Enable Precompilation of jspx pages in weblogic.

To enable locate the weblogic.xml and check the related option "Precompile JSPs"

or

add the following elements in weblogic.xml under the document root:

Pros

• Errors in pages that cannot be identified with java compilation (javac) or ADF BC validation (ojdeploy) will be identified upon deployment and not during testing.
• No more delay upon page request for the 1st time. Without precompilation the first time a page is requested, then the jspx is compiled into java.

Cons

• Longer deployment time. eg it need a few mins more to compile all jspx into java files

In case of error you ll get upon deployment something like this:

Dig more:

• http://download.oracle.com/docs/cd/E14571_01/web.1111/e13712/reference.htm