500 Servlet Exception

java.lang.NoSuchMethodError: com.caucho.server.connection.CauchoResponse.setCharacterEncoding(Ljava/lang/String;)V
	at com.caucho.server.webapp.ErrorPageManager.sendError(ErrorPageManager.java:456)
	at com.caucho.server.connection.AbstractHttpResponse.sendError(AbstractHttpResponse.java:501)
	at com.caucho.server.connection.AbstractHttpResponse.sendError(AbstractHttpResponse.java:455)
	at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:170)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:173)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
	at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:420)
	at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514)
	at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:520)
	at com.caucho.util.ThreadPool.run(ThreadPool.java:442)
	at java.lang.Thread.run(Thread.java:662)

Resin-3.0.27 (built Mon, 19 Jan 2009 01:26:35 PST)