virtual-directory-mapping fails when loading JSPs in 8.1

I'm using portal 8.1 sp3 and trying to get my JSP includes to include JSPs from a virtual directory.
          I can load HTML files from the working directory perfectly:
          <jsp:include page="/myprods/myProd1.html" />
          But whenever I try to load JSPs it fails:
          <jsp:include page="/myprods/myProd1.jsp" />
          Is this a known (bug) and expected behavior?
          My weblogic.xml setting:
          <virtual-directory-mapping>
          <local-path>c:/wls-domains/portal_servers/testcontent</local-path>
          <url-pattern>/myprods/*</url-pattern>
          </virtual-directory-mapping>
          And I have C:\wls-domains\portal_servers\testcontent\myprods which contains both myProd1.html and myProd1.jsp
          Note I cannot put my JSP's pre-compiled class in the applications classpath, I'm expecting the jsp:include to resolve all this itself.
          The error I get when trying to include the JSP is as follows:
          Error opening /SamplePortlet/index2.jsp.
          The source of this error is javax.servlet.ServletException: [HTTP:101249][ServletContext(id=3477358,name=myProject,context-path=/myProject)]: Servlet class jsp_servlet._myprods.__myprod1 for servlet /myprods/myProd1.jsp could not be loaded because the requested class was not found in the classpath C:\wls-domains\portal_servers\user_projects\applications\myApplication\.workshop\output\myProject\WEB-INF\classes;C:\wls-domains\portal_servers\user_projects\applications\myApplication\myProject\WEB-INF\classes;
          [followed by loads more classpath values]
          at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:824) at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:254) at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:188) at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:535) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:373) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:463)
          [followed by loads more stack trace]
          Thanks in advance for any assistance
          Martin

Have you received any feedback to your question ??
We have recently upgraded from WLS 7.0 to WLS 9.1 and are experiencing the same unexpected behaviour.

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