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[BUG][JAVA] Exception in thread "main" java.lang.OutOfMemoryError: Java heap space

See original GitHub issue

Bug Report Checklist

Have you provided a full/minimal spec to reproduce the issue?
Have you validated the input using an OpenAPI validator (example)?
What’s the version of OpenAPI Generator used?
Have you search for related issues/PRs?
What’s the actual output vs expected output?

Description

Trying to generate a quite large ~1mb Swagger-file. It had some validation issues, and I tried to fix them. Don’t know if those are relevant, since no matter if it’s fixed or not, no dice. Still «Java heap space» issue.

Relevant issue: bjerkio/tripletexjs#14 Reproduce the issue with this repository: https://github.com/bjerkio/tripletexjs/tree/reproduce

openapi-generator version

4.3.1

OpenAPI declaration file content or url

https://raw.githubusercontent.com/bjerkio/tripletexjs/reproduce/swagger-fixed.json

Command line used for generation

make generate or

java -Xmx4G -jar openapi-generator-cli.jar \
	generate \
	-i ./swagger-fixed.json \
	-g typescript-fetch \
	-o ./out -v

Steps to reproduce

> git clone git@github.com:bjerkio/tripletexjs.git
> git checkout reproduce
> make generate

Related issues/PRs

OpenAPITools/openapi-generator#2503
OpenAPITools/openapi-generator#4398
OpenAPITools/openapi-generator#5201.

Suggest a fix

I’m lost.

@bbdouglas @sreeshas @jfiala @lukoyanov @cbornet @jeff9finger @karismann @Zomzog @lwlee2608 @bkabrda

Issue Analytics

State:
Created 3 years ago
Comments:10 (2 by maintainers)

Top GitHub Comments

1reaction

agilobcommented, Dec 23, 2020

I will be slowly looking into it step after step, trying to pick low hanging fruits first, one PR is ready #8181 reduces number of open files, closes resources much sooner. Should help, but I didn’t do any professional profiling for it.

1reaction

cobrazcommented, Dec 22, 2020

@agilob @davija reopened. Hope we’ll get this fixed 😃

re @bbdouglas @sreeshas @jfiala @lukoyanov @cbornet @jeff9finger @karismann @Zomzog @lwlee2608 @bkabrda