The illegal processing in the servlet or JSP was detected during executing the request.

Description

An invalid processing in the servlet or JSP was detected during the execution of a request. The operation for the request or the response might be executed from multiple threads.

Action

From the log, identify the servlet or JSP that was executed just before the output of this message, save the following objects in instance variables, and then confirm that these objects are not being executed from multiple threads.

• javax.servlet.ServletOutputStream object
• javax.servlet.http.HttpServletResponse object
• java.io.PrintWriter object acquired by the getWriter method of the javax.servlet.ServletResponse class