Creating a cli-app with http-client using groovy does not compile with error "Error starting type visitor"

[jmorrispa]

Using mn command line to create a simple cli app with the http-client feature and groovy but fails to compile.

Very easy to reproduce:

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jmorris@jmlinux:~$ mn create-cli-app -f http-client -l groovy demo_mn | Application created at /home/jmorris/demo_mn jmorris@jmlinux:~~$ cd demo_mn jmorris@jmlinux:~/demo_mn$ ./gradlew run

Task :compileGroovy FAILED startup failed: /home/jmorris/demo_mn/src/main/groovy/demo_mn/Demo_mnCommand.groovy: Error starting type visitor [io.micronaut.validation.routes.RouteValidationVisitor@5bf3c557]: io/micronaut/http/server/types/files/StreamedFile

1 error

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':compileGroovy'.

Compilation failed; see the compiler error output for details.

• 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

BUILD FAILED in 3s 1 actionable task: 1 executed_

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Additional to 3.5.2, I tested 3.3.4, 3.2.7, 2.5.13, 2.4.4, 2.3.4, 2.2.3. All shows the same error.

Had to go back to 2.1.4 in order to have a project that compile.

Environment Information

• Operating System: ubuntu 20.04
• Micronaut Version:: mn --version Micronaut Version: 3.5.2
• JDK Version: openjdk 11.0.12 2021-07-20 OpenJDK Runtime Environment 18.9 (build 11.0.12+7) OpenJDK 64-Bit Server VM 18.9 (build 11.0.12+7, mixed mode)

[jmorrispa]

A partner found that commenting the dependency on build.gradle:

compileOnly("io.micronaut:micronaut-http-validation")

Solves the compilation problem.

We are implementing the CLI without any further problem.

I have no idea what does that dependency, will check if we need that at all.

[yawkat]

Thanks for the report. I've looked at the issue and the cause is that in the processor classpath, the micronaut-http-server dependency is missing, even though it is a transitive implementation dependency of http-processor-netty. I think this is a bug in the gradle groovy plugin, so I've made a bug report with gradle: https://github.com/gradle/gradle/issues/21539

[yawkat]

btw as a workaround you can also add this to your dependencies: compileOnly("io.micronaut:micronaut-http-server")

As the name suggests this is compile only, so it does not add the dependency at runtime, but it fixes the issue.