Thx, Tien, for your advice which helped.
My experience in upgrading may be useful to someone, such:
First uninstalled Vaadin Plugin 2.3.3 and Vaadin Designer 1.4.3. Secondly installed Vaadin Designer 2/ Vaadin Designer for Framework 7. Because I will stick to Vaadin 7 for the moment, Designer for Vaadin 7 is of use for me.
After upgrading, Tomcat Server residing in Eclipse Mars didn’t start my Web Application anymore, got root error "
Caused by: java.lang.IllegalArgumentException: The servlets named [Xyz_ui Application]
and [xyzUIServlet]
are both mapped to the url-pattern
[/*] which is not permitted
".
After diving into that issue, I found that in
web.xml
at location
xyz-ui\src\main\webapp\WEB-INF\web.xml
, entries in
and
were changed from (earlier correctly)
xyzUIServlet
to (later wrongly)
Xyz_ui Application
. So I changed that back to the values present before upgrade.
Also, in
the earlier “Vaadin UI class to use”
com.ssg.xyz.xyz.xyzUI
was changed during upgrade to
com.example.xyz_ui.Xyz_uiUI
, so I also restored that.
Could then successfully start the webapp same as before performing upgrade.
Obviously, a new package
com.example.xyz_ui
was created containing
Xyz_uiUI.java
and
Xyz_uiTest.java
during upgrade, perhaps these can be removed later.
Also, saying from file dates and git-Checkin I see that changes were applied to webapp’s
scss
-Files. Will look at these later, for the moment it seems to run, but it may perhaps lead to impossibility of compiling project’s
SCSS
-Files to
CSS
.