If you are upgrading from a previous version of AEM forms
on JEE and changing your AEM forms on JEE Server, you may disrupt
any processes that use the document form variable or digital signatures.
This is because these forms are rendered only once, setting the
submit URL. Changing the server breaks the certificate.
Choose the solution that is most appropriate for your AEM forms
on JEE environment from the following solutions:
Solution 1:
Complete all processes that use a form document
variable before you upgrade or move to the remote server. Use this
method if you maintain legacy AEM forms on JEE servers after the
upgrade. This approach also eliminates the need for
throw-away
work
to be done to manage the redirection of the form submissions. This
method is not practical if you have many outstanding processes.
Solution 2:
If the server being upgraded is not being
decommissioned, a reverse proxy approach is preferable. With this
method, you maintain the reverse proxy on the old system until all
the migrated processes are completed.
S
olution 3:
You can use the Apache
mod_rewrite
module
to modify the embedded URLs in each form as they are delivered to
the client.
Note:
If your AEM forms on JEE implementation is on
IPv6, clients using EJB invocation for PDF creation report exceptions.
This is a
known issue
attributed to Sun JDK
6.
