type Jweak = uintptr

type RefType 

type RefType int
const (
	Invalid RefType = iota
	Local
	Global
	WeakGlobal
)

type VM 

type VM uintptr

func (VM) AttachCurrentThread 

func (vm VM) AttachCurrentThread() (Env, int)

func (VM) AttachCurrentThreadAsDaemon 

func (vm VM) AttachCurrentThreadAsDaemon() (Env, int)

func (VM) DestroyJavaVM 

func (vm VM) DestroyJavaVM() int

func (VM) DetachCurrentThread 

func (vm VM) DetachCurrentThread() int

func (VM) GetEnv 

func (vm VM) GetEnv(version int) (Env, int)

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