java.lang.NumberFormatException: For input string: "currPage"

Question

I have the following bean's code:

@ManagedBean
@SessionScoped
public class PlayersReportBean

    private PlayerReportGeneratorList list = new PlayerReportGeneratorList();

    public PlayerReportGeneratorList getList() {
        return list;
    }

}

public class PlayerReportGeneratorList extends
        AbstractList<PlayerReportItem> {

    private Integer pageSize;
    private Integer currPage;
    //GET, SET, OTHER STAFF
}

and markup:

<h:selectOneMenu value="#{playersReportBean.list.pageSize}">
    <f:selectItems value="#{playersReportBean.rowsList}"/>
</h:selectOneMenu>

And I got the following exception:

java.lang.NumberFormatException: For input string: "pageSize"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:492)
    at java.lang.Integer.parseInt(Integer.java:527)
    at javax.el.ListELResolver.coerce(ListELResolver.java:163)
    at javax.el.ListELResolver.getValue(ListELResolver.java:51)
    at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
    at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
    at org.apache.el.parser.AstValue.getValue(AstValue.java:183)
    at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
    at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
    at javax.faces.component.UIOutput.getValue(UIOutput.java:170)
    at javax.faces.component.UIInput.getValue(UIInput.java:284)
    at com.sun.faces.renderkit.html_basic.MenuRenderer.getCurrentSelectedValues(MenuRenderer.java:647)
    at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:748)
    at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:843)
    at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:297)
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:877)
    at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:312)
    at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
    at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:847)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1778)
    at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:847)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1778)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1781)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1781)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:452)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
    at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
    at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
    at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at ua.com.winforce.loto_partner.admin.filter.EncodingFilter.doFilter(EncodingFilter.java:14)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)

What is the reason? Couldn't someone explain?

At the moment you are trying to parse it, the String you are trying to parse to a number, has the value "pageSize", not a numerical value. — Stultuske
– Stultuske, Commented May 19, 2015 at 10:41
java.util.List<T> does not have a property like pageSize. Do you expect it to have such a property? Look at these lines, javax.el.ListELResolver.coerce(ListELResolver.java:163) and javax.el.ListELResolver.getValue(ListELResolver.java:51). — Tiny
– Tiny, Commented May 19, 2015 at 10:54
Try #{playersReportBean.pageSize} , as pageSize is contained within PlayersReportBean not in PlayerReportGeneratorList .For {playersReportBean.list.pageSize} to work , you have to add a getter for pageSize in PlayerReportGeneratorList class. — M Alok
– M Alok, Commented May 19, 2015 at 11:28
@inigoD See, there may be a couple of reasons. As far as I remeber there was something wrong with the el-expression. I inquire it while debuggin javax.el.ListELResolver.coerce(ListELResolver.java:163). I suggest you doing the same. It may happen when you have, for instance, a managed which is a property of another managed bean. — St.Antario
– St.Antario, Commented Jun 22, 2015 at 10:17

Sarz · Accepted Answer · 2015-05-19 11:44:51Z

1

About the problem:jdk 7 doc

public class NumberFormatException extends IllegalArgumentException Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.

Problem seems with your rowsList does not resolve for Integer, Verify this you are adding in right order i.e. rowsList.add(new SelectItem(ItemValue, ItemLabel));

MORE

How I do fill p:selectOneMenu

private List<SelectItem> rowsList= new ArrayList<>(); // Initilize
//Getter Setter

then fill from data base query;

void populateRowsList(){
        rowsList=service.findAllRowsList(); // check for ItemValue,ItemLabel
}

answered May 19, 2015 at 11:44

Sarz

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1 Comment

Tiny Over a year ago

javax.faces.model.SelectItem is a JSF 1.x style. An <f:selectItems> has a var attribute introduced since JSF 2.0. Therefore, javax.faces.model.SelectItem is not needed in higher/decent versions of JSF (A List can take any arbitrary generic type parameter removing the need to convert it into a List<SelectItem>). The culprit of the exception is here in this EL #{playersReportBean.list.pageSize}. A java.util.List<T> is being unexpectedly dereferenced using pageSize which it does not have.

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