Did some snooping, appears the path: "org/apache/commons/collections/map/UnmodifiableMap" has changed in version 4 (i'm using version 4-4.1) to "org/apache/commons/collections4/map/UnmodifiableMap"
What do you think?
Certainly appreciate the help,
Troy
Thus, leading to the exception:
io.druid.initialization.Initialization - Adding remote extension module[io.druid.storage.hdfs.HdfsStorageDruidModule] for class[io.druid.initialization.DruidModule]
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections/map/UnmodifiableMap
at org.apache.hadoop.conf.Configuration$DeprecationContext.<init>(Configuration.java:409)
at org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:448)
at io.druid.storage.hdfs.HdfsStorageDruidModule.configure(HdfsStorageDruidModule.java:93)
at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:230)
at com.google.inject.spi.Elements.getElements(Elements.java:103)
at com.google.inject.spi.Elements.getElements(Elements.java:94)
at com.google.inject.util.Modules$RealOverriddenModuleBuilder$1.configure(Modules.java:173)
at com.google.inject.AbstractModule.configure(AbstractModule.java:62)
at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:230)
at com.google.inject.spi.Elements.getElements(Elements.java:103)
at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:136)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:104)
at com.google.inject.Guice.createInjector(Guice.java:96)
at com.google.inject.Guice.createInjector(Guice.java:73)
at com.google.inject.Guice.createInjector(Guice.java:62)
at io.druid.initialization.Initialization.makeInjectorWithModules(Initialization.java:412)
at io.druid.cli.GuiceRunnable.makeInjector(GuiceRunnable.java:55)
at io.druid.cli.ServerRunnable.run(ServerRunnable.java:37)
at io.druid.cli.Main.main(Main.java:91)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.map.UnmodifiableMap
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)