[BUG][C#]Additional logging to debug OOM exception

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
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Description

openapi-generator version

2.7.0

OpenAPI declaration file content or url

https://gist.github.com/PeterVaccaITR/04c4d1875096acdca665b49edfa72c76.js

Generation Details

"swagger:gen:lp-api:mac": "set JAVA_OPTS=\"%JAVA_OPTS% -Dlog.level=debug -Dio.swagger.parser.util.RemoteUrl.trustAll=true -Dio.swagger.v3.parser.util.RemoteUrl.trustAll=true\" && npx @openapitools/openapi-generator-cli generate -i https://localhost:7176/v3/apis/il-inview/swagger/swagger.json --additional-properties=withInterfaces=true,modelPropertyNaming=original,withSeparateModelsAndApi=true,legacyDiscriminatorBehavior=false --skip-validate-spec --api-package lp-offering-api --model-package models -g typescript-axios -o ./src/swagger/lp-offering-api",

Steps to reproduce

Running the above results in a OOM heap space exception. I don't see any additional logging with the -Dlog.level=debug

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at java.base/java.util.Arrays.copyOfRange(Arrays.java:3822) at java.base/java.lang.String.<init>(String.java:4531) at java.base/java.lang.String.<init>(String.java:1487) at java.base/java.lang.StringBuilder.toString(StringBuilder.java:453) at com.fasterxml.jackson.core.util.TextBuffer.contentsAsString(TextBuffer.java:465) at com.fasterxml.jackson.core.io.SegmentedStringWriter.getAndClear(SegmentedStringWriter.java:85) at com.fasterxml.jackson.databind.ObjectWriter.writeValueAsString(ObjectWriter.java:1146) at io.swagger.v3.core.util.Json.pretty(Json.java:24) at org.openapitools.codegen.DefaultCodegen.fromModel(DefaultCodegen.java:2982) at org.openapitools.codegen.DefaultCodegen.handleMethodResponse(DefaultCodegen.java:4271) at org.openapitools.codegen.DefaultCodegen.fromOperation(DefaultCodegen.java:4435) at org.openapitools.codegen.DefaultGenerator.processOperation(DefaultGenerator.java:1189) at org.openapitools.codegen.DefaultGenerator.processPaths(DefaultGenerator.java:1115) at org.openapitools.codegen.DefaultGenerator.generateApis(DefaultGenerator.java:586) at org.openapitools.codegen.DefaultGenerator.generate(DefaultGenerator.java:949) at org.openapitools.codegen.cmd.Generate.execute(Generate.java:487) at org.openapitools.codegen.cmd.OpenApiGeneratorCommand.run(OpenApiGeneratorCommand.java:32) at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:66)

Related issues/PRs

Suggest a fix

Start by running the provided generator command with the linked OpenAPI declaration and reading the stack trace through DefaultCodegen.fromModel, DefaultCodegen.handleMethodResponse, and DefaultGenerator.processOperation. Check how the requested -Dlog.level=debug setting is handled during this OOM path. Done means the reproduction provides useful additional debug logging instead of only the heap-space exception.