This is a reproduction project demonstrating an issue when trying to read input from console (eg with a buffered reader) and the Quarkus dev mode.
- Build the project (
mvn package
). - Verify that it works properly with the uber-jar, you have two commands:
java -jar target/quarkus-textio-bug-1.0.0-SNAPSHOT-runner.jar textio
andjava -jar target/quarkus-textio-bug-1.0.0-SNAPSHOT-runner.jar reader
reading an input from Console and displaying it. One command uses a basicInputStreamReader
, the other TextIO (which is how I noticed the problem initially...). - You can also verify it works with a native executable.
- Run
mvn quarkus:dev -Dquarkus.args="textio"
and observe how part of the inputs are captured by the Quarkus dev mode.
This project uses Quarkus, the Supersonic Subatomic Java Framework.
If you want to learn more about Quarkus, please visit its website: https://quarkus.io/ .
You can run your application in dev mode that enables live coding using:
./mvnw compile quarkus:dev
NOTE: Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.
The application can be packaged using:
./mvnw package
It produces the quarkus-run.jar
file in the target/quarkus-app/
directory.
Be aware that it’s not an über-jar as the dependencies are copied into the target/quarkus-app/lib/
directory.
The application is now runnable using java -jar target/quarkus-app/quarkus-run.jar
.
If you want to build an über-jar, execute the following command:
./mvnw package -Dquarkus.package.type=uber-jar
The application, packaged as an über-jar, is now runnable using java -jar target/*-runner.jar
.
You can create a native executable using:
./mvnw package -Pnative
Or, if you don't have GraalVM installed, you can run the native executable build in a container using:
./mvnw package -Pnative -Dquarkus.native.container-build=true
You can then execute your native executable with: ./target/quarkus-termio-bug-1.0.0-SNAPSHOT-runner
If you want to learn more about building native executables, please consult https://quarkus.io/guides/maven-tooling.
- Picocli (guide): Develop command line applications with Picocli
Hello and goodbye are civilization fundamentals. Let's not forget it with this example picocli application by changing the command
and parameters
.
Also for picocli applications the dev mode is supported. When running dev mode, the picocli application is executed and on press of the Enter key, is restarted.
As picocli applications will often require arguments to be passed on the commandline, this is also possible in dev mode via:
./mvnw compile quarkus:dev -Dquarkus.args='Quarky'