Canonicalization exception when using with the "plugin" profile in a Grails plugin

[odinsride]

Task List

• [x] Steps to reproduce provided
• [x] Stacktrace (if present) provided
• [x] Example that reproduces the problem uploaded to Github
• [x] Full description of the issue provided (see below)

Steps to Reproduce

1. Create new Grails plugin using the "plugin" profile: $ grails create-plugin com.odinsride.grails-spring-security-core-plugin --profile=plugin
2. Add spring-security-core >= v4.0.0 to build.gradle: compile "org.grails.plugins:spring-security-core:4.0.3"
3. Compile the plugin: $ grails compile

Expected Behaviour

The Grails plugin compiles successfully.

Actual Behaviour

Compilation fails on the compileGroovy task with the following message:

> Task :compileGroovy FAILED
2 actionable tasks: 1 executed, 1 up-to-date
<-------------> 0% WAITING
> IDLE

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileGroovy'.
> BUG! exception in phase 'canonicalization' in source unit 'C:\dev\grails\upgrade-4.0\grails-spring-security-core-plugin\grails-app\init\com\odinsride\Application.groovy' org.springframework.web.servlet.config.annotation.EnableWebMvc

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org
| Error Gradle build terminated with error: org.springframework.web.servlet.config.annotation.EnableWebMvc (Use --stacktrace to see the full trace)

I will also note that performing the exact same steps but omitting the --profile=plugin flag (which uses the web-plugin profile) does not exhibit this error message.

Further, I found that in a plugin generated with the plugin profile, if the following dependency is defined in build.gradle, the plugin will compile without the above error:

compile "org.grails:grails-web-boot"

Is this a matter of missing documentation or an actual problem?

Environment Information

• Operating System: Windows 10
• GORM Version: 7.0.8.RELEASE
• Grails Version (if using Grails): 4.0.6
• JDK Version: 1.8 (Adopt OpenJDK)

Example Application

• https://github.com/odinsride/grails-spring-security-core-plugin