Resin og class filer

Jeg får denne fejl. Jeg tror det er noget med placeringen af mine class filer.

java.lang.NullPointerException
    at com.caucho.xml.QAttributedNode.getAttribute(QAttributedNode.java:85)
    at com.caucho.jsp.JavaGenerator.generateUseBean(JavaGenerator.java:1315)
    at com.caucho.jsp.JavaGenerator.generateTag(JavaGenerator.java:795)
    at com.caucho.jsp.JspGenerator.generateChildren(JspGenerator.java:877)
    at com.caucho.jsp.JspGenerator.generate(JspGenerator.java:315)
    at com.caucho.jsp.JspParser.parse(JspParser.java:327)
    at com.caucho.jsp.JspParser.parse(JspParser.java:232)
    at com.caucho.jsp.JspManager.createPage(JspManager.java:174)
    at com.caucho.jsp.PageManager.getPage(PageManager.java:345)
    at com.caucho.jsp.PageManager.getPage(PageManager.java:201)
    at com.caucho.jsp.QServlet.getPage(QServlet.java:215)
    at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:129)
    at com.caucho.server.http.Invocation.service(Invocation.java:311)
    at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
    at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:221)
    at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:163)
    at com.caucho.server.TcpConnection.run(TcpConnection.java:137)
    at java.lang.Thread.run(Thread.java:484)