How to pass "-Dfile.encoding=UTF-8" argument

[gantoin]

I tried with different syntaxes referring to the docs: https://just.maciejwalkowiak.com/docs/usage/just-run/

I want to run as similar to this Spring Boot config (using Spring 2.7.5):

just run -Dspring-boot-run-arguments=--file.encoding=UTF-8
just run -Dspring-boot-run-arguments=-Dfile.encoding=UTF-8
just run -Drun.arguments=-Dfile.encoding=UTF-8
just run -Drun.arguments="-Xdebug -Dfile.encoding=UTF-8"
just run -Drun.jvmArguments="-Xdebug -Dfile.encoding=UTF-8"
just run -Drun.jvmArguments="-Dfile.encoding=UTF-8"
just run -Dfile.encoding=UTF-8
just run -Dspring-boot.run.jvmArguments="-Dfile.encoding=UTF-8"
just run -Dspring-boot.run.jvmArguments=""-Dfile.encoding=UTF-8"

Still have an error on boot:

java.lang.IllegalStateException: The Java Virtual Machine has not been configured to use the desired default character encoding (UTF-8).

If someone knows how to run it with just, I'm listening 🍻

[maciejwalkowiak]

There seems to be a bug with passing parameters with "-D". As a workaround, create in your project root a file just.properties with content:

just.run.extra-args=-Dspring-boot.run.jvmArguments="-Dfile.encoding=UTF-8"

Now just run with just run. Let me know please if it helps!

[gantoin]

Thanks for your answer, unfortunately, it doesn’t fix my problem 😿

[maciejwalkowiak]

@gantoin 3 more questions:

• which operating system do you use?
• which build tool - Maven/Gradle - do you use?
• how would you pass this flag if you run your project from the command line with mvn spring-boot:run or gradle bootRun?

[gantoin]

Hi, @maciejwalkowiak 👋 I fixed it by answering your questions :

• I'm using macOS 13.0.1
• I'm using Maven
• I didn't find a good command to run the app correctly with my encoding arg, it was just successful with IntelliJ run configuration

So, I found a way to fix my problem; force the JVM argument in the spring boot plugin in my pom.xml:

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
        <jvmArguments>-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5198 -Dfile.encoding=UTF-8</jvmArguments>
        <wait>500</wait>
        <maxAttempts>240</maxAttempts>
    </configuration>
</plugin>

Now I can run my app correctly with just run or ./mvnw spring-boot:run 🎉 Thanks for your responsiveness, and your work in general on just tool ❤️

[maciejwalkowiak]

Thanks for quick answer! This means that something is off with passing it with just.run.extra-args. I will investigate!

[lucasleon2107]

Hi @maciejwalkowiak, is passing -D arguments for environment variables fixed? Also, how should I send multiple env vars to the run command?