question: singleton instance class which returns randompasswordcontainercache instance concode_field_sep RandomPasswordContainerCache randomPasswordContainerCache concode_field_sep Cache<String,RandomPasswordContainer> getRandomPasswordContainerCache
target: RandomPasswordContainerCache function ( ) { if ( randomPasswordContainerCache == null ) { synchronized ( RandomPasswordContainerCache . class ) { if ( randomPasswordContainerCache == null ) { randomPasswordContainerCache = new RandomPasswordContainerCache ( ) ; } } } return randomPasswordContainerCache ; }