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java.lang.NullPointerException at java.util.regex.Matcher.getTextLength(Matcher.java:758) at java.util.regex.Matcher.matches(Matcher.java:388) at oracle.adfinternal.view.faces.webapp.DispatchServletResponse.setContentType(DispatchServletResponse.java:31) at oracle.adf.view.faces.webapp.ResourceServlet._setHeaders(ResourceServlet.java:393) at oracle.adf.view.faces.webapp.ResourceServlet.doGet(ResourceServlet.java:178) at javax.servlet.http.HttpServlet.service(HttpServlet.java:748) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at oracle.adf.view.faces.webapp.ResourceServlet.service(ResourceServlet.java:135)