Strang bug - not evaluating expression
I have a problem where I keep getting the following stack.
19-Dec-2007 16:23:13 org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet Faces Servlet threw exception java.lang.NumberFormatException: For input string: "getEvidenceid" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at javax.el.ListELResolver.coerce(ListELResolver.java:166) at javax.el.ListELResolver.getValue(ListELResolver.java:51) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:58) at org.apache.el.parser.AstValue.getValue(AstValue.java:97) at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at org.apache.jasper.el.JspValueExpression.getValue(JspValueExpression.java:101) at javax.faces.component.UIOutput.getValue(UIOutput.java:176) at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:100) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:282) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:208) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:847) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:286) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262) at org.richfaces.renderkit.AbstractTableRenderer.encodeOneRow(AbstractTableRenderer.java:246) at org.richfaces.renderkit.AbstractRowsRenderer.process(AbstractRowsRenderer.java:87) at org.ajax4jsf.model.SequenceDataModel.walk(SequenceDataModel.java:101) at org.ajax4jsf.component.UIDataAdaptor.walk(UIDataAdaptor.java:994) at org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:107) at org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:92) at org.richfaces.renderkit.AbstractRowsRenderer.encodeChildren(AbstractRowsRenderer.java:139) 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 javax.faces.component.UIComponent.encodeAll(UIComponent.java:883) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:889) at com.sun.faces.application.ViewHandlerImpl.doRenderView(ViewHandlerImpl.java:258) at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:176) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216) 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.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) 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:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Unknown Source)
My jsp inside tomcat is >
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<html>
<head>
<title>evidence</title>
</head>
<body>
<f:view>
<h:form>
<rich:datascroller align="left" for="evidenceList" maxPages="20" />
<rich:spacer height="30" />
<rich:dataTable rows="10" id="evidenceList" value="#{bean.allEvidence}" var="evid">
<h:column>
<f:facet name="header">
<h:outputText value="EvidenceId" />
</f:facet>
<h:outputText value="#{evid.evidenceid}" />
</h:column>
</rich:dataTable>
</h:form>
</f:view>
</body>
</html>My entity is
package uk.ac.ukoln.impact.entity;
import java.io.Serializable;
import java.util.Set;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OneToOne;
@Entity
public class Evidence implements Serializable {
@Id
private int evidenceid;
private int msginid;
@OneToOne
@JoinTable(name="report_evidence",
joinColumns=@JoinColumn(name="evidenceId"),
inverseJoinColumns=@JoinColumn(name="reportId"))
private Set<Report> reportCollection;
private static final long serialVersionUID = 1L;
public Evidence() {
super();
}
public int getEvidenceid() {
return this.evidenceid;
}
public void setEvidenceid(int evidenceid) {
this.evidenceid = evidenceid;
}
public String getEid() {
return "jggf";
}
public void setEid(String Eid) {
}
public int getMsginid() {
return this.msginid;
}
public void setMsginid(int msginid) {
this.msginid = msginid;
}
public Set<Report> getReportCollection() {
return this.reportCollection;
}
public void setReportCollection(Set<Report> reportCollection) {
this.reportCollection = reportCollection;
}
}
If i change line 26 of my jsp to
<h:outputText value="#{evid.getEvidenceid}" />I get square bracketed output. To me it seems that the expression is not being evaluated. Any help is greatly appreciated