Running JRuby 9.4 and Puma with SSL

[treviateo]

Hi All,

I am trying to run JRuby 9.4.2.0 with ruby 3.1 and puma 5.6.5 with SSL.

System Configuration:
JRuby: 9.4.2.0
Puma: 5.6.5
Open JDK: 1.8.0_322

I downloaded the sample keystore from https://github.com/puma/puma/blob/429d17bca11f8d22dcc1434c9f6ac826a06fa836/examples/puma/keystore.jks, password blahblah. And converted it to PKCS12 format.

The keystore looks ok as following:

When running JRuby with Puma and SSL binding as following:
C:\jruby-9.4.2.0\bin\jruby.exe C:[path_to_puma]\bin\puma -b "ssl://127.0.0.1:9292?keystore=C:.ssl\keystore&keystore-pass=blahblah&verify_mode=none" -q -p 9191

the server starts up ok as following:

However when trying to curl (curl https://localhost:9292 -v), it failed as following:

And on the server console, this error keep popping up everytime the curl command is entered:
Error reached top of thread-pool: java.nio.ByteBuffer.clear()Ljava/nio/ByteBuffer; (Java::JavaLang::NoSuchMethodError)

Does anyone have a hunch about this and could help with this issue? Thank you.

[ahorek]

it's a known incompatibility with binaries compiled on a newer Java, see #5499

but this has to be fixed in the Puma repo https://github.com/puma/puma/blob/master/ext/puma_http11/org/jruby/puma/MiniSSL.java#L76

for now, the easiest workaround is upgrading the Java version to 9+ if you can...

puma/puma#3108

[treviateo]

Hi @ahorek, thank you for your response.

I have tried with open JDK Amazon Corretto 11.0.18 as following:

But still encountered the same issue.

For JRuby 9.4.2, I installed from the windows executable file (https://s3.amazonaws.com/jruby.org/downloads/9.4.2.0/jruby_windows_x64_9_4_2_0.exe). Just wonder whether this executable file is compiled with which version of Java? Or does it matter?

Thank you.

[ahorek]

does jruby -v also print java 11?

either way, it's a bug and the fix should be trivial. I'm not sure if 5.6.x is still supported, it could take some time for a new release...

[treviateo]

Hi @ahorek,

It seems jruby -v print out java 1.8 as following:

jruby 9.4.2.0 (3.1.0) 2023-03-08 90d2913 OpenJDK 64-Bit Server VM 25.322-b06 on 1.8.0_322-b06 +jit [x86_64-mswin32]

Tried with Puma 6.1.1 and encountered the same issue. May i know which version of Puma is good to try ?

Thank you.

[ahorek]

could you test puma/puma#3109 ?

gem "puma", git: "https://github.com/ahorek/puma.git", branch: "java8"

[treviateo]

Hi @ahorek,

Try to run bundle install after adding gem 'puma', git: 'https://github.com/ahorek/puma.git', branch: 'java8' and encountered the attached error:
puma_build_error.txt

Did i miss anything? Thank you.

[ahorek]

ahh, Puma doesn't support building the JRuby version directly from the git repo. Never mind, here's a manual build:
https://github.com/ahorek/puma/blob/build/puma-6.1.1-java.gem

gem install puma-6.1.1-java.gem

[treviateo]

Hi @ahorek,

Adding this line on Gemfile:
gem 'puma', source: 'https://github.com/ahorek/puma/blob/build/puma-6.1.1-java.gem'

and bundle install run ok with Gemfile.lock looks as this:
GEM
remote: https://github.com/ahorek/puma/blob/build/puma-6.1.1-java.gem/
specs:
puma (6.1.1-java)
nio4r (~> 2.0)

Puma output on startup:


However still encounter the same issue on curl https://127.0.0.1:9292 -v
Error reached top of thread-pool: java.nio.ByteBuffer.clear()Ljava/nio/ByteBuffer; (Java::JavaLang::NoSuchMethodError)

Thank you.

[ahorek]

ok, but it's a different place, maybe there's another gem with the same issue? (not clear where it comes from without a proper backtrace)

I suspect it could be nio4j, basically the same story:
https://github.com/socketry/nio4r/blob/main/ext/nio4r/org/nio4r/ByteBuffer.java#L59
https://github.com/socketry/nio4r/blob/main/rakelib/extension.rake#L7

[treviateo]

Hi @ahorek,

Are you a contributor for nio4r as well ? If you do, may you help to fix it there as well ?

Thank you, really appreciate your help.

[ahorek]

@treviateo both puma & nio4j have been released with compatibility fixes. Could you test it again if you still getting the same error?

[treviateo]

Hi @ahorek,

Thank you for your reply. Just updated to puma 6.2.1, but still encounter the issue when trying to curl https://127.0.0.1:9292 -v or access the url https://localhost:9292 from browser:

Gemfile.lock snippet:

Curl error:

Please let me know if you notice something that I probably miss. Thank you.

[ahorek]

we need a more verbose backtrace. What gem is using the bytebuffer and where. It could also be some piece of code in JRuby itself. I'll see if I can simulate the issue tomorrow.

[ahorek]

fixed by #7742