[BUG] [JAVA] okhttp-gson joda client codegen ambiguous references for LocalDate and DateTimeFormatter

[UnstoppableN]

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

I'm trying to generate java client code with the default library template "okhttp-gson" and date library "joda".
The generated code has compile issues:

ApiClient.java:[337,39] error: reference to DateTimeFormatter is ambiguous both class org.joda.time.format.DateTimeFormatter in org.joda.time.format and class java.time.format.DateTimeFormatter in java.time.format match
and
JSON.java:[289,65] error: reference to LocalDate is ambiguous both class org.joda.time.LocalDate in org.joda.time and class java.time.LocalDate in java.time match

openapi-generator version

7.5.0

Suggest a fix

I believe the issue was introduced with commit: 8455c1c
It would be fixed if java.time.format.DateTimeFormatter and java.time.LocalDate are not included in the ApiClient.mustache and the JSON.mustache

[wing328]

It would be fixed if java.time.format.DateTimeFormatter and java.time.LocalDate are not included in the ApiClient.mustache and the JSON.mustache

do you mind filing a PR with the suggested fix when you've time?