the Pop up menu needs more than 20 sec to appear on XML files,
such as validator.xml, struts-config.xml ….,
and from my Firewall, I was told that eclilpse process was trying to connect Internet (It seems to connect the web address defined in the XML file, e.g.
<!DOCTYPE struts-config
PUBLIC “-//Apache Software Foundation//DTD Struts Configuration 1.1//EN”
“http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd“>
)
and I think that was the reason.
And, if I delete the http link marked red, the menu pops normaly.