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java.lang.NullPointerException
	at org.apache.jsp.doc_005fcomment_jsp._jspService(doc_005fcomment_jsp.java:89)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
 [wrapped] org.apache.jasper.JasperException: An exception occurred processing JSP page /doc_comment.jsp at line 17

14: Document doc = null;
15: DocumentMgr docmgr = new DocumentMgr();
16: doc = docmgr.getDocument(id);
17: if (!doc.isLoaded()) {
18: 	out.print(SkinUtil.makeErrMsg(request, "璇ユ枃绔犱笉瀛樺湪锛�));
19: 	return;
20: }

Stacktrace:
	at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:430)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.cloudwebsoft.framework.security.ProtectFilter.doFilter(ProtectFilter.java:61)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:879)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:617)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1774)
	at java.lang.Thread.run(Thread.java:662)