I use J2EE Eclipse to develope liferay project, I find sometimes that intellisense is not work in JSP File, It will be boresome very much, hot to fix it. I'm sure the function is work fine in Java File.

PS: The validation code function is not work in eclipse IDE sometimes , for example (e.g.), I dinfine <porltet:defineObjects/> in my jsp, but I get a red error line in J2EE eclipse when I use renderRequest instance after <portlet:defineObjects/>. How to Fix it. because, it's not correct validation in good time!

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Hai..Sometyms..it happens..due page corruption..even if u r defining..<portlet:defineObjects/> tag correctly..but still the error..remaining..

So..Do a thing..Ctrl+x the page code and Save, Ctrl+v..And Save on the same page where u r... error 'l move out..

Are you using Liferay IDE? If so, this question is better asked in the Liferay IDE forum because the developer of Liferay IDE is there and not here.