After running continuously for a couple of weeks, PerlOnJava compatibility testing now covers 10,054 randomly selected CPAN modules.

Current results:

3,062 modules pass all tests (30.5%)
Dependencies are tested recursively via jcpan -t
Results are recorded automatically for every module encountered

Compatibility report:
https://github.com/fglock/PerlOnJava/blob/master/dev/cpan-reports/cpan-compatibility.md

#Perl #PerlOnJava #Java

@leobm following up - got a simple HTTP server running with Netty + PerlOnJava:

https://github.com/fglock/PerlOnJava/tree/master/examples/http_server

#Perl #PerlOnJava #Java

🫎 Moose is now bundled with PerlOnJava.

Yes, *that* Moose — the OOP framework that made Perl feel modern. Roles, type constraints, method modifiers, all of it. On the JVM. No install needed.

https://github.com/fglock/PerlOnJava/blob/master/examples/moose.pl

#Perl #Java #Moose #PerlOnJava

I’ve written a short blog post with more details on the new CPAN client support in PerlOnJava, including how jcpan works and how XS compatibility is handled.

If you’re interested in the implementation and design choices, take a look:
https://blogs.perl.org/users/flavio_s_glock/2026/03/perlonjava-gets-a-cpan-client.html

#perl #java #perlonjava

PerlOnJava now supports installing CPAN modules.

Java-based tooling equivalents are bundled:
jperl, jcpan, jperldoc, and jprove - providing a familiar workflow.

Pure-Perl CPAN modules install out of the box.
XS compatibility is enabled via a Java class (e.g., DateTime.java).

https://github.com/fglock/PerlOnJava

#perl #java #perlonjava

The PerlOnJava talk from FOSDEM 2026 is now online.

PerlOnJava: A Perl distribution for the JVM
📅 Feb 1, 2026 - Flavio Soibelmann Glock

Video:
https://video.fosdem.org/2026/h2215/NGYLQZ-perlonjava_a_perl_distribution_for_the_jvm.av1.webm

#Perl #JVM #FOSDEM #PerlOnJava

296k lines of Perl code running on the JVM.

PerlOnJava milestone: Image::ExifTool 13.44 (Phil Harvey) runs unmodified.

#Perl #JVM #Compilers #PerlOnJava

**PerlOnJava v3.0.0: Faster, Lighter, Smarter! 🚀**

- On-demand code generation for faster loading
- Lower memory usage with optimized scalars
- Faster execution via JVM `MethodHandle`
- New modules: `Time::HiRes`, `Benchmark`
- `/ee` regex modifier for advanced text processing
- `Dockerfile` + `--upgrade` for smooth setup

🔗 https://github.com/fglock/PerlOnJava

#PerlOnJava #Perl #Java #OpenSource

PerlOnJava v2.3.0: Modern Perl meets the JVM! 🚀

- New modules: YAML, Text::Balanced, Unicode::Normalize.
- Subroutine signatures + experimental `class` keyword.
- Regex upgrades: named captures, Unicode properties, atomic groups.
- jperl/jperl.bat wrappers for easy CLI execution.
- Chained operators, stacked file tests, here docs.
- Overloading (`""`, `0+`, bool).

Bringing Perl’s flexibility to Java ecosystems!

https://github.com/fglock/PerlOnJava

#PerlOnJava #Perl #Java #opensource