No JDK in vertx/vertx3-exec docker image?

[Lin Gao]

Hi,

   I just tried to run a plan Server.java file using the latest vertx/vertx3-exec docker image, and it failed with exception:

java.lang.RuntimeException: Compilation failed

at io.vertx.core.impl.verticle.CompilingClassLoader.<init>(CompilingClassLoader.java:110)

at io.vertx.core.impl.JavaVerticleFactory.createVerticle(JavaVerticleFactory.java:33)

at io.vertx.core.impl.DeploymentManager.createVerticles(DeploymentManager.java:242)

at io.vertx.core.impl.DeploymentManager.lambda$doDeployVerticle$2(DeploymentManager.java:215)

at io.vertx.core.impl.FutureImpl.setHandler(FutureImpl.java:79)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:182)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:155)

at io.vertx.core.impl.DeploymentManager.deployVerticle(DeploymentManager.java:144)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:677)

at io.vertx.core.impl.launcher.commands.VertxIsolatedDeployer.deploy(VertxIsolatedDeployer.java:42)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at io.vertx.core.impl.launcher.commands.ClasspathHandler.deploy(ClasspathHandler.java:159)

at io.vertx.core.impl.launcher.commands.RunCommand.deploy(RunCommand.java:403)

at io.vertx.core.impl.launcher.commands.RunCommand.run(RunCommand.java:270)

at io.vertx.core.impl.launcher.VertxCommandLauncher.execute(VertxCommandLauncher.java:226)

at io.vertx.core.impl.launcher.VertxCommandLauncher.dispatch(VertxCommandLauncher.java:361)

at io.vertx.core.impl.launcher.VertxCommandLauncher.dispatch(VertxCommandLauncher.java:324)

at io.vertx.core.Launcher.main(Launcher.java:45)

Caused by: java.lang.RuntimeException: Unable to detect java compiler, make sure you're using a JDK not a JRE!

at io.vertx.core.impl.verticle.CompilingClassLoader.<init>(CompilingClassLoader.java:82)

... 20 more

Apparently, there is no JDK installed, should we install one in the official docker image? or it is intended to not have one? Thanks 

FYI:

 [🎩 lgao@lgao vertx-intro]$ docker run -it --rm vertx/vertx3-exec version

3.7.0

Best Regards

Lin Gao

[Thomas SEGISMONT]

Hi,

Indeed the Vert.x images only have a JRE.

I will check with the maintainer but I assume the rationale was to keep image size to a minimum (given very few Vert.x Java users use the command line compared to JS/Ruby users)

Regards,

Thomas

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[Lin Gao]

Thanks Thomas :)

I am gonna give a presentation to the team about Vert.x, and want to give them a plain Java file to run using the Vert.x docker image to experience easily.

But I think indeed the use cases should be quite small, and I think I can survive without JDK installed(build a local docker image with JDK installed is good to me too.).

BTW, where the Dockerfile is maintained? Looks like I did not find it :)

Best Regards

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[Lin Gao]

OK, I found it: https://github.com/vert-x3/vertx-stack/tree/master/stack-docker

[Thomas SEGISMONT]

Exactly!

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