Source:
public void configure(Binder binder) { MapBinder.newMapBinder(binder, String.class, SearchableVersionedDataFinder.class) .addBinding(SCHEME) .to(HdfsFileTimestampVersionFinder.class) .in(LazySingleton.class); Binders.dataSegmentPullerBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentPuller.class).in(LazySingleton.class); Binders.dataSegmentPusherBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentPusher.class).in(LazySingleton.class); Binders.dataSegmentKillerBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentKiller.class).in(LazySingleton.class); Binders.dataSegmentFinderBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentFinder.class).in(LazySingleton.class); final Configuration conf = new Configuration(); conf.setClassLoader(getClass().getClassLoader()); ClassLoader currCtxCl = Thread.currentThread().getContextClassLoader(); try { Thread.currentThread().setContextClassLoader(getClass().getClassLoader()); FileSystem.get(conf); } catch (IOException ex) { throw Throwables.propagate(ex); } finally { Thread.currentThread().setContextClassLoader(currCtxCl); } if (props != null) { for (String propName : System.getProperties().stringPropertyNames()) { if (propName.startsWith("hadoop.")) { conf.set(propName.substring("hadoop.".length()), System.getProperty(propName)); } } } binder.bind(Configuration.class).toInstance(conf); JsonConfigProvider.bind(binder, "druid.storage", HdfsDataSegmentPusherConfig.class); Binders.taskLogsBinder(binder).addBinding("hdfs").to(HdfsTaskLogs.class); JsonConfigProvider.bind(binder, "druid.indexer.logs", HdfsTaskLogsConfig.class); binder.bind(HdfsTaskLogs.class).in(LazySingleton.class); LifecycleModule.register(binder, HdfsStorageAuthentication.class); }

Target:
public void configure(Binder binder) { MapBinder.newMapBinder(binder, String.class, SearchableVersionedDataFinder.class) .addBinding(SCHEME) .to(HdfsFileTimestampVersionFinder.class) .in(LazySingleton.class); Binders.dataSegmentPullerBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentPuller.class).in(LazySingleton.class); Binders.dataSegmentPusherBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentPusher.class).in(LazySingleton.class); Binders.dataSegmentKillerBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentKiller.class).in(LazySingleton.class); Binders.dataSegmentFinderBinder(binder).addBinding(SCHEME).to(HdfsDataSegmentFinder.class).in(LazySingleton.class); final Configuration conf = new Configuration(); conf.setClassLoader(getClass().getClassLoader()); ClassLoader currCtxCl = Thread.currentThread().getContextClassLoader(); try { Thread.currentThread().setContextClassLoader(getClass().getClassLoader()); FileSystem.get(conf); } catch (IOException ex) { throw Throwables.propagate(ex); } finally { Thread.currentThread().setContextClassLoader(currCtxCl); } if (props != null) { for (String propName : System.getProperties().stringPropertyNames()) { if (propName.startsWith("hadoop.")) { conf.set(propName.substring("hadoop.".length()), System.getProperty(propName)); } } } binder.bind(Configuration.class).toInstance(conf); JsonConfigProvider.bind(binder, "druid.storage", HdfsDataSegmentPusherConfig.class); Binders.taskLogsBinder(binder).addBinding("hdfs").to(HdfsTaskLogs.class); JsonConfigProvider.bind(binder, "druid.indexer.logs", HdfsTaskLogsConfig.class); binder.bind(HdfsTaskLogs.class).in(LazySingleton.class); JsonConfigProvider.bind(binder, "druid.hadoop.security.kerberos", HdfsKerberosConfig.class); binder.bind(HdfsStorageAuthentication.class).in(ManageLifecycle.class); LifecycleModule.register(binder, HdfsStorageAuthentication.class); }