I am migrating from SpringBoot 2.7.18 to 3.0.13 with the accompanying migration from Tomcat 9.0.83 to 10.1.16.
I am trying to render a large message, around 8kB. In Tomcat 9, the content renders correctly, In Tomcat 10 the content doesn't render at all, and there's no error message. I noticed if I make the content smaller, it does render correctly. Leaving the content too big to render in Tomcat 10, I debugged down to... org/springframework/web/servlet/tags/MessageTag.doEndTag ...and noticed "this.pageContext.getOut()" returns "org.apache.jasper.runtime.JspWiterImpl". I also noticed the buffer size was 8192, which should be irrelevant. However, I've noticed if I set the following JSP directive at the top of the page, it renders OK <%@ page buffer="32kb" %> Has something broken JspWriterImpl? I've tried upgrading to Tomcat 10.1.34 which doesn't resolve the issue. Thoughts?
