UriComponentsBuilder does not treat a URN as opaque if it contains a slash

[kula003]

There is change in UriTemplate between spring-web 6.2.x and 6.1.x.

Below urn template we are looking at urn:text:service-{region}:{prefix}/{id}

public void Test(){
    final UriTemplate URN_TEMPLATE = new UriTemplate("urn:text:service-{region}:{prefix}/{id}");
    System.out.println(URN_TEMPLATE.expand("US","prefix1", "Id-2").toString());
  }

Output in 6.1.x version

urn:text:service-US:prefix1/Id-2

Output in 6.2.x version

urn:/text:service-US:prefix1/Id-2

Additional slash is added post urn:

[kula003]

Hi team ,
Any update regarding this issue ?

[rstoyanchev]

It looks like the RfcUriParser introduced in #33639 isn't fully aligned with how an opaque URI is determined.