vertx-http-server-groovy

This repo is to reproduce the following issue: run:

1. mvn install
2. Observe the following output: Exception in thread "Thread-2" java.lang.NoClassDefFoundError: io/vertx/core/file/FileSystemException at io.vertx.core.file.impl.FileSystemImpl.deleteInternal(FileSystemImpl.java:585) at io.vertx.core.file.impl.FileSystemImpl.deleteRecursive(FileSystemImpl.java:212) at io.vertx.core.impl.FileResolver.deleteCacheDir(FileResolver.java:315) at io.vertx.core.impl.FileResolver.lambda$setupCacheDir$1(FileResolver.java:304) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.ClassNotFoundException: io.vertx.core.file.FileSystemException at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50) at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239) ... 5 more