@Convert(Produto.class)
@ApplicationScoped
public class ConverteStringToProduto implements Converter<Produto> {
private final ProdutoService produtoService;
public ConverteStringToProduto(ProdutoService produtoService){
this.produtoService = produtoService;
}
@Override
public Produto convert(String value, Class<? extends Produto> type, ResourceBundle bundle) {
return produtoService.findByNome(value);
}
}
Error in custom provider, java.lang.NullPointerException
at br.com.caelum.vraptor.ioc.guice.GuiceComponentRegistry.bindToConstructor(GuiceComponentRegistry.java:151)
while locating br.gov.inpi.nsiweb.service.impl.ProdutoServiceImpl
while locating br.gov.inpi.nsiweb.service.ProdutoService
for parameter 0 at br.gov.inpi.nsiweb.converter.ConverteStringToProduto.<init>(ConverteStringToProduto.java:17)
at br.com.caelum.vraptor.ioc.guice.GuiceComponentRegistry.bindToConstructor(GuiceComponentRegistry.java:151)
while locating br.gov.inpi.nsiweb.converter.ConverteStringToProduto
while locating br.com.caelum.vraptor.Converter
Caused by: java.lang.NullPointerException
at br.com.caelum.vraptor.ioc.guice.AbstractScope$ScopedProvider.getName(AbstractScope.java:87)
at br.com.caelum.vraptor.ioc.guice.AbstractScope$ScopedProvider.get(AbstractScope.java:67)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:54)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:84)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:54)
at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:204)
at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:198)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1024)
at com.google.inject.internal.InternalInjectorCreator.loadEagerSingletons(InternalInjectorCreator.java:198)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:179)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:109)
at com.google.inject.Guice.createInjector(Guice.java:95)
at com.google.inject.Guice.createInjector(Guice.java:83)
at br.com.caelum.vraptor.ioc.guice.GuiceProvider.start(GuiceProvider.java:97)
at br.com.caelum.vraptor.VRaptor.init(VRaptor.java:121)
at br.com.caelum.vraptor.VRaptor.init(VRaptor.java:115)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3838)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:593)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Nâo sei onde está o erro. Poderia me ajudar?
