기존에 사용하던 Resin 1.2 버전을 2.1.6으로 업하려구 하는데..

다음과 같은 에러가 발생합니다..

현재로선 이유를 알수가 없군요..

도와주시기 바랍니다..

500 Servlet Exception
java.lang.NullPointerException
at java.util.Hashtable.remove(Hashtable.java:421)
at com.caucho.sql.DBPool.forceClose(DBPool.java:1804)
at com.caucho.sql.DBPool.close(DBPool.java:1786)
at _logincheck1__jsp._jspService(/logincheck1.jsp:119)
at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
at com.caucho.jsp.Page.subservice(Page.java:497)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
at com.caucho.server.http.Invocation.service(Invocation.java:312)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:244)
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)


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Resin 2.1.6 (built Fri Nov 8 08:18:18 PST 2002)