Below stack file generation process is to update java stack to latest version which I have explained in the next blog, you can find the link at the end of this blog page.
First lets check the verification status of the system in maintenance planner, here fro example one system verification status is in error.
In order to resolve above error ,
Go to LMDB of the SAP system , resynchronize the technical system <SID>system from SLD
Click on tab SAP Support Portal->Upload To SAP Support Portal
Save and again open the maintenance Planner
After update of <SID>system in LMDB, it is updated with today's date.
Now click on system <SID>
Click Plan a Maintenance
After selecting release version ,Confirm selection
Select the respective kernel files and Click Confirm selection
Add JAVA Patches
Select option - Include selected Java patches into stack.xml
Click Validate Dependencies
OK and click SAVE, Next
Download Stack XML file and push to download basket
Copy the stack file to respective path where all the SCA files are placed for upgrade.
Next we will proceed with the upgrade of the java system to latest version NW 7.4 SP 19 using SUM tool (Software Update Manager).I have explained the same in the next blog please find the below link for the same