The encoding property of jsp files is read only but this means user would
need to change it in their code; but assuming that properties are provided
so they don't have to do that. I thought at one time this property was changable.
Is there a reason that the property needs to be read only ?
No, this property was always read-only and it was designed that way. Changing it
to read-write would be possible, but very complicated and challenging given the
complexity of the JSP spec in this area. So I consider this to be an
enhancement, not a bug. Also, we did not really see any user interest in having
this property read-write, so I don't think this is high priority, changing to P3.
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue.
Thanks for your cooperation,
NetBeans IDE 8.2 Release Boss