JSP compilation fails in weblogic

I have a Struts 1.3.8 web application running in Weblogic 10.3.5.
One of its JSP's contains the following code

<logic:notEqual name="q1Field" property="strings" value="<%="\n"%>">

But its compilation fails

xxxx.jsp:312:103: This attribute is not recognized. <logic:notEqual name="q1Field" property="strings" value="<%="\n"%>">
 
(there's a "^" sign just underneath the "\n")

Trying with single quotes

<logic:notEqual name="q1Field" property="strings" value="<%='\n'%>">

gives

xxxx.jsp:312:98: The method setValue(String) in the type CompareTagBase is not applicable for the arguments (char)
                                        <logic:notEqual name="q1Field" property="strings" value="<%='\n'%>">

(there's a ^-^ sign just underneath the "<%=)