JSP java2d JSP 2d Taglib - Rhino gives me an error

Question

Hi!

I'm trying to draw simple 2d things in my JSP application. I found this taglib on http://ditchnet.org/2d/ but it doesn't work as expected... If I start my webapp I get the following error:

org.apache.jasper.JasperException: An exception occurred processing JSP page /index.jsp at line 20

17: 18:

Hello World!

19: 20: 21:
22: // create red gradient paint 23: var color1 = new java.awt.Color(0xC80021);

Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)

root cause

javax.servlet.ServletException: javax.servlet.jsp.JspException: Rhino encountered an error while evaluating the JavaScript in the tag with id 'polygon': null

So it says my tag with polygon is null. But it's not as you all can see... Anybody with a good idea? :) Or maybe another solution for drawing 2d stuff in jsp? Thanks!

Answer 1

I didn't gave my root directory the needed rights so it couldn't work well... Now it's allowed to write and it works like hell ;) Great Taglib btw.

Greetings,

Matthias

Answer 2

Hello, I have the same problem . Can you explain how do you give your root directory the permission write, i m trunig to do that in catanalina.policy file . I need help please. Thank's in adavance. Best regards.