LPS-39331 Plugin portlet on SPI should already be shared session in order to bring back the delta session attributes to MPI
LPS-39331 Pull out AutoRemoveFileInputStream as a standalone class
LPS-39331 Do not pre-parse request to UploadServletRequest, because some third-part libs may expect to see original input format, for those case, use a file to exchange data between MPI/SPI.
LPS-39331 Fix unit tests
LPS-39331 Rename
LPS-39331 Change log message