question: protected void reset ( ) { eventClasses = new HashMap < String , String > ( ) ; mapNames = new HashMap < String , Properties > ( ) ; nestableMapNames = new HashMap < String , Map < String , Object > > ( ) ; nestableObjectArrayNames = new HashMap < String , Map < String , Object > > ( ) ; eventTypesXMLDOM = new HashMap < String , ConfigurationEventTypeXMLDOM > ( ) ; eventTypesLegacy = new HashMap < String , ConfigurationEventTypeLegacy > ( ) ; databaseReferences = new HashMap < String , ConfigurationDBRef > ( ) ; imports = new ArrayList < String > ( ) ; annotationImports = new ArrayList < String > ( 2 ) ; addDefaultImports ( ) ; plugInViews = new ArrayList < ConfigurationPlugInView > ( ) ; plugInVirtualDataWindows = new ArrayList < ConfigurationPlugInVirtualDataWindow > ( ) ; pluginLoaders = new ArrayList < ConfigurationPluginLoader > ( ) ; plugInAggregationFunctions = new ArrayList < ConfigurationPlugInAggregationFunction > ( ) ; plugInAggregationMultiFunctions = new ArrayList < ConfigurationPlugInAggregationMultiFunction > ( ) ; plugInSingleRowFunctions = new ArrayList < ConfigurationPlugInSingleRowFunction > ( ) ; plugInPatternObjects = new ArrayList < ConfigurationPlugInPatternObject > ( ) ; engineDefaults = new ConfigurationEngineDefaults ( ) ; eventTypeAutoNamePackages = new LinkedHashSet < String > ( ) ; variables = new HashMap < String , ConfigurationVariable > ( ) ; methodInvocationReferences = new HashMap < String , ConfigurationMethodRef > ( ) ; plugInEventRepresentation = new HashMap < URI , ConfigurationPlugInEventRepresentation > ( ) ; plugInEventTypes = new HashMap < String , ConfigurationPlugInEventType > ( ) ; revisionEventTypes = new HashMap < String , ConfigurationRevisionEventType > ( ) ; variantStreams = new HashMap < String , ConfigurationVariantStream > ( ) ; mapTypeConfigurations = new HashMap < String , ConfigurationEventTypeMap > ( ) ; objectArrayTypeConfigurations = new HashMap < String , ConfigurationEventTypeObjectArray > ( ) ; }
target:  Reset to an empty configuration.