Remove bean validation for uuid in microprofile library

Description

The following applies to java / libraies / microprofile library:
https://github.com/OpenAPITools/openapi-generator/tree/master/modules/openapi-generator/src/main/resources/Java/libraries/microprofile

We are using UUID's for some fields in the responses from our controller endpoints.
By default bean validations are on so generator is creating validation annotations for respective fields.
The code generator maps UUID to java.util.UUID and adds @Pattern(regexp="[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}") for UUID field.
However, this gives us problem with validating, as there is no validator for Pattern validating type 'java.util.UUID'

We get the following error message:

"details": "Error id 28323f9c-2682-414a-b37e-39ab16142937-1, jakarta.validation.UnexpectedTypeException: HV000030: No validator could be found for constraint 'jakarta.validation.constraints.Pattern' validating type 'java.util.UUID'. Check configuration for '........'"

openapi-generator version

id 'org.openapi.generator' version '7.8.0'

OpenAPI declaration file content or url

    UUID:
      format: uuid
      pattern: "[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}"
      type: string

Related issues/PRs

I have found a similar issue that has been fixed in the following PR - however this applies to JavaSpring.
https://github.com/OpenAPITools/openapi-generator/pull/18900/files

Suggest a fix/enhancement

I have fixed it by updating the template "beanValidationCore.mustache" to not generate Pattern annotation when type is UUID.

I have added {{^isUuid}} and {{/isUuid}} to beginning and end of beanValidationCore.mustache

{{^isUuid}}{{#pattern}} @Pattern(regexp="{{{.}}}"){{/pattern}}{{!
minLength && maxLength set
}}{{#minLength}}{{#maxLength}} @Size(min={{minLength}},max={{maxLength}}){{/maxLength}}{{/minLength}}{{!
minLength set, maxLength not
}}{{#minLength}}{{^maxLength}} @Size(min={{minLength}}){{/maxLength}}{{/minLength}}{{!
minLength not set, maxLength set
}}{{^minLength}}{{#maxLength}} @Size(max={{.}}){{/maxLength}}{{/minLength}}{{!
@Size: minItems && maxItems set
}}{{#minItems}}{{#maxItems}} @Size(min={{minItems}},max={{maxItems}}){{/maxItems}}{{/minItems}}{{!
@Size: minItems set, maxItems not
}}{{#minItems}}{{^maxItems}} @Size(min={{minItems}}){{/maxItems}}{{/minItems}}{{!
@Size: minItems not set && maxItems set
}}{{^minItems}}{{#maxItems}} @Size(max={{.}}){{/maxItems}}{{/minItems}}{{!
check for integer or long / all others=decimal type with @Decimal*
isInteger set
}}{{#isInteger}}{{#minimum}} @Min({{.}}){{/minimum}}{{#maximum}} @Max({{.}}){{/maximum}}{{/isInteger}}{{!
isLong set
}}{{#isLong}}{{#minimum}} @Min({{.}}L){{/minimum}}{{#maximum}} @Max({{.}}L){{/maximum}}{{/isLong}}{{!
Not Integer, not Long => we have a decimal value!
}}{{^isInteger}}{{^isLong}}{{#minimum}} @DecimalMin("{{.}}"){{/minimum}}{{#maximum}} @DecimalMax("{{.}}"){{/maximum}}{{/isLong}}{{/isInteger}}{{/isUuid}}

I would like to open a PR for this little improvement.

Start with modules/openapi-generator/src/main/resources/Java/libraries/microprofile/beanValidationCore.mustache and compare the UUID handling with the JavaSpring change in PR 18900. Verify the generated MicroProfile models for the provided UUID schema no longer add @Pattern to java.util.UUID fields while other bean validations remain present.