NumberFormatException when using List in datatable

Question

I am encountering a NumberFormatException when trying to display a List in a datatable. I know the general reason why this exception occurs, but not able to figure out where it applies in my situation.

Here is my ice:datatable display code

<ice:dataTable id="transformations" var="transformationList" width="700"
value="#{ShowStatusBean.transformationStatusList}" rows="10"    
partialTriggers="refreshButton"  autoSubmit="true">

<ice:column>
<ice:outputText value="#{transformationList.businessDate}" />
</ice:column>

<ice:column>
<ice:outputText value="#{transformationList.service}" />
</ice:column>

<ice:column>
<ice:outputText value="#{transformationList.status}" />
</ice:column>

</ice:dataTable>

And my backing bean code

public List<TransformationBean> getTransformationStatusList() {
    transformationStatusList = new ArrayList<TransformationBean>();
    transformationStatusList.add(new TransformationBean("2012-01-01", "serviceName", "status1"));
    transformationStatusList.add(new TransformationBean("2012-01-02", "serviceName2", "status2"));
    return transformationStatusList;
}

And finally the stack trace

    23:59:57 ERROR [f-tuning)'] D2DFaceletViewHandler     - Problem in renderResponse: For input string: "businessDate"
java.lang.NumberFormatException: For input string: "businessDate"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
    at java.lang.Integer.parseInt(Integer.java:449)
    at java.lang.Integer.parseInt(Integer.java:499)
    at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:138)
    at com.sun.el.parser.AstValue.getValue(AstValue.java:96)
    at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:183)
    at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
    at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:56)
    at javax.faces.component.UIOutput.getValue(UIOutput.java:80)
    at com.icesoft.faces.renderkit.dom_html_basic.OutputTextRenderer.encodeEnd(OutputTextRenderer.java:91)
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:369)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.component.ext.renderkit.TableRenderer.encodeChildren(TableRenderer.java:896)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:357)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.component.util.CustomComponentUtils.renderChild(CustomComponentUtils.java:338)
    at com.icesoft.faces.component.panelpopup.PanelPopupRenderer.encodeBegin(PanelPopupRenderer.java:240)
    at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:515)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:355)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:357)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:357)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.component.util.CustomComponentUtils.renderChild(CustomComponentUtils.java:338)
    at com.icesoft.faces.component.paneltabset.PanelTabSetRenderer.writeTabCell(PanelTabSetRenderer.java:983)
    at com.icesoft.faces.component.paneltabset.PanelTabSetRenderer.encodeEnd(PanelTabSetRenderer.java:422)
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)
    at javax.faces.component.UIData.encodeEnd(UIData.java:573)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:369)
    at com.icesoft.faces.renderkit.dom_html_basic.GridRenderer.encodeChildren(GridRenderer.java:207)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:357)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:357)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:357)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer.encodeParentAndChildren(DomBasicRenderer.java:364)
    at com.icesoft.faces.renderkit.dom_html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:95)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527)
    at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:490)
    at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:495)
    at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:495)
    at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:495)
    at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:495)
    at com.icesoft.faces.facelets.D2DFaceletViewHandler.renderResponse(D2DFaceletViewHandler.java:281)
    at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:155)
    at com.icesoft.faces.application.ViewHandlerProxy.renderView(ViewHandlerProxy.java:70)
    at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
    at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)
    at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:51)
    at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:171)
    at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:112)
    at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:65)
    at com.icesoft.faces.webapp.http.servlet.BasicAdaptingServlet.service(BasicAdaptingServlet.java:48)
    at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:58)
    at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:55)
    at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:77)
    at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:55)
    at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:192)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:67)
    at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
    at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
    at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
    at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
    at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
    at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
    at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
    at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
    at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
    at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
    at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
    at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

And my TransformationBean

public class TransformationBean{

    private String businessDate;
    private String service;
    private String status;

    // constructor 
    // getter and setters
    }

I researched on this issue and found many responses. But it does look like I am not doing any of those mistakes.. so not sure what I'm missing. These are the other links that I found about the same issue.

Number format exception when returning values from database(JPA)

NumberFormatException for input String

http://jforum.icesoft.org/JForum/posts/list/16645.page

All of these mention that the List<> being returned from the java code is a List of Object[] which is why the its trying to get to the array entry by treating the property as an index attribute.. However , from my code, its clear that I am not returned a List of Object[] , but a properly defined List

I have also tested the java code in a JUNit Test case and verified that the return type is a List of TransformationBean objects.

What am I not doing correctly, folks ?

Could you please tell me what "**TransformationBean**" means? and tell me the parameters of TransformationBean with type. — Ponmalar, Jun 13 '12 at 04:17
TrasformationBean is just my POJO.. Added it to the original post above — prashanth chandran, Jun 13 '12 at 04:18
have you tried to have the list as an attribute of your managed bean and fill it with a method inside the getter? — Luiggi Mendoza, Jun 13 '12 at 04:44
Are you 100% sure `TransformationBean` does not implement `List` interface? Application behaves as if it did. — mrembisz, Jun 13 '12 at 11:10

score 0 · Answer 1 · answered Jun 13 '12 at 23:39

I was able to fix the problem. Not sure what the issue was though. I just created a new file containing my xhtml displaycode with the same set of information. Only thing i changed was to change the var name to bean like so..

    <ice:dataTable id="transformations" var="bean" width="700"
value="#{ShowStatusBean.transformationStatusList}" rows="10"    
partialTriggers="refreshButton"  autoSubmit="true">

<ice:column>
<ice:outputText value="#{bean.businessDate}" />
</ice:column>

<ice:column>
<ice:outputText value="#{bean.service}" />
</ice:column>

<ice:column>
<ice:outputText value="#{bean.status}" />
</ice:column>

</ice:dataTable>`

And it started working.. Doesn't make sense.. Maybe the app server was caching some previous version that was incorrect.. But looks like my code was right all along..

NumberFormatException when using List in datatable

1 Answers1