module JavaCall

@static if isdefined(Base, :Experimental) &&

isdefined(Base.Experimental, Symbol("@optlevel"))

Base.Experimental.@optlevel 1

export JavaObject, JavaMetaClass,

jint, jlong, jbyte, jboolean, jchar, jshort, jfloat, jdouble, jvoid,

JObject, JClass, JMethod, JConstructor, JField, JString,

JavaRef, JavaLocalRef, JavaGlobalRef, JavaNullRef,

@jimport, jcall, jfield, jlocalframe, isnull,

getname, getclass, listmethods, getreturntype, getparametertypes, classforname,

listfields, gettype,

narrow

import DataStructures: OrderedSet

using Dates

@static if Sys.iswindows()

using WinReg

import Base: convert, unsafe_convert, unsafe_string, Ptr

JULIA_COPY_STACKS = false

include("JNI.jl")

using .JNI

import .JNI.Threads

include("jvm.jl")

include("core.jl")

include("convert.jl")

include("reflect.jl")

Base.@deprecate_binding jnifunc JavaCall.JNI.jniref[]

function __init__()

global JULIA_COPY_STACKS = get(ENV, "JULIA_COPY_STACKS", "") ∈ ("1", "yes")

if ! Sys.iswindows()

# On Windows, JULIA_COPY_STACKS is not needed and causes crash

if VERSION ≥ v"1.1-" && VERSION < v"1.3-"

@warn("JavaCall does not work correctly on Julia v$VERSION. \n" *

"Either use Julia v1.0.x, or v1.3.0 or higher.\n"*

"For 1.3 onwards, please also set the environment variable `JULIA_COPY_STACKS` to be `1` or `yes`")

end

if VERSION ≥ v"1.3-" && ! JULIA_COPY_STACKS

@warn("JavaCall needs the environment variable `JULIA_COPY_STACKS` to be `1` or `yes`.\n"*

"Calling the JVM may result in undefined behavior.")

end

end

Threads.resize_nthreads!(_jmc_cache)

end # module