oracle/graaljs

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GraalJS – A high-performance, ECMAScript compliant, and embeddable JavaScript runtime for Java

Stars: 2k
Forks: 213
Open beginner issues: 0
Indexed issues: 143

Dominant language: C++
License: UPL-1.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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143 open issues indexed

[GR-57610] Implement Bytecode DSL Interpreter Open

enhancement

oracle/graaljs#1105 · 1 assignee · Opened Aug 26, 2026
node.exe --jvm --vm.cp=... xxx.js throws com.oracle.truffle.trufflenode.NativeAccess class not found! on GraalVM node.js 25.1.3 community edition Open

oracle/graaljs#1088 · 1 assignee · Opened Jul 27, 2026
graal-vm/25.0/graal-js scripts/StepTest.js hangs on GHA for 6h Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

oracle/graaljs#1056 · Opened Jun 9, 2026
js.exe & other standalone artifacts are gone; but Maven can replace their functionality, somehow... Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#1054 · 2 comments · 2 reactions · Opened May 23, 2026
Native image (x86-64 baseline) executes AVX-512 instructions during Truffle JS compilation causing SIGILL Open

oracle/graaljs#1040 · 7 comments · 1 assignee · Opened Apr 22, 2026
VS Code DAP does not bind TypeScript breakpoints from sourcemaps Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#1039 · Opened Apr 17, 2026
Debugger cannot inspect ProxyObject members in embedded GraalJS Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

oracle/graaljs#1038 · Opened Apr 17, 2026
ProxyHashSet interface Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#1011 · Opened Mar 20, 2026
Java 25 compatibility: Warnings about restricted and deprecated methods in GraalJS ScriptEngine Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

oracle/graaljs#970 · Opened Jan 8, 2026
JDK version inconsistent in Building.md Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

oracle/graaljs#962 · Opened Dec 15, 2025
Exports field of package.json is not supported by module loaders Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#957 · 1 comment · Opened Dec 8, 2025
High memory consumption of strings concatenation Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#945 · 2 comments · Opened Nov 14, 2025
Using Context : How to pass script level variables? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

oracle/graaljs#942 · 3 comments · Opened Nov 3, 2025
Performance optimisation strategies (Context vs Engine reuse) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#935 · Opened Sep 9, 2025
Eval the JavaScript script, the program crashed. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#934 · Opened Sep 9, 2025
Multithread Java applications, Context Pooling and Warmup strategies Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#929 · 2 comments · 4 reactions · Opened Aug 1, 2025
ProxyObject and equality Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#928 · 3 comments · Opened Jul 30, 2025
Unwrap polyglot.Value? Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

oracle/graaljs#922 · 1 comment · Opened Jul 2, 2025
How to redirect output Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

oracle/graaljs#916 · Opened Jun 6, 2025
Multiple Functional Interface SAM Types Not Automatically Resolved Like Nashorn (When using as callable function in JS) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#911 · Opened May 14, 2025
Support URL Web API Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

oracle/graaljs#907 · 3 comments · Opened Apr 11, 2025
targetTypeMapping not working when executing a Java lambda Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

oracle/graaljs#899 · 2 comments · Opened Mar 10, 2025
ARM macs are constantly complaining about graalnodejs binaries Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

oracle/graaljs#892 · Opened Feb 25, 2025
How to actually install/run GraalJS? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#888 · 1 comment · 1 reaction · Opened Feb 8, 2025
Integers gets resolved to double after passing in double once Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

oracle/graaljs#887 · 1 comment · 3 reactions · Opened Jan 31, 2025
How to install nodejs runtime on Oracle GraalVM for JDK 21? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#883 · 2 comments · Opened Jan 15, 2025
Performance Gap Between GraalJS and V8 on Octane Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#879 · 2 reactions · Opened Dec 26, 2024
Looking for example(java/j2ee web application) how to use java script engine(by name graal.js) with OpenJDK17 or higher Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

oracle/graaljs#870 · Opened Nov 26, 2024
Cannot load module: 'util' even though it is polyfilled Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#866 · 3 comments · Opened Oct 30, 2024
Crashed on normal jdk when native libraries can't load Open

question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#863 · 4 comments · Opened Oct 12, 2024
Run Angular CLI with Graal NodeJs? Open

oracle/graaljs#860 · 1 comment · 1 assignee · Opened Sep 28, 2024
[GR-57592] Implement Decorator Metadata Proposal Open

proposal

oracle/graaljs#855 · 1 assignee · Opened Sep 26, 2024
Q: ANNEXB disable story Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#847 · 4 comments · Opened Sep 20, 2024
eval of a Source object takes twice the time in a native image Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

oracle/graaljs#843 · Opened Sep 4, 2024
How can graaljs not merge Array? Open

question

Difficulty 4/5 3-5 days Newbie friendliness 25/100

oracle/graaljs#838 · 1 comment · Opened Aug 28, 2024
How to use Graal JS in an Eclipse Content in context with Eclipse EASE in Java 17 environment Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

oracle/graaljs#837 · 1 comment · Opened Aug 27, 2024
Graal JS Script Engine is very slow compared to Rhino Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#836 · 5 comments · Opened Jul 28, 2024
Wildcards in classpath do not work anymore Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#834 · 2 comments · Opened Jul 10, 2024
Add instructions for enabling usage of Java Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

oracle/graaljs#831 · 1 comment · Opened Jun 23, 2024
'GraalJSEngineFactory could not be instantiated' on JDK22 Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

oracle/graaljs#825 · 1 comment · Opened Jun 13, 2024
Provide the WinterCG minimum common API Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

oracle/graaljs#823 · 1 comment · 1 reaction · Opened May 28, 2024
nodejs c-addon seems to leak Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#819 · 1 comment · Opened Apr 30, 2024
GraalJS should support Ahead-of-Time(AOT) compilation to Native binary like GraalPy. Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

oracle/graaljs#818 · 1 comment · 3 reactions · Opened Apr 26, 2024
Can not resolve NodeJS Promise Concurrently from Java Side Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

oracle/graaljs#817 · 6 comments · 1 reaction · Opened Apr 19, 2024
Support for Node.js `http` and `fs` modules in GraalJS Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

oracle/graaljs#816 · 1 comment · 1 reaction · Opened Apr 15, 2024
Expose wrapPromise and Thenable in the GraalJS public API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#811 · 2 reactions · Opened Mar 21, 2024
Get (heap) memory usage information Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#802 · Opened Feb 23, 2024
Adding a classpath while no direct access to Node Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

oracle/graaljs#799 · 2 comments · Opened Feb 19, 2024
Binding is slow Open

javascript performance

oracle/graaljs#788 · 5 comments · 1 assignee · Opened Jan 5, 2024
TypeScript support Open

enhancement

oracle/graaljs#784 · 2 comments · 10 reactions · 1 assignee · Opened Dec 1, 2023

oracle/graaljs

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