I am trying to get general tree support - bean. I have one common ACLTree class, and then its implementation. In my JSF document, I am trying to access a value beyond # {mybackingbean.property}. But I get an ELException:
javax.el.ELException: /modules/useradmin/acl.xhtml @30,55 value="#{ACOTree.root}": java.lang.IllegalAccessException: Class javax.el.BeanELResolver can not access a member of class de.xy.jsf.beans.ACLTree with modifiers "public"
I am not very familiar with the concepts of generics and reflection api, so maybe this is just not possible.
stack trace:
javax.faces.FacesException: javax.el.ELException: /modules/useradmin/rights.xhtml @30,55 value="#{ACOTree.root}": java.lang.IllegalAccessException: Class javax.el.BeanELResolver can not access a member of class de.xy.jsf.beans.ACLTree with modifiers "public" at javax.faces.component.UIData.getValue(UIData.java:580) at org.ajax4jsf.component.UIDataAdaptorBase.getValue(UIDataAdaptorBase.java:1647) at org.richfaces.component.UITree.createDataModel(UITree.java:679) at org.ajax4jsf.component.UIDataAdaptorBase.getExtendedDataModel(UIDataAdaptorBase.java:621) at org.ajax4jsf.component.UIDataAdaptorBase.setRowKey(UIDataAdaptorBase.java:339) at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:688) at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:629) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:827) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:200) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:195) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:827) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:233) at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:270) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:827) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:883) at javax.faces.render.Renderer.encodeChildren(Renderer.java:137) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:827) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:279) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.richfaces.renderkit.TabRendererBase.encodeChildren(TabRendererBase.java:149) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:827) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.richfaces.renderkit.html.TabPanelRenderer.doEncodeChildren(TabPanelRenderer.java:266) at org.richfaces.renderkit.html.TabPanelRenderer.doEncodeChildren(TabPanelRenderer.java:261) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:827) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:883) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:889) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:578) 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:108) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:266) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:159) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215) at cz.softeu.rewriter.RewriterFilter.doFilter(RewriterFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97) at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165) at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791) at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693) at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954) at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57) at com.sun.grizzly.ContextTask.run(ContextTask.java:69) at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309) at java.lang.Thread.run(Thread.java:636) Caused by: javax.el.ELException: /modules/useradmin/rights.xhtml @30,55 value="#{ACOTree.root}": java.lang.IllegalAccessException: Class javax.el.BeanELResolver can not access a member of class de.christianvette.boombox.jsf.beans.ACLTree with modifiers "public" at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:76) at javax.faces.component.UIData.getValue(UIData.java:577) ... 75 more Caused by: java.lang.IllegalAccessException: Class javax.el.BeanELResolver can not access a member of class de.xy.jsf.beans.ACLTree with modifiers "public" at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:95) at java.lang.reflect.Method.invoke(Method.java:607) at javax.el.BeanELResolver.getValue(BeanELResolver.java:302) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:175) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:58) at com.sun.el.parser.AstValue.getValue(Unknown Source) at com.sun.el.ValueExpressionImpl.getValue(Unknown Source) at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71) ... 76 more
general class:
abstract class ACLTree<T>{ private static final Logger log = Logger.getLogger(ACLTree.class); public TreeNodeImpl<NodeData> root = null; public TreeNodeImpl<NodeData> nodes = new TreeNodeImpl<NodeData>(); public ACLTree() { log.debug("constructor of generic class"); } public TreeNodeImpl<NodeData> getNodes() { return nodes; } public void setNodes(TreeNodeImpl<NodeData> nodes) { this.nodes = nodes; } public TreeNodeImpl<NodeData> getRoot() { log.debug("Entering getRoot()"); if(root == null) buildTree(); return root; } public void setRoot(TreeNodeImpl root) { this.root = root; } public TreeNodeImpl createTreeNode(ACLObject item) { } abstract Collection<T> getData();
}
implementation:
public class ACOTree extends ACLTree<ACO>{ @Override public Collection<ACO> getData() { return AclManagerImpl.getInstance().getAllACOs(); } }
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