Hello,
I am following book Enjoying web development with wicket, using Wicket
1.3.2.
Everythink worked fine till I added form.add(quoteDate).
Please check code and stack trace below and let me know any advice.
Thank you
public class GetQuoteSymbol extends WebPage {
private Model model;
private Model dateModel;
public GetQuoteSymbol() {
FeedbackPanel feedback = new FeedbackPanel("msgs");
add(feedback);
Form form = new Form("f") {
protected void onSubmit() {
String sym = (String) model.getObject();
Date date = (Date) dateModel.getObject();
int stockValue = (sym +
date.toString()).hashCode() % 100;
QuoteResult quoteResult = new
QuoteResult(stockValue);
setResponsePage(quoteResult);
}
};
model = new Model();
List symbols = new ArrayList();
symbols.add("MSFT");
symbols.add("IBM");
symbols.add("RHAT");
DropDownChoice symbol = new DropDownChoice("sym", model,
symbols);
symbol.setRequired(true);
form.add(symbol);
dateModel = new Model();
TextField quoteDate = new TextField("quoteDate", dateModel,
Date.class);
quoteDate.setRequired(true);
quoteDate.add(new DatePicker());
//HERE IS A PROBLEM
form.add(quoteDate);
add(form);
}
}
stack trace:
WicketMessage: Can't instantiate page using constructor public
com.myapp.stockquote.GetQuoteSymbol()
Root cause:
java.lang.ClassNotFoundException: org.joda.time.DateTime
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1363)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1209)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at
org.apache.wicket.extensions.yui.calendar.DatePicker.class$(DatePicker.java:86)
at
org.apache.wicket.extensions.yui.calendar.DatePicker.getDatePattern(DatePicker.java:438)
at
org.apache.wicket.extensions.yui.calendar.DatePicker.checkComponentProvidesDateFormat(DatePicker.java:296)
at
org.apache.wicket.extensions.yui.calendar.DatePicker.bind(DatePicker.java:129)
at org.apache.wicket.Component.add(Component.java:922)
at com.myapp.stockquote.GetQuoteSymbol.<init>(GetQuoteSymbol.java:57)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:149)
at
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58)
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:262)
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1166)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1243)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1330)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:358)
at
org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:124)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
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