question: return default os instance . concode_field_sep PlaceHolder placeHolder concode_field_sep long getCpuFrequency concode_elem_sep long getNetworkBytesRead concode_elem_sep long getCumulativeCpuTime concode_elem_sep int getNumProcessors concode_elem_sep long getStorageBytesWritten concode_elem_sep long getPhysicalMemorySize concode_elem_sep long getStorageBytesRead concode_elem_sep long getVirtualMemorySize concode_elem_sep long getAvailablePhysicalMemorySize concode_elem_sep long getNetworkBytesWritten concode_elem_sep long getAvailableVirtualMemorySize concode_elem_sep float getCpuUsage concode_elem_sep int getNumCores
target: SysInfo function ( ) { if ( Shell . LINUX ) { return new SysInfoLinux ( ) ; } if ( Shell . WINDOWS ) { return new SysInfoWindows ( ) ; } throw new UnsupportedOperationException ( "srini_string" ) ; }