InstantiationException: Could not instantiate Seam component
arielt Jul 3, 2008 3:20 AMI get this exception I don't know how to solve. I am pretty sure it is a dumb mistake, but I can't see it.
I get the same error extending EntityQuery too.
Any ideas?
TIA.
-Ariel
Exception
javax.faces.FacesException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: paisesManager at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:240) at org.jboss.seam.jsf.SeamApplication.createComponent(SeamApplication.java:327) at com.sun.facelets.tag.jsf.ComponentHandler.createComponent(ComponentHandler.java:224) at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:139) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314) at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:64) at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:131) at com.sun.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:310) at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:280) at com.sun.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:68) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25) at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:248) at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:294) at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:273) at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:144) at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:113) at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49) at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25) at com.sun.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:95) at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:524) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:567) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:189) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:260) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 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:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Unknown Source) Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: paisesManager at org.jboss.seam.Component.newInstance(Component.java:1970) at org.jboss.seam.Component.getInstance(Component.java:1873) at org.jboss.seam.Component.getInstance(Component.java:1840) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64) at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) at org.jboss.el.parser.AstValue.getValue(AstValue.java:63) at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71) at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:229) ... 71 more Caused by: javax.naming.NameNotFoundException: \PaisesManagerBean not bound at org.jnp.server.NamingServer.getBinding(NamingServer.java:529) at org.jnp.server.NamingServer.getBinding(NamingServer.java:537) at org.jnp.server.NamingServer.getObject(NamingServer.java:543) at org.jnp.server.NamingServer.lookup(NamingServer.java:267) at org.jnp.server.NamingServer.lookup(NamingServer.java:270) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:667) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) at javax.naming.InitialContext.lookup(Unknown Source) at org.jboss.seam.Component.instantiateSessionBean(Component.java:1287) at org.jboss.seam.Component.instantiate(Component.java:1273) at org.jboss.seam.Component.newInstance(Component.java:1966) ... 84 more
XHTML
<h:form> <rich:spacer height="30" /> <rich:scrollableDataTable binding="#{paisesManager.table}" sortMode="single" rowKey="#{paises.idpais}" rowKeyVar="rkv" frozenColCount="1" height="200px" selection="#{paisesManager.selection}" rendered="#{not empty paisesManager.allPaises}" width="80%" id="sdtPaises" columnClasses="col" var="paises" value="#{paisesManager.allPaises}" > <rich:column id="idpais" sortable="#{paisesManager.sortable}"> <f:facet name="header"><h:outputText styleClass="headerText" value="ID" /></f:facet> <h:outputText value="#{paises.idpais}" /> </rich:column> <rich:column id="descripcion" sortable="true"> <f:facet name="header"><h:outputText styleClass="headerText" value="Descripcion" /></f:facet> <h:outputText value="#{paises.descripcion}" /> </rich:column> <rich:column id="isoNumber" sortable="#{paisesManager.sortable}"> <f:facet name="header"><h:outputText styleClass="headerText" value="ISO #" /></f:facet> <h:outputText value="#{paises.isoNumber}" /> </rich:column> <rich:column id="iso2Chars" sortable="#{paisesManager.sortable}"> <f:facet name="header"><h:outputText styleClass="headerText" value="ISO 2" /></f:facet> <h:outputText value="#{paises.iso2Chars}" /> </rich:column> <rich:column id="iso3Chars" sortable="#{paisesManager.sortable}"> <f:facet name="header"><h:outputText styleClass="headerText" value="ISO 3" /></f:facet> <h:outputText value="#{paises.iso3Chars}" /> </rich:column> <rich:column id="caracteristica" sortable="#{paisesManager.sortable}"> <f:facet name="header"><h:outputText styleClass="headerText" value="Caracteristica" /></f:facet> <h:outputText value="#{paises.caracteristica}" /> </rich:column> </rich:scrollableDataTable> <rich:spacer height="20px"/> <a4j:commandButton value="Mostrar Seleccionados" action="#{paisesManager.takeSelection}" /> </h:form>
Bean
@Stateless @Name("paisesManager") @Scope(ScopeType.SESSION) public class PaisesManagerBean implements PaisesManagerLocal { @PersistenceContext private EntityManager em; /* OR (tried this too) @PersistenceContext private EntityManager entityManager; OR @In @PersistenceContext private EntityManager entityManager; */ private List<Paises> allPaises = new ArrayList<Paises>(); private List<Paises> selectedPaises = new ArrayList<Paises>(); private Paises paises; private SimpleSelection selection; private static final boolean SORTABLE = false; public PaisesManagerBean() { } private UIScrollableDataTable table; public UIScrollableDataTable getTable() { return table; } public void setTable(UIScrollableDataTable table) { this.table = table; } public void destroy() { } public List<Paises> getAllPaises() { if (this.allPaises == null) { this.allPaises = this.initAllPaises(); } return this.allPaises; } public Paises getPaises() { return this.paises; } public List<Paises> getSelectedPaises() { return this.selectedPaises; } public SimpleSelection getSelection() { return this.selection; } public List<Paises> initAllPaises() { return em.createQuery("select paises from Paises paises").getResultList(); } public boolean isSortable() { return SORTABLE; } public void setAllPaises(List<Paises> allPaises) { this.allPaises = allPaises; } public void setSelectedPaises(List<Paises> selectedPaises) { this.selectedPaises = selectedPaises; } public void setSelection(SimpleSelection simpleSelection) { this.selection = simpleSelection; } public String takeSelection() { getSelectedPaises().clear(); Iterator<Object> iterator = getSelection().getKeys(); while (iterator.hasNext()){ Object key = iterator.next(); table.setRowKey(key); if (table.isRowAvailable()) { getSelectedPaises().add((Paises) table.getRowData()); } } System.out.println("Mostrando paises seleccionados:"); for (Paises p : getSelectedPaises()) { System.out.println(p); } System.out.println("Fin Mostrando paises seleccionados"); return null; } }
components.xml
<?xml version="1.0" encoding="UTF-8"?> <components xmlns="http://jboss.com/products/seam/components" xmlns:core="http://jboss.com/products/seam/core" xmlns:persistence="http://jboss.com/products/seam/persistence" xmlns:drools="http://jboss.com/products/seam/drools" xmlns:bpm="http://jboss.com/products/seam/bpm" xmlns:security="http://jboss.com/products/seam/security" xmlns:mail="http://jboss.com/products/seam/mail" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation= "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.1.xsd http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.1.xsd http://jboss.com/products/seam/drools http://jboss.com/products/seam/drools-2.1.xsd http://jboss.com/products/seam/bpm http://jboss.com/products/seam/bpm-2.1.xsd http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.1.xsd http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-2.1.xsd http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.1.xsd"> <core:init debug="true" jndi-pattern="upcn-ear/\#{ejbName}/local"/> <security:identity authenticate-method="#{authenticator.authenticate}" remember-me="true"/> <persistence:managed-persistence-context name="entityManager" auto-create="true" persistence-unit-jndi-name="java:/upcnEntityManagerFactory"/> </components>
persistence.xml
<?xml version="1.0" encoding="UTF-8"?> <!-- Persistence deployment descriptor for dev profile --> <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="upcn"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>java:/upcnDatasource</jta-data-source> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.FirebirdDialect"/> <property name="hibernate.hbm2ddl.auto" value="validate"/> <property name="hibernate.show_sql" value="true"/> <property name="hibernate.format_sql" value="true"/> <property name="jboss.entity.manager.factory.jndi.name" value="java:/upcnEntityManagerFactory"/> </properties> </persistence-unit> </persistence>