Please help: Could not instantiate Seam component
dxxvi Apr 17, 2009 12:52 PMI have this in components.xml
<component name="hiddenInput" class="javax.faces.component.html.HtmlInputHidden" scope="event"/>
and in xhtml
<a4j:form> <h:inputHidden binding="#{hiddenInput}" id="hiddenComponent"/> <rich:message for="hiddenComponent" style="display: block; color: red;"/> .... <a4j:commandLink action="#{countries.deleteCountry(country)}" .../> </a4j:form>
In Java
@Name("countries") @Scope(ScopeType.PAGE) public class Countries implements Serializable { @In(required=false) private HtmlInputHidden hiddenInput; @Transactional public void deleteCountry(Country c) { try { ... } catch (Throwable throwable) { String error = "Error: " + throwable.getMessage(); FacesMessage fm = new FacesMessage(FacesMessage.SEVERITY_ERROR, error, error); FacesContext facesContext = FacesContext.getCurrentInstance(); log.debug(hiddenInput.getClientId(facesContext)); facesContext.addMessage(hiddenInput.getClientId(facesContext), fm); } } }
When I accessed the xhtml in the web browser, I got these exceptions
javax.faces.FacesException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: hiddenInput
at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:257)
at org.jboss.seam.jsf.SeamApplication.createComponent(SeamApplication.java:394)
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:337)
at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:307)
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.tag.jsf.core.ViewHandler.apply(ViewHandler.java:109)
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:140)
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:100)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at org.jboss.jsfunit.seam.JSFUnitLifecycle.render(JSFUnitLifecycle.java:59)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:333)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
at org.jboss.seam.servlet.SeamFilter$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:178)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:390)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:517)
at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
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.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
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:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:313)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:288)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:647)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:579)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:831)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: hiddenInput
at org.jboss.seam.Component.newInstance(Component.java:2106)
at org.jboss.seam.Component.getInstance(Component.java:1988)
at org.jboss.seam.Component.getInstance(Component.java:1950)
at org.jboss.seam.Component.getInstance(Component.java:1944)
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:175)
at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
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:246)
... 86 more
Caused by: java.lang.RuntimeException: by java.lang.NoClassDefFoundError: org/jboss/seam/Instance
at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:190)
at org.jboss.seam.Component.createProxyFactory(Component.java:2388)
at org.jboss.seam.Component.getProxyFactory(Component.java:1480)
at org.jboss.seam.Component.wrap(Component.java:1471)
at org.jboss.seam.Component.instantiateJavaBean(Component.java:1409)
at org.jboss.seam.Component.instantiate(Component.java:1326)
at org.jboss.seam.Component.newInstance(Component.java:2084)
... 99 more
Caused by: javassist.CannotCompileException: by java.lang.NoClassDefFoundError: org/jboss/seam/Instance
at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:165)
at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:186)
... 105 more
Caused by: java.lang.NoClassDefFoundError: org/jboss/seam/Instance
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at javassist.util.proxy.FactoryHelper.toClass2(FactoryHelper.java:177)
at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:159)
... 106 more
Caused by: java.lang.ClassNotFoundException: org.jboss.seam.Instance
at com.sun.appserv.server.util.ASURLClassLoader.loadClass(ASURLClassLoader.java:129)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 113 more
Does anybody know what my problem is?
In another page, I wrote my own event-scoped component like
@Name("addCountryForm") @Scope(ScopeType.EVENT) public class AddCountryForm { private String id; private String name; private Region region; private UIComponent hiddenComponent; ... }
and had this in xhtml and nothing wrong happened
<h:inputHidden id="hidden" binding="#{addCountryForm.hiddenComponent}"/> <rich:message for="hidden" style="display: block; color: red;"/>
Thank you.