Helidon Níma Example - Loom based webserver

Last update: Dec 16, 2022

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Overview

helidon-nima-example

Helidon Níma Example - Loom based webserver This example is built on top of an ALPHA-1 release of Helidon 4. Alpha releases serve as prototypes or technology demonstration.

The code is not yet production quality in all of its aspects, and problems may be expected.

Nevertheless, if you encounter an issue with Helidon, please kindly report it at https://github.com/oracle/helidon/issues/new

Prerequisites

Java 19 with preview feature "Loom" (now available as RC at https://jdk.java.net/19/) Maven

How to

Build the project from the repository root
```
 mvn clean package
```

Run the application

 java --enable-preview -jar nima/target/example-nima-blocking.jar

Call the endpoints (default count is 3)

 curl -i http://localhost:8080/one
 curl -i http://localhost:8080/sequence
 curl -i http://localhost:8080/sequence?count=4
 curl -i http://localhost:8080/parallel
 curl -i http://localhost:8080/parallel?count=2

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Comments

Tests Never Complete

eric.kolotyluk@Y2RCV7009N loom-laboratory % ./gradlew clean helidon-nima:test

> Task :helidon-nima:compileJava
warning: using incubating module(s): jdk.incubator.concurrent
Note: /Users/eric.kolotyluk/git/autonomous-iam/poc/loom-laboratory/helidon-nima/src/main/java/nima/NimaMain.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: /Users/eric.kolotyluk/git/autonomous-iam/poc/loom-laboratory/helidon-nima/src/main/java/nima/BlockingService.java uses preview features of Java SE 19.
Note: Recompile with -Xlint:preview for details.
1 warning
<===========--> 90% EXECUTING [5m 3s]
> :helidon-nima:test > 0 tests completed
> :helidon-nima:test > Executing test nima.BlockingServiceIT
^C%                                                                             
eric.kolotyluk@Y2RCV7009N loom-laboratory %

I converted your project to Gradle since we are a Gradle site...

The tests seem to run fine under Maven, so I was wondering if you might have any insight into why they don't run under Gradle.

opened by kolotyluk 0

Improve README.md

Document JAVA_HOME environment variable

mvn clean package fails out of the box unless JAVA_HOME is set correctly.

For improved developer experience (DX) document this important prerequisite.

opened by kolotyluk 0

Owner

Tomas Langer

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