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Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Polyglot	on	the	JVM	with	Graal
Akihiro Nishikawa
May 20, 2017
JJUG	CCC	2017	Spring
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Safe	Harbor	Statement
The	following	is	intended	to	outline	our	general	product	direction.	It	is	intended	for	
information	purposes	only,	and	may	not	be	incorporated	into	any	contract.	It	is	not	a	
commitment	to	deliver	any	material,	code,	or	functionality,	and	should	not	be	relied	upon	
in	making	purchasing	decisions.	The	development,	release,	and	timing	of	any	features	or	
functionality	described	for	Oracle’s	products	remains	at	the	sole	discretion	of	Oracle.
2
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Program	Agenda
3
What’s	Graal?	What’s	Graal VM?
Polyglot	in	Graal VM
How	to	use
Appendix
1
2
3
4
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What’s	Graal?	What’s	Graal VM?
4
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GraalとGraal VM
• speculative optimizationを得意とする、Javaで記述されたJITコンパイラ
– HotSpotベース
– 種々の言語の実行パフォーマンス向上を目指して設計
– JVMCI (Java-Level	JVM	Compiler	Interface、 JEP	243) 準拠
– Java 9には実験的機能として搭載
5
Graal
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
GraalとGraal VM
• GraalやTruffle、その他の言語がバンドルされたJVM
6
Graal VM
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GraalとGraal VM
C++
Java
HotSpot
Compiler Interface
Client Server
HotSpot
JVMCI
Graal
HotSpot	VM Graal VM
Compiler
Interface
Client
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Polyglot	in	Graal VM
8
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The	One	VM	Concept
High	performance	polyglot	virtual	machine
9
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The	Ruby	Logo	is	Copyright	(c)	2006,	Yukihiro	Matsumoto.	It	is	licensed	under	the	terms	of	the	Creative	Commons	Attribution-ShareAlike 2.5	agreement
JS	Logo	Copyright	(c)	2011	Christopher	Williams	<chris@iterativedesigns.com>,	MIT		licence
You	can	distribute	the	R	logo	under	the	terms	of	the	Creative	Commons	Attribution-ShareAlike 4.0	International	license	(CC-BY-SA	4.0)	or	(at	your	option)	the	GNU	General	Public	License	version	2	(GPL-2).
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Impl Impl Impl Impl
11
VM VM VM VM
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VM
Impl Impl Impl Impl
12
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• JavaScript
– ECMAScript2016のスコアはV8より良好
– パフォーマンスもV8と同等
– node.jsのフルサポート
• R
– 統計解析向けのプログラミング言語及
びその開発実行環境
13
• Ruby
– JRubyのフォーク
– 5〜10倍ほど高性能
• C、C++、Fortran
– LLVM(Sulong)を使ってNative	
Languageをサポート
Graal	VM	Polyglot
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Graal	VM	Polyglot
C
HotSpot
JVMCI
Graal
Truffle
LLVM
(Sulong)
RRubyJavaScript
Java
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Truffle
• Graalコンパイラと一緒に使うことで、Truffleインタプリタは自動的にJITコン
パイルされ、通常のJavaのパフォーマンスを出すことができる
• 実行時に自己最適化を実行する抽象構文木(AST)インタープリタを構築
するための基本的な基盤ならびにツール(TruffleDSL)を提供
15
シンプルなインタプリタとして言語を実装するためのフレームワーク
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 16
ネイティブモジュールを含めて互換性を担保
Graal.jsのアーキテクチャ
C++JavaScript Java
nodeモジュール(Javaスクリプトのみ)
node標準ライブラリ
V8	API
Thread pool
(libeio)
Event loop
(libev)
DNS
(c-ares)
crypto
(OpenSSL)
Graal.js JavaScript	Engine
Adapter	V8	API
to	Graal.js (via	JNI)
Native	
extensions
node	bindings	(socket,	http,	…)
nodeモジュール
(Native
extension)
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
FastR
• Goal:	RのためのTruffleスタックのメリットを認識すること
– CやC++といったNative	Languageを使わなくても優れたパフォーマンス
– データの重いアプリケーションと並列アプリケーション向けに設計
– CRAN	/	Bioconductorリポジトリのサポート
• GNU	Rの「段階的な改善」ではない
– Truffleベースの新しい実行エンジン
– GNU	Rの置換エンジンとして設計
• 最新のGNU	Rインタプリタよりも高速(2〜10倍)
17
https://github.com/graalvm/fastr
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JavaScript	in	Graal VM
18
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標準への対応
19
ECMAScript	2015	(ES6)
(16298	tests/16417	tests)
テストが通らなかった大部分はUnicode正規表現
93.4%
ECMAScript	2016	(ES7)
累乗演算子やArray.prototype.includes()にも対応
テストが通らなかった部分は、ブロックレベル関数定義や、
スプレッド演算子での特殊な条件でのテストなど
99.3%
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| Oracle	Confidential	– Internal
Octaneベンチマークの結果
0
0.2
0.4
0.6
0.8
1
1.2
1.4
V8	(5.4.500.6)
Graal.js
20
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Ruby	in	Graal VM
21
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言語とコアライブラリの標準への対応
22
Ruby言語
JRuby は 94%
96%
Rubyコアライブラリ
JRuby は 95%
99%
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
ベンチマークの結果
0
5
10
15
20
25
30
35
40
45
GraalVM
JRuby+invokedynamic
Ruby
23
Rubyを基準としたパフォーマンスの比較(大きいほど高パフォーマンス)
このテストは、Alocationや
BigIntegerのパフォーマンス
によって制約を受ける
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
“But,	it’s	easy	to	
optimize	that	kind	
of	code!”
24
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単純なローカル変数
ベクトル化してない
単純な浮動小数点の計算
基本的なループ
演算子以外使っていない
(メソッド呼び出しがない)
数値型もしくはBoolean型しか使っていない
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
“Real	Ruby	is	much	
more	complex!”
26
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ループを使わずにSmalltalk
スタイルのブロックを利用
ループの境界条件は単純
な値ではなくオブジェクト
インスタンス変数
メソッドに隠れた
ロジック
配列の利用
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コアライブラリを使って計算中間オブジェクト
別の配列を使って、配列の配
列にハッシュをマップし、変換
してハッシュに戻す
r,	g,	bのハッシュとして内
部ループのPixcelを表現
ローカル変数を使わず、
メソッド呼び出しのみ
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 29
メタプログラミング送信 動的に作成されるシンボル
実際のロジックメソッドの
動的メソッド呼び出し
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Chunky	PNG	kernels
0.01
0.1
1
10
100
1000
GraalVM
JRuby+invokedynamic
Ruby
30
Rubyを基準として比較
これらのベンチマークは、
GraalVMが完全に最適化
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
PSD.rb kernels
0.1
1
10
100
1000
GraalVM JRuby+invokedynamic Ruby
31
Rubyを基準として比較
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Polyglot
32
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REST
public	internet
REST
private	intranet
33
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REST
public	internet
34
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REST
public	internet
35
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How	we	do	polyglot	in	Graal VM
36
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Ruby
Truffle::Interop.eval('application/language', source)
value = Truffle::Interop.import(name)
Truffle::Interop.export(name)
37
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JavaScript
Interop.eval('application/language', source)
value = Interop.import(name)
Interop.export(name)
// Returns 20
Interop.eval('application/javascript', '14 + 6')
38
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
JavaScript	in	Ruby
puts Truffle::Interop.eval('application/javascript',
'14 + 6')
39
This	returns	20
JavaScript Ruby
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
JavaScript	in	Ruby
Truffle::Interop.eval('application/javascript',
"function add(a,b) {
return a + b;
}
Interop.export('add',
add.bind(this));")
add = Truffle::Interop.import('add')
puts add.call(14,2)
40
Uses	function	defined	in	JavaScript	from	Ruby
JavaScript
Ruby
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Ruby
JavaScript
41
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Ruby
JS
42
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Performance
43
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Clamp
ウォームアップ後、
秒単位での
Iterationをレポート
乱数入力があると
最適化が効かない
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Ruby
0
1000000
2000000
3000000
4000000
5000000
6000000
7000000
8000000
9000000
10000000
GraalVM JRuby+invokedynamic Ruby
Operations	Per	Second
45
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 46
JavaScript	(V8)
JavaScriptに書き換
え、 V8と組み合わ
せてみた
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Ruby	+	JavaScript	(V8)
0
50000
100000
150000
200000
250000
300000
350000
Ruby	(just	Ruby) Ruby	(Ruby	+	JS	with	V8)
Operations	Per	Second
47
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 48
V8からRhinoへ変更
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
JRuby +	JavaScript	(Rhino)
0
100000
200000
300000
400000
500000
600000
JRuby+indy	(just	Ruby) JRuby+indy	(Ruby	+	JS	with	Rhino)
Operations	Per	Second
49
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 50
Nashornで試す
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
JRuby +	JavaScript	(Nashorn)
0
100000
200000
300000
400000
500000
600000
JRuby+indy	(just	Ruby) JRuby+indy	(Ruby	+	JS	with	
Rhino)
JRuby+indy	(Ruby	+	JS	with	
Nashorn)
Operations	Per	Second
51
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Graal VM
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Ruby	+	JavaScript	(Graal VM)
0
1000000
2000000
3000000
4000000
5000000
6000000
7000000
8000000
9000000
10000000
GraalVM	(just	Ruby) GraalVM	(Ruby	+	JS) JRuby+invokedynamic Ruby
Operations	Per	Second
53
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
0
1000000
2000000
3000000
4000000
5000000
6000000
7000000
8000000
9000000
10000000
GraalVM	
(just	Ruby)
GraalVM	
(Ruby	+	JS)
JRuby+indy	
(just	Ruby)
JRuby+indy	
(Ruby	+	JS	
with	Rhino)
JRuby+indy	
(Ruby	+	JS	
with	
Nashorn)
Ruby	(just	
Ruby)
Ruby	(Ruby	
+	JS	with	
V8)
Operations	Per	Second
54
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
1
10
100
1000
10000
100000
1000000
10000000
GraalVM	
(just	Ruby)
GraalVM	
(Ruby	+	JS)
JRuby+indy	
(just	Ruby)
JRuby+indy	
(Ruby	+	JS	
with	Rhino)
JRuby+indy	
(Ruby	+	JS	
with	
Nashorn)
Ruby	(just	
Ruby)
Ruby	(Ruby	
+	JS	with	
V8)
Operations	Per	Second
55
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
How	Graal achieves	this
56
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Hotspot
JIT
57
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Hotspot
JIT
Graal
Truffle
58
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Basics	of	Truffle	and	Graal
59
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Basic	Concepts
• プログラムの表現を共通化
• 意味を失わないようにそのままに
• 表現の最適化も共通化
60
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
x + y * z
+
x *
y z
load_local x
load_local y
load_local z
call *
call +
pushq %rbp
movq %rsp, %rbp
movq %rdi, -8(%rbp)
movq %rsi, -16(%rbp)
movq %rdx, -24(%rbp)
movq -16(%rbp), %rax
movl %eax, %edx
movq -24(%rbp), %rax
imull %edx, %eax
movq -8(%rbp), %rdx
addl %edx, %eax
popq %rbp
ret
61
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
U
U U
U
U
Node Rewriting
for Profiling Feedback
AST Interpreter
Uninitialized Nodes
Node Transitions
S
U
I
D
G
Uninitialized Integer
Generic
DoubleString
T.	Würthinger,	C.	Wimmer,	A.	Wöß,	L.	Stadler,	G.	Duboscq,	C.	Humer,	G.	Richards,	D.	Simon,	
and	M.	Wolczko.	One	VM	to	rule	them	all.	In	Proceedings	of	Onward!,	2013.
62
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
U
U U
U
U I
I I
G
G
Node Rewriting
for Profiling Feedback
AST Interpreter
Rewritten Nodes
AST Interpreter
Uninitialized Nodes
Node Transitions
S
U
I
D
G
Uninitialized Integer
Generic
DoubleString
T.	Würthinger,	C.	Wimmer,	A.	Wöß,	L.	Stadler,	G.	Duboscq,	C.	Humer,	G.	Richards,	D.	Simon,	
and	M.	Wolczko.	One	VM	to	rule	them	all.	In	Proceedings	of	Onward!,	2013.
63
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
I
I I
G
G I
I I
G
G
Rewriting
ng Feedback
AST Interpreter
Rewritten Nodes
Compilation using
Partial Evaluation
Compiled Code
I
D
Uninitialized Integer
Generic
Double
T.	Würthinger,	C.	Wimmer,	A.	Wöß,	L.	Stadler,	G.	Duboscq,	C.	Humer,	G.	Richards,	D.	Simon,	
and	M.	Wolczko.	One	VM	to	rule	them	all.	In	Proceedings	of	Onward!,	2013.
64
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
T.	Würthinger,	C.	Wimmer,	A.	Wöß,	L.	Stadler,	G.	Duboscq,	C.	Humer,	G.	Richards,	D.	Simon,	
and	M.	Wolczko.	One	VM	to	rule	them	all.	In	Proceedings	of	Onward!,	2013.
I
I I
G
G I
I I
G
G
Deoptimization
to AST Interpreter
D
I
Node Rewriting to Update
Profiling Feedback
65
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
T.	Würthinger,	C.	Wimmer,	A.	Wöß,	L.	Stadler,	G.	Duboscq,	C.	Humer,	G.	Richards,	D.	Simon,	
and	M.	Wolczko.	One	VM	to	rule	them	all.	In	Proceedings	of	Onward!,	2013.
I
I
G
G D
I D
G
G D
I D
G
G
Node Rewriting to Update
Profiling Feedback
Recompilation using
Partial Evaluation
66
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 67
呼び出していたら…
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高頻度で呼び出している場合…
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異言語で作成していても
高頻度で呼び出している場合…
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Looking	at	how	effective	this	is
73
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How	to	use	Graal VM
81
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• 含まれているもの
– JVM	(RE	と DK)
– Java
– JavaScript
– Ruby
– R
– その他は将来追加予定
• バイナリをtarballとして提供
• macOS用もしくはLinux用
82
Graal VM	– everything	in	one	package	today
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 83
Java 8のGraal VMとは異なり、素のJVMを利用
Java	9では、JVMCIを使って連携
Hotspot
Graal
Truffle
JS others…Ruby
Java
C++
JVMCI
(JVM	Compiler	Interface)
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 84
Java 8のGraal VMとは異なり、素のJVMを利用
Java	9では、JVMCIを使って連携
Hotspot
Graal
Truffle
JS others…Ruby
Mavenなどを
利用
Java 9
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Appendix
85
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 86
http://www.oracle.com/technetwork/oracle-labs/program-languages
“Graal OTN”で検索
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		| 87
https://github.com/graalvm
“GitHub GraalVM”で検索
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Acknowledgements
Oracle
Danilo	Ansaloni
Stefan	Anzinger
Cosmin	Basca
Daniele	Bonetta
Matthias	Brantner
Petr	Chalupa
Jürgen	Christ
Laurent	Daynès
Gilles	Duboscq
Martin	Entlicher
Brandon	Fish
Bastian	Hossbach
Christian	Humer
Mick	Jordan
Vojin	Jovanovic
Peter	Kessler
David	Leopoldseder
Kevin	Menard
Jakub	Podlešák
Aleksandar	Prokopec
Tom	Rodriguez
Oracle	(continued)
Roland	Schatz
Chris	Seaton
Doug	Simon
Štěpán	Šindelář
Zbyněk	Šlajchrt
Lukas	Stadler
Codrut	Stancu
Jan	Štola
Jaroslav	Tulach
Michael	Van	De	Vanter
Adam	Welc
Christian	Wimmer
Christian	Wirth
Paul	Wögerer
Mario	Wolczko
Andreas	Wöß
Thomas	Würthinger
JKU	Linz
Prof.	Hanspeter	Mössenböck
Benoit	Daloze
Josef	Eisl
Thomas	Feichtinger
Matthias	Grimmer
Christian	Häubl
Josef	Haider
Christian	Huber
Stefan	Marr
Manuel	Rigger
Stefan	Rumzucker
Bernhard	Urban
University	of Edinburgh
Christophe	Dubach
Juan	José	Fumero Alfonso
Ranjeet Singh
Toomas Remmelg
LaBRI
Floréal Morandat
University	of California,	Irvine
Prof.	Michael	Franz
Gulfem	Savrun	Yeniceri
Wei	Zhang
Purdue University
Prof.	Jan	Vitek
Tomas	Kalibera
Petr	Maj
Lei	Zhao
T.	U.	Dortmund
Prof.	Peter	Marwedel
Helena	Kotthaus
Ingo	Korb
University	of California,	Davis
Prof.	Duncan	Temple	Lang
Nicholas	Ulle
University	of Lugano,	Switzerland
Prof.	Walter	Binder
Sun	Haiyang
Yudi	Zheng
Oracle	Interns
Brian	Belleville	
Miguel	Garcia
Shams	Imam
Alexey	Karyakin
Stephen	Kell
Andreas	Kunft
Volker	Lanting
Gero	Leinemann
Julian	Lettner
Joe	Nash
David	Piorkowski
Gregor	Richards
Robert	Seilbeck
Rifat	Shariyar
Alumni
Erik	Eckstein
Michael	Haupt
Christos	Kotselidis
Hyunjin	Lee
David	Leibs
Chris	Thalinger
Till	Westmann
Copyright	©	2017,	Oracle	and/or	its	affiliates.	All	rights	reserved.		|
Safe	Harbor	Statement
The	preceding	is	intended	to	outline	our	general	product	direction.	It	is	intended	for	
information	purposes	only,	and	may	not	be	incorporated	into	any	contract.	It	is	not	a	
commitment	to	deliver	any	material,	code,	or	functionality,	and	should	not	be	relied	upon	
in	making	purchasing	decisions.	The	development,	release,	and	timing	of	any	features	or	
functionality	described	for	Oracle’s	products	remains	at	the	sole	discretion	of	Oracle.
89
Polyglot on the JVM with Graal (Japanese)
Polyglot on the JVM with Graal (Japanese)

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