2 Replies Latest reply on Jan 1, 2011 8:52 AM by isonisak

seamgen: duplicate method "getComponent"

szm Mar 8, 2010 2:31 PM

Hi,

I'm new to Seam, and tried SeamGen on an simple DB schema. One of existing tables has Component name (business requirement reasons). Unfortunately this lead to following depicted error. Is there any simple way to get rid of these errors (when accessing Browse data - Component List menu item) ?

Thank you.

org.jboss.seam.InstantiationException: Could not instantiate Seam component: componentList
     at org.jboss.seam.Component.newInstance(Component.java:2144)
     at org.jboss.seam.Component.getInstance(Component.java:2021)
     at org.jboss.seam.Component.getInstance(Component.java:1983)
     at org.jboss.seam.Component.getInstance(Component.java:1977)
     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:148)
     at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:51)
     at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
     at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
     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 javax.faces.component.UIOutput.getValue(UIOutput.java:184)
     at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:201)
     at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:284)
     at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:154)
     at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:861)
     at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java:190)
     at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.java:166)
     at org.jboss.seam.ui.renderkit.DecorateRendererBase.doEncodeChildren(DecorateRendererBase.java:152)
     at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.java:92)
     at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
     at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277)
     at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258)
     at org.richfaces.renderkit.html.SimpleToggleControlTemplate.doEncodeChildren(SimpleToggleControlTemplate.java:347)
     at org.richfaces.renderkit.html.SimpleToggleControlTemplate.doEncodeChildren(SimpleToggleControlTemplate.java:342)
     at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120)
     at org.richfaces.renderkit.html.SimpleTogglePanelRenderer.encodeChildren(SimpleTogglePanelRenderer.java:186)
     at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:930)
     at javax.faces.render.Renderer.encodeChildren(Renderer.java:148)
     at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:930)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:933)
     at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
     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 javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
     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$FilterChainImpl.doFilter(SeamFilter.java:83)
     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
     at org.jboss.seam.servlet.SeamFilter$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$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)
     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
     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: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:235)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
     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:158)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
     at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.RuntimeException: duplicate method: getComponent in com.etr.msesc.action.ComponentList_$$_javassist_seam_67
     at org.jboss.seam.util.ProxyFactory.createClass3(ProxyFactory.java:355)
     at org.jboss.seam.util.ProxyFactory.createClass2(ProxyFactory.java:325)
     at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:284)
     at org.jboss.seam.Component.createProxyFactory(Component.java:2426)
     at org.jboss.seam.Component.getProxyFactory(Component.java:1513)
     at org.jboss.seam.Component.wrap(Component.java:1504)
     at org.jboss.seam.Component.instantiateJavaBean(Component.java:1442)
     at org.jboss.seam.Component.instantiate(Component.java:1359)
     at org.jboss.seam.Component.newInstance(Component.java:2122)
     ... 85 more
Caused by: javassist.bytecode.DuplicateMemberException: duplicate method: getComponent in com.etr.msesc.action.ComponentList_$$_javassist_seam_67
     at javassist.bytecode.ClassFile.testExistingMethod(ClassFile.java:593)
     at javassist.bytecode.ClassFile.addMethod(ClassFile.java:577)
     at org.jboss.seam.util.ProxyFactory.override(ProxyFactory.java:672)
     at org.jboss.seam.util.ProxyFactory.overrideMethods(ProxyFactory.java:646)
     at org.jboss.seam.util.ProxyFactory.make(ProxyFactory.java:566)
     at org.jboss.seam.util.ProxyFactory.createClass3(ProxyFactory.java:346)
     ... 93 more

1. Re: seamgen: duplicate method "getComponent"

isonisak Jan 1, 2011 8:23 AM (in response to szm)

Hi

   I have this same error with Seam 2.2.1.CR2, JBoss AS 6 Final, derby 10.5.3.0
   Application is generated with seam-gen with 'ear' mode ( .war , .jar )

   The error comes from same class 'componentList', because business requirement is
   that in database is table Component. Is this object reserved to Seam ?

   duplicate method: getComponent in
   com.mydomain.electrwiregen3.action.ComponentList$$javassistseam2
Actions
2. Re: seamgen: duplicate method "getComponent"

isonisak Jan 1, 2011 8:52 AM (in response to szm)

My application works with other entities.
So Component is reserver to JSF ? and this entity name
must be changed to something else. Database changes are not needed.
Actions

Go to original post