2.6.0 : Properties are not read anymore (regression)

• What version of the library are you using? 2.6.0
• Bug report.
  • if you have a repo that demonstrates the issue for bonus points! https://github.com/cbornet/springfox-demos

Values from property file are not read when including @EnableSwagger2 I’ve added a /test endpoint in this commit to show the issue

curl "http://localhost:8081/springfox/test"
8080

Response should be 8081.

Downgrading to 2.5.0 solves the issue.

Probably linked to https://github.com/springfox/springfox/commit/e545b61e46513c131a009bf82ab2879ca4cc58d0

[dilipkrish]

@jayanderson Within the next week

[Verdoso]

Ok, Good news. I traced down our issue and it seems that the current behaviour is fine, whereas up to version 2.5.0 Swagger was masking some errors we had in our code. We had some properties defined as such:

@Value("${defaults.whatever}")
private String defaultWhatever;

This placeholder has no default value, so it means the property is mandatory. Up to 2.5.0, I’m presuming Swagger was doing something and providing a default value for those properties. Using 2.6.X, Swagger does not provide a default value and SpringBoot complains, rightly so, that it cannot resolve ${defaults.whatever}.

So, in this case, it was a misconfiguration in our side that had been masked. Once we specified that the properties are optional with the colon at the end, everything worked.

@Value("${defaults.whatever:}")

Cheers!