Class loader problem with Lombok

[Jason Kurs]

I am getting this issue with Lombok, but could not see that anybody else has encountered this issue. My code fails to compile with vertx run server.java and I receive this back:

warning: Can't initialize javac processor due to (most likely) a class loader problem: java.lang.NoClassDefFoundError: com/sun/tools/javac/processing/JavacProcessingEnvironment

public class Server extends AbstractVerticle {

       ^

  at lombok.javac.apt.LombokProcessor.init(LombokProcessor.java:84)

  at lombok.core.AnnotationProcessor$JavacDescriptor.want(AnnotationProcessor.java:87)

  at lombok.core.AnnotationProcessor.init(AnnotationProcessor.java:140)

  at lombok.launch.AnnotationProcessorHider$AnnotationProcessor.init(AnnotationProcessor.java:54)

  at com.sun.tools.javac.processing.JavacProcessingEnvironment$ProcessorState.<init>(JavacProcessingEnvironment.java:500)

  at com.sun.tools.javac.processing.JavacProcessingEnvironment$DiscoveredProcessors$ProcessorStateIterator.next(JavacProcessingEnvironment.java:597)

  at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:690)

  at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)

  at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035)

  at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176)

  at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170)

  at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:856)

  at com.sun.tools.javac.main.Main.compile(Main.java:523)

  at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)

  at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)

  at io.vertx.core.impl.verticle.CompilingClassLoader.<init>(CompilingClassLoader.java:104)

  at io.vertx.core.impl.JavaVerticleFactory.createVerticle(JavaVerticleFactory.java:38)

  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.launcher.commands.VertxIsolatedDeployer.deploy(VertxIsolatedDeployer.java:46)

  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:160)

  at io.vertx.core.impl.launcher.commands.RunCommand.deploy(RunCommand.java:389)

  at io.vertx.core.impl.launcher.commands.RunCommand.run(RunCommand.java:262)

  at io.vertx.core.impl.launcher.VertxCommandLauncher.execute(VertxCommandLauncher.java:230)

  at io.vertx.core.impl.launcher.VertxCommandLauncher.dispatch(VertxCommandLauncher.java:365)

  at io.vertx.core.impl.launcher.VertxCommandLauncher.dispatch(VertxCommandLauncher.java:328)

  at io.vertx.core.Launcher.main(Launcher.java:49)

  Caused by: java.lang.ClassNotFoundException: com.sun.tools.javac.processing.JavacProcessingEnvironment

  at java.lang.ClassLoader.findClass(ClassLoader.java:530)

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

  at lombok.launch.ShadowClassLoader.loadClass(ShadowClassLoader.java:418)

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

  ... 37 more 

I have added the lombok.jar to my classpath (I believe). I would greatly appreciate some help!

[Jez P]

This might be helpful

http://stackoverflow.com/questions/25607272/compiling-a-java-class-in-memory-with-lombok-annotations-and-java-jdk-8

You need tools.jar on your classpath, presumably to enable the compile time annotation processing involved in Lombok

[Jason Kurs]

Great! That fixed that problem, but I was hoping that it would also fix some other compilation errors. I still get some cannot find symbol errors that do not appear inside of my IDE. I was hoping they would be fixed with Lombok being fixed because the functions that I am calling were created using annotations. Do you have any ideas?

[Jez P]

Sorry, you've exhausted my knowledge of "run-time compilation". I'm sure it's something to do with enabling the annotation processing but like I said, I don't know much about how to use the compiler at run-time. Maybe you need to do something special to add the Lombok classes to your compile class path for the embedded compiler, or maybe you need to do something special to enable the annotation processing.