gradle assemble produces jar that causes stacktrace when UI accessed

[sbortman]

Task List

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

Steps to Reproduce

1. grails create-app foobar
2. cd foobar
3. remove war plugin from build.gradle
4. gradle assemble
5. java -jar build/libs/foobar-0.1.jar
6. open http://localhost:8080 in browser

Expected Behaviour

See standard Grails page for any new app

Actual Behaviour

HTTP Status 500 - Internal Error page in browser
Stacktrace in console (attached)

Environment Information

• MacOSX Mojave
• 4.0.0.M1
• JDK 8u201 and 11.0.2
  stacktrace.txt

Example Application

• TODO: link to github repository with example that reproduces the issue

[graemerocher]

Seems to be a bug in the GSP gradle plugin because the compiled GSPs are not in the JAR