Profile parameter that user creates while installing j2ee is lost. User will not able to start j2ee engine. Installation of j2ee in standard, all the files will be saving in the operating system when parameters profile is additional. The parameters will not remain in the TPFHT and TPFET tables. When online profile maintain (transaction RZ, RZ11) it edit the TPFHT and TPFET tables and parameters is copy by these tables in the operating system files when the profile activate by user for first time. When user will start the SAP system and resources are editing in different size and the operating system files will be interpreted.
When transaction RZ10 will be activated by the user than it helps to protect from overwritten in the old operating system files and user will restore the old version if it will be necessary.