I wander why I can't return any method form repository inside Validator.I
need to have all logins inside validator. All methods works properly in
another classes but not in the validating class (implemented IValidator).
Someone knows why?
public class LoginValidator implements IValidator<String>{
@Inject
UserBO userBO;
private final List<String> existingLogins1 = userBO.findAllLogins(); //
<--- this not works only in this class ???
private final List<String> allUsers = userBO.findAll(); // <-- another
method like this also don't work
private final List<String> existingLogins2 = Arrays.asList("aaa",
"bbb");
@Override
public void validate(IValidatable<String> validatable) {
}
private void error(IValidatable<String> validatable, String errorKey) {
System.out.println("ERROR");
}
}
public class RegisterForm extends Form{
@Override
protected void onInitialize() {
User users = new User();
CompoundPropertyModel model = new CompoundPropertyModel(users);
this.setModel(model);
RequiredTextField login = new RequiredTextField("login");
//login.add(new LoginValidator());
......
}
}
When i redirect page to the registration immediately an error is displayed:
Unexpected RuntimeException
Last cause: null
Root cause:
java.lang.NullPointerException
at
pl.mnlabs.superleague.Validators.LoginValidator.<init>(LoginValidator.java:21)
at
pl.mnlabs.superleague.page.registration.RegisterForm.onInitialize(RegisterForm.java:54)
at org.apache.wicket.Component.fireInitialize(Component.java:878)
at
org.apache.wicket.MarkupContainer.internalInitialize(MarkupContainer.java:1048)
at
org.apache.wicket.MarkupContainer.addedComponent(MarkupContainer.java:1025)
at org.apache.wicket.MarkupContainer.add(MarkupContainer.java:239)
at
pl.mnlabs.superleague.page.registration.SuperLeagueRegistrationPage.onInitialize(SuperLeagueRegistrationPage.java:26)
at org.apache.wicket.Component.fireInitialize(Component.java:878)
at
org.apache.wicket.MarkupContainer.internalInitialize(MarkupContainer.java:1048)
at org.apache.wicket.Page.isPageStateless(Page.java:459)
at
org.apache.wicket.request.handler.render.WebPageRenderer.isPageStateless(WebPageRenderer.java:287)
at
org.apache.wicket.request.handler.render.WebPageRenderer.shouldRenderPageAndWriteResponse(WebPageRenderer.java:333)
at
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:193)
at
org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:175)
at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:912)
at
org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65)
at
org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253)
at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221)
at
org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:262)
at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:204)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:286)
at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at
io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at
io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
at
io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at
io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
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