Cross Reference: /tools/apksig/src/main/java/com/android/apksig/util

`Name`	`Date`	`Size`
Up to higher level directory
`DataSink.java`	21-Aug-2018	`1.5K`
`DataSinks.java`	21-Aug-2018	`2.5K`
`DataSource.java`	21-Aug-2018	`5K`
`DataSources.java`	21-Aug-2018	`2.2K`
`ReadableDataSink.java`	21-Aug-2018	`890`