oracle.jsp.parse.JavaCodeException - Root cause and solution

Sometimes we see the following exception after doing a webcenter portal deployment

Error details

OracleJSP error: oracle.jsp.parse.JavaCodeException: Line # 13, oracle.jsp.parse.JspParseTagScriptlet@5cefd96
Error: Java code in jsp source files is not allowed in ojsp.next mode.

Solution

Make sure that the web.xml in the Deployer project is empty, it should not have any adf library references.

It should looks as below.

<?xml version = '1.0' encoding = 'windows-1252'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         version="2.5" xmlns="http://java.sun.com/xml/ns/javaee">
</web-app>