We get an IllegalStateException from JspContextWrapper.findAttribute() in our logs every now and then due to the session being invalid while resolving EL variables.

In PageContextImpl.findAttribute() this exception is caught. But the exception is not caught in JspContextWrapper.findAttribute(). Shouldn't the same error handling be applied to JspContextWrapper? And according to the javadoc in JspContext the findAttribute method should not throw IllegalStateException. Or is there a reason for not catching that exception?

In PageContextImpl.findAttribute():

try {
	o = session.getAttribute(name);
} catch(IllegalStateException ise) {
	// Session has been invalidated.
	// Ignore and fall through to application scope.
}

In JspContextWrapper.findAttribute():

if (getSession() != null) {
	o = rootJspCtxt.getAttribute(name, SESSION_SCOPE);
}