org.apache.commons.exec
Interfaces 
ExecuteResultHandler
ExecuteStreamHandler
Executor
ProcessDestroyer
TimeoutObserver
Classes 
CommandLine
DefaultExecuteResultHandler
DefaultExecutor
ExecuteWatchdog
InputStreamPumper
LogOutputStream
OS
PumpStreamHandler
ShutdownHookProcessDestroyer
StreamPumper
Watchdog
Exceptions 
ExecuteException