Running "maven-service-factory-api" example with the Launcher class throws java.lang.ClassNotFoundEx

[Konstantinos Liakos]

Trying to run the example https://github.com/vert-x3/vertx-examples/tree/master/maven-service-factory-examples from the IDE (IntelliJ).

I am using the io.vertx.core.Launcher class and passing run io.vertx.examples.MyDeployingVerticle args. The result is this:

java.lang.ClassNotFoundException: io.vertx:maven-service-factory-verticle:3.3.3::my-verticle

at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at io.vertx.core.impl.JavaVerticleFactory.createVerticle(JavaVerticleFactory.java:42)

at io.vertx.core.impl.DeploymentManager.createVerticles(DeploymentManager.java:184)

at io.vertx.core.impl.DeploymentManager.lambda$doDeployVerticle$2(DeploymentManager.java:157)

at io.vertx.core.impl.FutureImpl.checkCallHandler(FutureImpl.java:158)

at io.vertx.core.impl.FutureImpl.setHandler(FutureImpl.java:100)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:130)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:102)

at io.vertx.core.impl.DeploymentManager.deployVerticle(DeploymentManager.java:90)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:574)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:536)

at io.vertx.examples.MyDeployingVerticle.start(MyDeployingVerticle.java:16)

at io.vertx.core.impl.DeploymentManager.lambda$doDeploy$8(DeploymentManager.java:434)

at io.vertx.core.impl.ContextImpl.lambda$wrapTask$2(ContextImpl.java:316)

at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)

at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:418)

at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:440)

at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873)

at java.lang.Thread.run(Thread.java:745)

Nov 12, 2016 8:14:59 PM io.vertx.core.impl.launcher.commands.VertxIsolatedDeployer

SEVERE: Failed in deploying verticle

java.lang.ClassNotFoundException: io.vertx:maven-service-factory-verticle:3.3.3::my-verticle

at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at io.vertx.core.impl.JavaVerticleFactory.createVerticle(JavaVerticleFactory.java:42)

at io.vertx.core.impl.DeploymentManager.createVerticles(DeploymentManager.java:184)

at io.vertx.core.impl.DeploymentManager.lambda$doDeployVerticle$2(DeploymentManager.java:157)

at io.vertx.core.impl.FutureImpl.checkCallHandler(FutureImpl.java:158)

at io.vertx.core.impl.FutureImpl.setHandler(FutureImpl.java:100)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:130)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:102)

at io.vertx.core.impl.DeploymentManager.deployVerticle(DeploymentManager.java:90)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:574)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:536)

at io.vertx.examples.MyDeployingVerticle.start(MyDeployingVerticle.java:16)

at io.vertx.core.impl.DeploymentManager.lambda$doDeploy$8(DeploymentManager.java:434)

at io.vertx.core.impl.ContextImpl.lambda$wrapTask$2(ContextImpl.java:316)

at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)

at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:418)

at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:440)

at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873)

at java.lang.Thread.run(Thread.java:745)

java.lang.ClassNotFoundException: io.vertx:maven-service-factory-verticle:3.3.3::my-verticle

at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at io.vertx.core.impl.JavaVerticleFactory.createVerticle(JavaVerticleFactory.java:42)

at io.vertx.core.impl.DeploymentManager.createVerticles(DeploymentManager.java:184)

at io.vertx.core.impl.DeploymentManager.lambda$doDeployVerticle$2(DeploymentManager.java:157)

at io.vertx.core.impl.FutureImpl.checkCallHandler(FutureImpl.java:158)

at io.vertx.core.impl.FutureImpl.setHandler(FutureImpl.java:100)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:130)

at io.vertx.core.impl.DeploymentManager.doDeployVerticle(DeploymentManager.java:102)

at io.vertx.core.impl.DeploymentManager.deployVerticle(DeploymentManager.java:90)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:574)

at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:536)

at io.vertx.examples.MyDeployingVerticle.start(MyDeployingVerticle.java:16)

at io.vertx.core.impl.DeploymentManager.lambda$doDeploy$8(DeploymentManager.java:434)

at io.vertx.core.impl.ContextImpl.lambda$wrapTask$2(ContextImpl.java:316)

at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)

at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:418)

at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:440)

at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873)

at java.lang.Thread.run(Thread.java:745)

I confirm that the maven-service-factory-verticle is installed in the local m2 repository.

The same example works fine if I run it with the vertx run command.

[Konstantinos Liakos]

I think I found the solution, by carefully reading the docs:

Vert.x picks up VerticleFactory implementations from the classpath, so you just need to make sure the vertx-maven-service-factory jar file on the classpath. First you need to add the Maven verticle factory to your application’s classpath

So I added the maven vertx-maven-service-factory dependency to the maven-service-factory-api pom.xml, and it just worked!

<dependency>
 <groupId>io.vertx</groupId>
 <artifactId>vertx-maven-service-factory</artifactId>
 <version>${project.version}</version>
</dependency>