#![doc(html_root_url = "https://docs.rs/jni-sys/0.3.0")]
#![allow(non_snake_case, non_camel_case_types)]
#![warn(rust_2018_idioms, missing_debug_implementations)]
#![no_std]

use core::ffi::c_char;
use core::ffi::c_void;

use jni_sys_macros::jni_to_union;

// FIXME is this sufficiently correct?
pub type va_list = *mut c_void;

pub type jint = i32;
pub type jlong = i64;
pub type jbyte = i8;
pub type jboolean = bool;
pub type jchar = u16;
pub type jshort = i16;
pub type jfloat = f32;
pub type jdouble = f64;
pub type jsize = jint;

#[derive(Debug)]
pub enum _jobject {}
pub type jobject = *mut _jobject;
pub type jclass = jobject;
pub type jthrowable = jobject;
pub type jstring = jobject;
pub type jarray = jobject;
pub type jbooleanArray = jarray;
pub type jbyteArray = jarray;
pub type jcharArray = jarray;
pub type jshortArray = jarray;
pub type jintArray = jarray;
pub type jlongArray = jarray;
pub type jfloatArray = jarray;
pub type jdoubleArray = jarray;
pub type jobjectArray = jarray;
pub type jweak = jobject;

#[repr(C)]
#[derive(Copy)]
pub union jvalue {
    pub z: jboolean,
    pub b: jbyte,
    pub c: jchar,
    pub s: jshort,
    pub i: jint,
    pub j: jlong,
    pub f: jfloat,
    pub d: jdouble,
    pub l: jobject,
}

impl Clone for jvalue {
    fn clone(&self) -> Self {
        *self
    }
}
impl core::fmt::Debug for jvalue {
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        let b = unsafe { self.b };
        // For all except `jboolean` then any bitwise pattern is a valid value
        // so even though we don't know which specific type the given `jvalue`
        // represents we can effectively cast it to all possible types.
        f.debug_struct("jvalue")
            .field(
                "z",
                &if b == 0 {
                    "false"
                } else if b == 1 {
                    "true"
                } else {
                    "invalid"
                },
            )
            .field("b", unsafe { &self.b })
            .field("c", unsafe { &self.c })
            .field("s", unsafe { &self.s })
            .field("i", unsafe { &self.i })
            .field("j", unsafe { &self.j })
            .field("f", unsafe { &self.f })
            .field("d", unsafe { &self.d })
            .field("l", unsafe { &self.l })
            .finish()
    }
}

#[derive(Debug)]
pub enum _jfieldID {}
pub type jfieldID = *mut _jfieldID;
#[derive(Debug)]
pub enum _jmethodID {}
pub type jmethodID = *mut _jmethodID;

#[derive(Clone, Copy, Debug)]
#[repr(C)]
pub enum jobjectRefType {
    JNIInvalidRefType = 0,
    JNILocalRefType = 1,
    JNIGlobalRefType = 2,
    JNIWeakGlobalRefType = 3,
}

pub const JNI_FALSE: jboolean = false;
pub const JNI_TRUE: jboolean = true;

pub const JNI_OK: jint = 0;
pub const JNI_ERR: jint = -1;
pub const JNI_EDETACHED: jint = -2;
pub const JNI_EVERSION: jint = -3;
pub const JNI_ENOMEM: jint = -4;
pub const JNI_EEXIST: jint = -5;
pub const JNI_EINVAL: jint = -6;

pub const JNI_COMMIT: jint = 1;
pub const JNI_ABORT: jint = 2;

pub const JNI_VERSION_1_1: jint = 0x00010001;
pub const JNI_VERSION_1_2: jint = 0x00010002;
pub const JNI_VERSION_1_4: jint = 0x00010004;
pub const JNI_VERSION_1_6: jint = 0x00010006;
pub const JNI_VERSION_1_8: jint = 0x00010008;
pub const JNI_VERSION_9: jint = 0x00090000;
pub const JNI_VERSION_10: jint = 0x000a0000;
pub const JNI_VERSION_19: jint = 0x00130000;
pub const JNI_VERSION_20: jint = 0x00140000;
pub const JNI_VERSION_21: jint = 0x00150000;

#[repr(C)]
#[derive(Copy, Debug)]
pub struct JNINativeMethod {
    pub name: *mut c_char,
    pub signature: *mut c_char,
    pub fnPtr: *mut c_void,
}

impl Clone for JNINativeMethod {
    fn clone(&self) -> Self {
        *self
    }
}

pub type JNIEnv = *const JNINativeInterface_;
pub type JavaVM = *const JNIInvokeInterface_;

#[repr(C)]
#[non_exhaustive]
#[jni_to_union]
#[derive(Copy, Clone)]
pub struct JNINativeInterface_ {
    #[jni_added("reserved")]
    pub reserved0: *mut c_void,
    #[jni_added("reserved")]
    pub reserved1: *mut c_void,
    #[jni_added("reserved")]
    pub reserved2: *mut c_void,
    #[jni_added("reserved")]
    pub reserved3: *mut c_void,
    #[jni_added("1.1")]
    pub GetVersion: unsafe extern "system" fn(env: *mut JNIEnv) -> jint,
    pub DefineClass: unsafe extern "system" fn(
        env: *mut JNIEnv,
        name: *const c_char,
        loader: jobject,
        buf: *const jbyte,
        len: jsize,
    ) -> jclass,
    pub FindClass: unsafe extern "system" fn(env: *mut JNIEnv, name: *const c_char) -> jclass,
    #[jni_added("1.2")]
    pub FromReflectedMethod:
        unsafe extern "system" fn(env: *mut JNIEnv, method: jobject) -> jmethodID,
    #[jni_added("1.2")]
    pub FromReflectedField: unsafe extern "system" fn(env: *mut JNIEnv, field: jobject) -> jfieldID,
    #[jni_added("1.2")]
    pub ToReflectedMethod: unsafe extern "system" fn(
        env: *mut JNIEnv,
        cls: jclass,
        methodID: jmethodID,
        isStatic: jboolean,
    ) -> jobject,
    pub GetSuperclass: unsafe extern "system" fn(env: *mut JNIEnv, sub: jclass) -> jclass,
    pub IsAssignableFrom:
        unsafe extern "system" fn(env: *mut JNIEnv, sub: jclass, sup: jclass) -> jboolean,
    #[jni_added("1.2")]
    pub ToReflectedField: unsafe extern "system" fn(
        env: *mut JNIEnv,
        cls: jclass,
        fieldID: jfieldID,
        isStatic: jboolean,
    ) -> jobject,
    pub Throw: unsafe extern "system" fn(env: *mut JNIEnv, obj: jthrowable) -> jint,
    pub ThrowNew:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, msg: *const c_char) -> jint,
    pub ExceptionOccurred: unsafe extern "system" fn(env: *mut JNIEnv) -> jthrowable,
    pub ExceptionDescribe: unsafe extern "system" fn(env: *mut JNIEnv),
    pub ExceptionClear: unsafe extern "system" fn(env: *mut JNIEnv),
    pub FatalError: unsafe extern "system" fn(env: *mut JNIEnv, msg: *const c_char) -> !,
    #[jni_added("1.2")]
    pub PushLocalFrame: unsafe extern "system" fn(env: *mut JNIEnv, capacity: jint) -> jint,
    #[jni_added("1.2")]
    pub PopLocalFrame: unsafe extern "system" fn(env: *mut JNIEnv, result: jobject) -> jobject,
    pub NewGlobalRef: unsafe extern "system" fn(env: *mut JNIEnv, lobj: jobject) -> jobject,
    pub DeleteGlobalRef: unsafe extern "system" fn(env: *mut JNIEnv, gref: jobject),
    pub DeleteLocalRef: unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject),
    pub IsSameObject:
        unsafe extern "system" fn(env: *mut JNIEnv, obj1: jobject, obj2: jobject) -> jboolean,
    #[jni_added("1.2")]
    pub NewLocalRef: unsafe extern "system" fn(env: *mut JNIEnv, ref_: jobject) -> jobject,
    #[jni_added("1.2")]
    pub EnsureLocalCapacity: unsafe extern "system" fn(env: *mut JNIEnv, capacity: jint) -> jint,
    pub AllocObject: unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass) -> jobject,
    pub NewObject:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jobject,
    pub NewObjectV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jobject,
    pub NewObjectA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jobject,
    pub GetObjectClass: unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject) -> jclass,
    pub IsInstanceOf:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, clazz: jclass) -> jboolean,
    pub GetMethodID: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        name: *const c_char,
        sig: *const c_char,
    ) -> jmethodID,
    pub CallObjectMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jobject,
    pub CallObjectMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jobject,
    pub CallObjectMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jobject,
    pub CallBooleanMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jboolean,
    pub CallBooleanMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jboolean,

    pub CallBooleanMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jboolean,

    pub CallByteMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jbyte,

    pub CallByteMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jbyte,

    pub CallByteMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jbyte,

    pub CallCharMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jchar,

    pub CallCharMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jchar,

    pub CallCharMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jchar,

    pub CallShortMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jshort,

    pub CallShortMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jshort,

    pub CallShortMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jshort,

    pub CallIntMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jint,

    pub CallIntMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jint,

    pub CallIntMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jint,

    pub CallLongMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jlong,

    pub CallLongMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jlong,

    pub CallLongMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jlong,

    pub CallFloatMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jfloat,

    pub CallFloatMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jfloat,

    pub CallFloatMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jfloat,

    pub CallDoubleMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...) -> jdouble,

    pub CallDoubleMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ) -> jdouble,

    pub CallDoubleMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jdouble,

    pub CallVoidMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, obj: jobject, methodID: jmethodID, ...),
    pub CallVoidMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: va_list,
    ),

    pub CallVoidMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        methodID: jmethodID,
        args: *const jvalue,
    ),

    pub CallNonvirtualObjectMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jobject,

    pub CallNonvirtualObjectMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jobject,

    pub CallNonvirtualObjectMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jobject,

    pub CallNonvirtualBooleanMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jboolean,

    pub CallNonvirtualBooleanMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jboolean,

    pub CallNonvirtualBooleanMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jboolean,

    pub CallNonvirtualByteMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jbyte,

    pub CallNonvirtualByteMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jbyte,

    pub CallNonvirtualByteMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jbyte,

    pub CallNonvirtualCharMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jchar,

    pub CallNonvirtualCharMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jchar,

    pub CallNonvirtualCharMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jchar,

    pub CallNonvirtualShortMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jshort,

    pub CallNonvirtualShortMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jshort,

    pub CallNonvirtualShortMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jshort,

    pub CallNonvirtualIntMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jint,

    pub CallNonvirtualIntMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jint,

    pub CallNonvirtualIntMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jint,

    pub CallNonvirtualLongMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jlong,

    pub CallNonvirtualLongMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jlong,

    pub CallNonvirtualLongMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jlong,

    pub CallNonvirtualFloatMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jfloat,

    pub CallNonvirtualFloatMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jfloat,

    pub CallNonvirtualFloatMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jfloat,

    pub CallNonvirtualDoubleMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ) -> jdouble,

    pub CallNonvirtualDoubleMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jdouble,

    pub CallNonvirtualDoubleMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jdouble,

    pub CallNonvirtualVoidMethod: unsafe extern "C" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        ...
    ),

    pub CallNonvirtualVoidMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ),

    pub CallNonvirtualVoidMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        obj: jobject,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ),

    pub GetFieldID: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        name: *const c_char,
        sig: *const c_char,
    ) -> jfieldID,

    pub GetObjectField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jobject,

    pub GetBooleanField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jboolean,

    pub GetByteField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jbyte,

    pub GetCharField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jchar,

    pub GetShortField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jshort,

    pub GetIntField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jint,

    pub GetLongField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jlong,

    pub GetFloatField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jfloat,

    pub GetDoubleField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID) -> jdouble,

    pub SetObjectField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jobject),

    pub SetBooleanField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jboolean),

    pub SetByteField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jbyte),

    pub SetCharField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jchar),

    pub SetShortField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jshort),

    pub SetIntField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jint),

    pub SetLongField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jlong),

    pub SetFloatField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jfloat),

    pub SetDoubleField:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject, fieldID: jfieldID, val: jdouble),

    pub GetStaticMethodID: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        name: *const c_char,
        sig: *const c_char,
    ) -> jmethodID,

    pub CallStaticObjectMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jobject,

    pub CallStaticObjectMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jobject,

    pub CallStaticObjectMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jobject,

    pub CallStaticBooleanMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jboolean,

    pub CallStaticBooleanMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jboolean,

    pub CallStaticBooleanMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jboolean,

    pub CallStaticByteMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jbyte,

    pub CallStaticByteMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jbyte,

    pub CallStaticByteMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jbyte,

    pub CallStaticCharMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jchar,

    pub CallStaticCharMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jchar,

    pub CallStaticCharMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jchar,

    pub CallStaticShortMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jshort,

    pub CallStaticShortMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jshort,

    pub CallStaticShortMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jshort,

    pub CallStaticIntMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jint,

    pub CallStaticIntMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jint,

    pub CallStaticIntMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jint,

    pub CallStaticLongMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jlong,

    pub CallStaticLongMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jlong,

    pub CallStaticLongMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jlong,

    pub CallStaticFloatMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jfloat,

    pub CallStaticFloatMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jfloat,

    pub CallStaticFloatMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jfloat,

    pub CallStaticDoubleMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, clazz: jclass, methodID: jmethodID, ...) -> jdouble,

    pub CallStaticDoubleMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: va_list,
    ) -> jdouble,

    pub CallStaticDoubleMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ) -> jdouble,

    pub CallStaticVoidMethod:
        unsafe extern "C" fn(env: *mut JNIEnv, cls: jclass, methodID: jmethodID, ...),
    pub CallStaticVoidMethodV: unsafe extern "system" fn(
        env: *mut JNIEnv,
        cls: jclass,
        methodID: jmethodID,
        args: va_list,
    ),

    pub CallStaticVoidMethodA: unsafe extern "system" fn(
        env: *mut JNIEnv,
        cls: jclass,
        methodID: jmethodID,
        args: *const jvalue,
    ),

    pub GetStaticFieldID: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        name: *const c_char,
        sig: *const c_char,
    ) -> jfieldID,

    pub GetStaticObjectField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jobject,

    pub GetStaticBooleanField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jboolean,

    pub GetStaticByteField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jbyte,

    pub GetStaticCharField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jchar,

    pub GetStaticShortField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jshort,

    pub GetStaticIntField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jint,

    pub GetStaticLongField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jlong,

    pub GetStaticFloatField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jfloat,

    pub GetStaticDoubleField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID) -> jdouble,

    pub SetStaticObjectField: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        fieldID: jfieldID,
        value: jobject,
    ),

    pub SetStaticBooleanField: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        fieldID: jfieldID,
        value: jboolean,
    ),

    pub SetStaticByteField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID, value: jbyte),

    pub SetStaticCharField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID, value: jchar),

    pub SetStaticShortField: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        fieldID: jfieldID,
        value: jshort,
    ),

    pub SetStaticIntField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID, value: jint),

    pub SetStaticLongField:
        unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass, fieldID: jfieldID, value: jlong),

    pub SetStaticFloatField: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        fieldID: jfieldID,
        value: jfloat,
    ),

    pub SetStaticDoubleField: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        fieldID: jfieldID,
        value: jdouble,
    ),

    pub NewString:
        unsafe extern "system" fn(env: *mut JNIEnv, unicode: *const jchar, len: jsize) -> jstring,

    pub GetStringLength: unsafe extern "system" fn(env: *mut JNIEnv, str: jstring) -> jsize,
    pub GetStringChars: unsafe extern "system" fn(
        env: *mut JNIEnv,
        str: jstring,
        isCopy: *mut jboolean,
    ) -> *const jchar,

    pub ReleaseStringChars:
        unsafe extern "system" fn(env: *mut JNIEnv, str: jstring, chars: *const jchar),
    pub NewStringUTF: unsafe extern "system" fn(env: *mut JNIEnv, utf: *const c_char) -> jstring,
    pub GetStringUTFLength: unsafe extern "system" fn(env: *mut JNIEnv, str: jstring) -> jsize,
    pub GetStringUTFChars: unsafe extern "system" fn(
        env: *mut JNIEnv,
        str: jstring,
        isCopy: *mut jboolean,
    ) -> *const c_char,

    pub ReleaseStringUTFChars:
        unsafe extern "system" fn(env: *mut JNIEnv, str: jstring, chars: *const c_char),
    pub GetArrayLength: unsafe extern "system" fn(env: *mut JNIEnv, array: jarray) -> jsize,
    pub NewObjectArray: unsafe extern "system" fn(
        env: *mut JNIEnv,
        len: jsize,
        clazz: jclass,
        init: jobject,
    ) -> jobjectArray,

    pub GetObjectArrayElement:
        unsafe extern "system" fn(env: *mut JNIEnv, array: jobjectArray, index: jsize) -> jobject,

    pub SetObjectArrayElement: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jobjectArray,
        index: jsize,
        val: jobject,
    ),

    pub NewBooleanArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jbooleanArray,
    pub NewByteArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jbyteArray,
    pub NewCharArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jcharArray,
    pub NewShortArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jshortArray,
    pub NewIntArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jintArray,
    pub NewLongArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jlongArray,
    pub NewFloatArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jfloatArray,
    pub NewDoubleArray: unsafe extern "system" fn(env: *mut JNIEnv, len: jsize) -> jdoubleArray,
    pub GetBooleanArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbooleanArray,
        isCopy: *mut jboolean,
    ) -> *mut jboolean,

    pub GetByteArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbyteArray,
        isCopy: *mut jboolean,
    ) -> *mut jbyte,

    pub GetCharArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jcharArray,
        isCopy: *mut jboolean,
    ) -> *mut jchar,

    pub GetShortArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jshortArray,
        isCopy: *mut jboolean,
    ) -> *mut jshort,

    pub GetIntArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jintArray,
        isCopy: *mut jboolean,
    ) -> *mut jint,

    pub GetLongArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jlongArray,
        isCopy: *mut jboolean,
    ) -> *mut jlong,

    pub GetFloatArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jfloatArray,
        isCopy: *mut jboolean,
    ) -> *mut jfloat,

    pub GetDoubleArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jdoubleArray,
        isCopy: *mut jboolean,
    ) -> *mut jdouble,

    pub ReleaseBooleanArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbooleanArray,
        elems: *mut jboolean,
        mode: jint,
    ),

    pub ReleaseByteArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbyteArray,
        elems: *mut jbyte,
        mode: jint,
    ),

    pub ReleaseCharArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jcharArray,
        elems: *mut jchar,
        mode: jint,
    ),

    pub ReleaseShortArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jshortArray,
        elems: *mut jshort,
        mode: jint,
    ),

    pub ReleaseIntArrayElements:
        unsafe extern "system" fn(env: *mut JNIEnv, array: jintArray, elems: *mut jint, mode: jint),

    pub ReleaseLongArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jlongArray,
        elems: *mut jlong,
        mode: jint,
    ),

    pub ReleaseFloatArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jfloatArray,
        elems: *mut jfloat,
        mode: jint,
    ),

    pub ReleaseDoubleArrayElements: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jdoubleArray,
        elems: *mut jdouble,
        mode: jint,
    ),

    pub GetBooleanArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbooleanArray,
        start: jsize,
        l: jsize,
        buf: *mut jboolean,
    ),

    pub GetByteArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbyteArray,
        start: jsize,
        len: jsize,
        buf: *mut jbyte,
    ),

    pub GetCharArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jcharArray,
        start: jsize,
        len: jsize,
        buf: *mut jchar,
    ),

    pub GetShortArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jshortArray,
        start: jsize,
        len: jsize,
        buf: *mut jshort,
    ),

    pub GetIntArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jintArray,
        start: jsize,
        len: jsize,
        buf: *mut jint,
    ),

    pub GetLongArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jlongArray,
        start: jsize,
        len: jsize,
        buf: *mut jlong,
    ),

    pub GetFloatArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jfloatArray,
        start: jsize,
        len: jsize,
        buf: *mut jfloat,
    ),

    pub GetDoubleArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jdoubleArray,
        start: jsize,
        len: jsize,
        buf: *mut jdouble,
    ),

    pub SetBooleanArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbooleanArray,
        start: jsize,
        l: jsize,
        buf: *const jboolean,
    ),

    pub SetByteArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jbyteArray,
        start: jsize,
        len: jsize,
        buf: *const jbyte,
    ),

    pub SetCharArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jcharArray,
        start: jsize,
        len: jsize,
        buf: *const jchar,
    ),

    pub SetShortArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jshortArray,
        start: jsize,
        len: jsize,
        buf: *const jshort,
    ),

    pub SetIntArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jintArray,
        start: jsize,
        len: jsize,
        buf: *const jint,
    ),

    pub SetLongArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jlongArray,
        start: jsize,
        len: jsize,
        buf: *const jlong,
    ),

    pub SetFloatArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jfloatArray,
        start: jsize,
        len: jsize,
        buf: *const jfloat,
    ),

    pub SetDoubleArrayRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jdoubleArray,
        start: jsize,
        len: jsize,
        buf: *const jdouble,
    ),

    pub RegisterNatives: unsafe extern "system" fn(
        env: *mut JNIEnv,
        clazz: jclass,
        methods: *const JNINativeMethod,
        nMethods: jint,
    ) -> jint,

    pub UnregisterNatives: unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass) -> jint,
    pub MonitorEnter: unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject) -> jint,
    pub MonitorExit: unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject) -> jint,
    pub GetJavaVM: unsafe extern "system" fn(env: *mut JNIEnv, vm: *mut *mut JavaVM) -> jint,
    #[jni_added("1.2")]
    pub GetStringRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        str: jstring,
        start: jsize,
        len: jsize,
        buf: *mut jchar,
    ),

    #[jni_added("1.2")]
    pub GetStringUTFRegion: unsafe extern "system" fn(
        env: *mut JNIEnv,
        str: jstring,
        start: jsize,
        len: jsize,
        buf: *mut c_char,
    ),

    #[jni_added("1.2")]
    pub GetPrimitiveArrayCritical: unsafe extern "system" fn(
        env: *mut JNIEnv,
        array: jarray,
        isCopy: *mut jboolean,
    ) -> *mut c_void,

    #[jni_added("1.2")]
    pub ReleasePrimitiveArrayCritical:
        unsafe extern "system" fn(env: *mut JNIEnv, array: jarray, carray: *mut c_void, mode: jint),

    #[jni_added("1.2")]
    pub GetStringCritical: unsafe extern "system" fn(
        env: *mut JNIEnv,
        string: jstring,
        isCopy: *mut jboolean,
    ) -> *const jchar,

    #[jni_added("1.2")]
    pub ReleaseStringCritical:
        unsafe extern "system" fn(env: *mut JNIEnv, string: jstring, cstring: *const jchar),
    #[jni_added("1.2")]
    pub NewWeakGlobalRef: unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject) -> jweak,
    #[jni_added("1.2")]
    pub DeleteWeakGlobalRef: unsafe extern "system" fn(env: *mut JNIEnv, ref_: jweak),
    #[jni_added("1.2")]
    pub ExceptionCheck: unsafe extern "system" fn(env: *mut JNIEnv) -> jboolean,
    #[jni_added("1.4")]
    pub NewDirectByteBuffer: unsafe extern "system" fn(
        env: *mut JNIEnv,
        address: *mut c_void,
        capacity: jlong,
    ) -> jobject,

    #[jni_added("1.4")]
    pub GetDirectBufferAddress:
        unsafe extern "system" fn(env: *mut JNIEnv, buf: jobject) -> *mut c_void,
    #[jni_added("1.4")]
    pub GetDirectBufferCapacity: unsafe extern "system" fn(env: *mut JNIEnv, buf: jobject) -> jlong,
    #[jni_added("1.6")]
    pub GetObjectRefType:
        unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject) -> jobjectRefType,
    #[jni_added("9")]
    pub GetModule: unsafe extern "system" fn(env: *mut JNIEnv, clazz: jclass) -> jobject,

    #[jni_added("19")]
    pub IsVirtualThread: unsafe extern "system" fn(env: *mut JNIEnv, obj: jobject) -> jboolean,
}

#[repr(C)]
#[derive(Copy, Debug)]
pub struct JNIEnv_ {
    pub functions: *const JNINativeInterface_,
}

impl Clone for JNIEnv_ {
    fn clone(&self) -> Self {
        *self
    }
}

#[repr(C)]
#[derive(Copy, Debug)]
pub struct JavaVMOption {
    pub optionString: *mut c_char,
    pub extraInfo: *mut c_void,
}

impl Clone for JavaVMOption {
    fn clone(&self) -> Self {
        *self
    }
}

#[repr(C)]
#[derive(Copy, Debug)]
pub struct JavaVMInitArgs {
    pub version: jint,
    pub nOptions: jint,
    pub options: *mut JavaVMOption,
    pub ignoreUnrecognized: jboolean,
}

impl Clone for JavaVMInitArgs {
    fn clone(&self) -> Self {
        *self
    }
}

#[repr(C)]
#[derive(Copy, Debug)]
pub struct JavaVMAttachArgs {
    pub version: jint,
    pub name: *mut c_char,
    pub group: jobject,
}

impl Clone for JavaVMAttachArgs {
    fn clone(&self) -> Self {
        *self
    }
}

#[repr(C)]
#[jni_to_union]
#[non_exhaustive]
#[derive(Copy, Clone)]
pub struct JNIInvokeInterface_ {
    #[jni_added("reserved")]
    pub reserved0: *mut c_void,
    #[jni_added("reserved")]
    pub reserved1: *mut c_void,
    #[jni_added("reserved")]
    pub reserved2: *mut c_void,
    pub DestroyJavaVM: unsafe extern "system" fn(vm: *mut JavaVM) -> jint,
    pub AttachCurrentThread: unsafe extern "system" fn(
        vm: *mut JavaVM,
        penv: *mut *mut c_void,
        args: *mut c_void,
    ) -> jint,

    pub DetachCurrentThread: unsafe extern "system" fn(vm: *mut JavaVM) -> jint,

    #[jni_added("1.2")]
    pub GetEnv:
        unsafe extern "system" fn(vm: *mut JavaVM, penv: *mut *mut c_void, version: jint) -> jint,

    #[jni_added("1.4")]
    pub AttachCurrentThreadAsDaemon: unsafe extern "system" fn(
        vm: *mut JavaVM,
        penv: *mut *mut c_void,
        args: *mut c_void,
    ) -> jint,
}

extern "system" {
    pub fn JNI_GetDefaultJavaVMInitArgs(args: *mut c_void) -> jint;
    pub fn JNI_CreateJavaVM(
        pvm: *mut *mut JavaVM,
        penv: *mut *mut c_void,
        args: *mut c_void,
    ) -> jint;
    pub fn JNI_GetCreatedJavaVMs(vmBuf: *mut *mut JavaVM, bufLen: jsize, nVMs: *mut jsize) -> jint;
}