Spring Boot app fails if started with builpacks tiny run image

[vananiev]

run-jammy-tiny leads to error

2025-06-07T23:33:22.898Z  INFO 1 --- [  XNIO-1 task-2] r.i.p.i.InvestbookBrokerReportFactory    : ????????? ????? '?????? ????.xlsx' ? ??????? Investbook
java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters

for Spring Boot application witch is assembled with spring-boot-maven-plugin. App in the run-jammy-tiny container fails in creating a path with non-ASCII chars. spring-boot-maven-plugin configured with builder

<configuration>
  <image>
    <builder>paketobuildpacks/builder-jammy-java-tiny:0.0.35</builder>
    ...

When I replace builder

<builder>paketobuildpacks/builder-jammy-full:0.3.493</builder>

or

<builder>paketobuildpacks/builder-jammy-base:0.4.418</builder>

app works correctly.

Relates to paketo-buildpacks/jammy-tiny-stack#202
Relates to #42508

[wilkinsona]

Thanks for brining this to our attention but creating the same issue in multiple places is unlikely to be productive. Closing in favor of paketo-buildpacks/jammy-tiny-stack#202 as I believe this will require a change on the Buildpacks side. We can re-open if it transpires that that's not the case.

[vananiev]

Thanks for the quick answer.

I created paketo-buildpacks/jammy-tiny-stack#202 to make a correction for run-jammy-tiny. I created this issue to temporarily replace run-jammy-tiny with run-jammy-base. This will help users to use Spring apps in docker created using spring-boot-maven-plugin without switching to an alternative packaging system. Bug breaks all apps using non-ascii chars. I think this is important.

Can you replace run-jammy-tiny with run-jammy-base?

[wilkinsona]

Given that not everyone will be affected and, for those who are, it's straightforward to configure a different builder, I see no need to do that. Let's given the Buildpack maintainers time to fix the problem and avoid unnecessary churn where we change Boot's default and then have to change it back again once a fix is available upstream.