[BUG] When `npx projen build`: Task "build » compile » generate" failed when executing "./gradlew build"

[teddyaryono]

Describe the bug

Went through the getting started guide, and ran into this issue.

$ npx projen build

👾 build | pnpm exec nx run-many --target=build --output-style=stream --nx-bail

 >  NX   Running target build for 7 projects:

    - myapi-typescript-react-query-hooks
    - myapi-typescript-infra
    - myapi-documentation-html-redoc
    - myapi-typescript-runtime
    - myapi-typescript-handlers
    - myapi-model
    - myapi

 ———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

> nx run myapi-model:build


> nx run myapi:build  [local cache]

myapi-model: 👾 build » compile » generate | npx --yes -p @aws/pdk@$AWS_PDK_VERSION type-safe-api.copy-gradle-wrapper
myapi-model: Copying Gradle Wrapper...
myapi-model: Copied Gradle Wrapper
myapi-model: 👾 build » compile » generate | ./gradlew build
myapi-model: FAILURE: Build failed with an exception.
myapi-model: * What went wrong:
myapi-model: Could not open settings generic class cache for settings file '/Users/taryono/Code/projects/prototyping-sandbox/my-project/packages/api/model/settings.gradle' (/Users/taryono/.gradle/caches/8.3/scripts/8ye291m6tu88vf0jb5v7qjixz).
myapi-model: > BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 66
myapi-model: * Try:
myapi-model: > Run with --stacktrace option to get the stack trace.
myapi-model: > Run with --info or --debug option to get more log output.
myapi-model: > Run with --scan to get full insights.
myapi-model: > Get more help at https://help.gradle.org.
myapi-model: BUILD FAILED in 308ms
myapi-model: 👾 Task "build » compile » generate" failed when executing "./gradlew build" (cwd: /Users/taryono/Code/projects/prototyping-sandbox/my-project/packages/api/model)
myapi-model: Warning: run-commands command "pnpm dlx projen build" exited with non-zero status code

 ———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

 >  NX   Running target build for 7 projects failed

   Tasks not run because their dependencies failed or --nx-bail=true:
   
   - myapi-typescript-react-query-hooks:build
   - myapi-typescript-infra:build
   - myapi-documentation-html-redoc:build
   - myapi-typescript-runtime:build
   - myapi-typescript-handlers:build
   
   Failed tasks:
   
   - myapi-model:build

👾 Task "build" failed when executing "pnpm exec nx run-many --target=build --output-style=stream --nx-bail" (cwd: /Users/taryono/Code/projects/prototyping-sandbox/my-project)

Expected Behavior

Project built successfully.

Current Behavior

👾 Task "build » compile » generate" failed when executing "./gradlew build" (cwd: /Users/taryono/Code/projects/prototyping-sandbox/my-project/packages/api/model)

Reproduction Steps

1. npx projen new --from @aws/pdk --package-manager=pnpm monorepo-ts
2. npx projen
3. npx projen build
4. Add a Type-Safe API to .projenrc.ts
5. npx projen
6. npx projen build
7. Described error happened

Possible Solution

No response

Additional Information/Context

Java and maven version:

$ java --version
openjdk 22.0.1 2024-04-16
OpenJDK Runtime Environment Corretto-22.0.1.8.1 (build 22.0.1+8-FR)
OpenJDK 64-Bit Server VM Corretto-22.0.1.8.1 (build 22.0.1+8-FR, mixed mode, sharing)

$ mvn --version
Apache Maven 3.9.6 (bc0240f3c744dd6b6ec2920b3cd08dcc295161ae)
Maven home: /Users/taryono/apache-maven-3.9.6
Java version: 22.0.1, vendor: Amazon.com Inc., runtime: /Library/Java/JavaVirtualMachines/amazon-corretto-22.jdk/Contents/Home
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "14.4.1", arch: "aarch64", family: "mac"

PDK version used

0.23.37

What languages are you seeing this issue on?

Typescript

Environment details (OS name and version, etc.)

Apple M1 Pro, MacOS Sonoma 14.4.1

[Funkmyster]

I'm getting the same error when building the Python version

Here's my Java info from inside the generated project

cd packages/api/model
./gradlew --version

------------------------------------------------------------
Gradle 8.3
------------------------------------------------------------

Build time:   2023-08-17 07:06:47 UTC
Revision:     8afbf24b469158b714b36e84c6f4d4976c86fcd5

Kotlin:       1.9.0
Groovy:       3.0.17
Ant:          Apache Ant(TM) version 1.10.13 compiled on January 4 2023
JVM:          22.0.1 (Amazon.com Inc. 22.0.1+8-FR)
OS:           Mac OS X 14.4.1 x86_64

[Funkmyster]

Hey @teddyaryono! I got a fix

Apparently Gradle 8.3 is not compatalble with our Java Corretto 22 https://docs.gradle.org/current/userguide/compatibility.html#compatibility

I just set my JAVA_HOME to a openjdk20

export JAVA_HOME=/usr/local/opt/openjdk@20/
npx projen
npx projen build

[teddyaryono]

Thanks @Funkmyster - I got mine fixed by downgrading to Corretto 17.

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