基本素面扩展动态形式中的Stackoverflow错误

当尝试使用基本的primefaces扩展示例时，当启动页面时出现以下错误，

环境细节:

wildfly 8.0
primefaces - 5.2
Primefaces-extension-3.1.0
commons-lang-3.3.1
gson - 2.3
mojarra-2.2.8

错误:

2015-05-25 14:51:59,224 FATAL [javax.enterprise.resource.webcontainer.jsf.context] (default task-2) JSF1073: java.lang.StackOverflowError caught during processing of RENDER_RESPONSE 6 : UIComponent-ClientId=, Message=null
2015-05-25 14:51:59,236 FATAL [javax.enterprise.resource.webcontainer.jsf.context] (default task-2) No associated message: java.lang.StackOverflowError
    at java.util.concurrent.atomic.AtomicReferenceArray.get(AtomicReferenceArray.java:125) [rt.jar:1.8.0_20]
    at com.google.common.cache.LocalCache$Segment.getFirst(LocalCache.java:2688)
    at com.google.common.cache.LocalCache$Segment.getEntry(LocalCache.java:2695)
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2176)
    at com.google.common.cache.LocalCache.get(LocalCache.java:3932)
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3936)
    at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4806)
    at org.jboss.weld.util.cache.LoadingCacheUtils.getCacheValue(LoadingCacheUtils.java:52) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at org.jboss.weld.resolution.NameBasedResolver.resolve(NameBasedResolver.java:92) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at org.jboss.weld.manager.BeanManagerImpl.getBeans(BeanManagerImpl.java:826) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at org.jboss.weld.el.AbstractWeldELResolver.lookup(AbstractWeldELResolver.java:102) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at org.jboss.weld.el.AbstractWeldELResolver.getValue(AbstractWeldELResolver.java:91) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at org.jboss.as.jsf.injection.weld.ForwardingELResolver.getValue(ForwardingELResolver.java:46) [wildfly-jsf-injection-8.0.0.CR1.jar:8.0.0.CR1]
    at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:188) [javax.el-3.0-b07.jar:3.0-b07]
    at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176) [jsf-impl-2.2.8.jar:2.2.8]
    at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203) [jsf-impl-2.2.8.jar:2.2.8]
    at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:116) [javax.el-3.0-b07.jar:3.0-b07]
    at com.sun.el.parser.AstValue.getBase(AstValue.java:151) [javax.el-3.0-b07.jar:3.0-b07]
    at com.sun.el.parser.AstValue.getValue(AstValue.java:200) [javax.el-3.0-b07.jar:3.0-b07]
    at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226) [javax.el-3.0-b07.jar:3.0-b07]
    at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
    at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109) [jsf-impl-2.2.8.jar:2.2.8]
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194) [jsf-api-2.2.8.jar:2.2]
    at org.primefaces.extensions.component.base.AbstractDynamicData.getValue(AbstractDynamicData.java:110) [primefaces-extensions-3.1.0.jar:3.1.0]
    at org.primefaces.extensions.component.dynaform.DynaForm.invokeOnChildren(DynaForm.java:243) [primefaces-extensions-3.1.0.jar:3.1.0]
    at org.primefaces.extensions.component.base.AbstractDynamicData.invokeOnComponent(AbstractDynamicData.java:437) [primefaces-extensions-3.1.0.jar:3.1.0]
    at org.primefaces.extensions.component.dynaform.DynaForm.invokeOnChildren(DynaForm.java:256) [primefaces-extensions-3.1.0.jar:3.1.0]
    at org.primefaces.extensions.component.base.AbstractDynamicData.invokeOnComponent(AbstractDynamicData.java:437) [primefaces-extensions-3.1.0.jar:3.1.0]

XHTML

<html xmlns="http://www.w3.org/1999/xhtml"
  xmlns:f="http://xmlns.jcp.org/jsf/core"
  xmlns:h="http://xmlns.jcp.org/jsf/html"      
  xmlns:p="http://primefaces.org/ui"
  xmlns:ui="http://java.sun.com/jsf/facelets"
  xmlns:pe="http://primefaces.org/ui/extensions"
  >
<h:head>
    <title>Facelet Title</title>
</h:head>
<h:body>
    <h:form prependId="false">
        <h:panelGroup id="dynaFormGroup">  
            <p:messages id="messages" showSummary="true"/>  
            <pe:dynaForm id="dynaForm" value="#{dynaFormController.model}" var="data">  
                <pe:dynaFormControl type="input" for="txt">  
                    <p:inputText id="txt" value="#{data.value}" required="#{data.required}"/>  
                </pe:dynaFormControl>  
                <pe:dynaFormControl type="calendar" for="cal" styleClass="calendar">  
                    <p:calendar id="cal" value="#{data.value}" required="#{data.required}" showOn="button"/>  
                </pe:dynaFormControl>  
                <pe:dynaFormControl type="select" for="sel" styleClass="select">  
                    <p:selectOneMenu id="sel" value="#{data.value}" required="#{data.required}">  
                        <f:selectItems value="#{dynaFormController.languages}"/>  
                    </p:selectOneMenu>  
                </pe:dynaFormControl>  
                <pe:dynaFormControl type="textarea" for="tarea">  
                    <p:inputTextarea id="tarea" value="#{data.value}" required="#{data.required}" autoResize="false"/>  
                </pe:dynaFormControl>  
                <pe:dynaFormControl type="rating" for="rat">  
                    <p:rating id="rat" value="#{data.value}" required="#{data.required}"/>  
                </pe:dynaFormControl>  
                <f:facet name="buttonBar">  
                    <p:commandButton value="Submit" action="#{dynaFormController.submitForm}"  
                                     process="dynaForm" update=":mainForm:dynaFormGroup :mainForm:inputValues"  
                                     oncomplete="handleComplete(xhr, status, args)"/>  
                    <p:commandButton type="reset" value="Reset" style="margin-left: 5px;"/>  
                </f:facet>  
            </pe:dynaForm>  
        </h:panelGroup>  
        <p:dialog header="Input values" widgetVar="inputValuesWidget">  
            <p:dataList id="inputValues" value="#{dynaFormController.bookProperties}" var="bookProperty"  
                        style="margin:10px;">  
                <h:outputText value="#{bookProperty.name}: #{bookProperty.formattedValue}"  
                              style="margin-right: 10px;"/>  
            </p:dataList>  
        </p:dialog>  
        <h:outputScript id="dynaFormScript" target="body">  
            /* <![CDATA[ */ 
            function handleComplete(xhr, status, args) { 
            if(args && args.isValid) { 
            PF('inputValuesWidget').show(); 
            } else { 
            PF('inputValuesWidget').hide(); 
            } 
            } 
            /* ]]> */  
        </h:outputScript>  
        <h:outputStylesheet id="dynaFormCSS">  
            /* note: trick with colspan is needed for IE8 */  
            .pe-dynaform-cell input,  
            .pe-dynaform-cell textarea,  
            .pe-dynaform-cell[colspan="1"] input,  
            .pe-dynaform-cell[colspan="1"] textarea {  
            width: 150px;  
            }  
            /* note: trick with colspan is needed for IE8 */  
            .pe-dynaform-cell.calendar input,  
            .pe-dynaform-cell[colspan="1"].calendar input {  
            width: 120px;  
            }  
            .pe-dynaform-cell.select .ui-selectonemenu {  
            width: 157px !important;  
            }  
            .pe-dynaform-cell.select .ui-selectonemenu .ui-selectonemenu-label {  
            width: 130px !important;  
            }  
        </h:outputStylesheet> 
    </h:form>
</h:body>

DynaFormController:

@Named
@ViewScoped
public class DynaFormController implements Serializable {  
private static final long serialVersionUID = 20120423L;  
private DynaFormModel model;  
private static List<SelectItem> LANGUAGES = new ArrayList<SelectItem>();  
@PostConstruct  
protected void initialize() {  
    model = new DynaFormModel();  
    // add rows, labels and editable controls  
    // set relationship between label and editable controls to support outputLabel with "for" attribute  
    // 1. row  
    DynaFormRow row = model.createRegularRow();  
    DynaFormLabel label11 = row.addLabel("Author");  
    DynaFormControl control12 = row.addControl(new BookProperty("Author", true), "input");  
    label11.setForControl(control12);  
    DynaFormLabel label13 = row.addLabel("ISBN");  
    DynaFormControl control14 = row.addControl(new BookProperty("ISBN", true), "input");  
    label13.setForControl(control14);  
    // 2. row  
    row = model.createRegularRow();  
    DynaFormLabel label21 = row.addLabel("Title");  
    DynaFormControl control22 = row.addControl(new BookProperty("Title", false), "input", 3, 1);  
    label21.setForControl(control22);  
    // 3. row  
    row = model.createRegularRow();  
    DynaFormLabel label31 = row.addLabel("Publisher");  
    DynaFormControl control32 = row.addControl(new BookProperty("Publisher", false), "input");  
    label31.setForControl(control32);  
    DynaFormLabel label33 = row.addLabel("Published on");  
    DynaFormControl control34 = row.addControl(new BookProperty("Published on", false), "calendar");  
    label33.setForControl(control34);  
    // 4. row  
    row = model.createRegularRow();  
    DynaFormLabel label41 = row.addLabel("Language");  
    DynaFormControl control42 = row.addControl(new BookProperty("Language", false), "select");  
    label41.setForControl(control42);  
    DynaFormLabel label43 = row.addLabel("Description", 1, 2);  
    DynaFormControl control44 = row.addControl(new BookProperty("Description", false), "textarea", 1, 2);  
    label43.setForControl(control44);  
    // 5. row  
    row = model.createRegularRow();  
    DynaFormLabel label51 = row.addLabel("Rating");  
    DynaFormControl control52 = row.addControl(new BookProperty("Rating", 3, true), "rating");  
    label51.setForControl(control52);  
}  
public DynaFormModel getModel() {  
    return model;  
}  
public List<BookProperty> getBookProperties() {  
    if (model == null) {  
        return null;  
    }  
    List<BookProperty> bookProperties = new ArrayList<BookProperty>();  
    for (DynaFormControl dynaFormControl : model.getControls()) {  
        bookProperties.add((BookProperty) dynaFormControl.getData());  
    }  
    return bookProperties;  
}  
public String submitForm() {  
    FacesMessage.Severity sev = FacesContext.getCurrentInstance().getMaximumSeverity();  
    boolean hasErrors = (sev != null && (FacesMessage.SEVERITY_ERROR.compareTo(sev) >= 0)); 
    RequestContext requestContext = RequestContext.getCurrentInstance();  
    requestContext.addCallbackParam("isValid", !hasErrors);  
    return null;  
}  
public List<SelectItem> getLanguages() {  
    if (LANGUAGES.isEmpty()) {  
        LANGUAGES.add(new SelectItem("en", "English"));  
        LANGUAGES.add(new SelectItem("de", "German"));  
        LANGUAGES.add(new SelectItem("ru", "Russian"));  
        LANGUAGES.add(new SelectItem("tr", "Turkish"));  
    }  
    return LANGUAGES;  
}  
}

BookProperty:

public class BookProperty implements Serializable {  
private static final long serialVersionUID = 20120521L;  
private String name;  
private Object value;  
private boolean required;  
public BookProperty(String name, boolean required) {  
    this.name = name;  
    this.required = required;  
}  
public BookProperty(String name, Object value, boolean required) {  
    this.name = name;  
    this.value = value;  
    this.required = required;  
}  
public String getName() {  
    return name;  
}  
public void setName(String name) {  
    this.name = name;  
}  
public Object getValue() {  
    return value;  
}  
public Object getFormattedValue() {  
    if (value instanceof Date) {  
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("d MMM yyyy");  
        return simpleDateFormat.format(value);  
    }  
    return value;  
}  
public void setValue(Object value) {  
    this.value = value;  
}  
public boolean isRequired() {  
    return required;  
}  
public void setRequired(boolean required) {  
    this.required = required;  
}  
}

我有同样的问题，并通过添加id属性到表单标签来修复它:

<h:form id="mainForm" prependId="false">
  <h:panelGroup id="dynaFormGroup">

---- EDIT -----

当您查看发布的代码时，可以看到命令按钮具有update属性中组件的完全限定id:mainForm:dynaFormGroup

<p:commandButton value="Submit" action="#{dynaFormController.submitForm}"
  process="dynaForm" update=":mainForm:dynaFormGroup :mainForm:inputValues"
  oncomplete="handleComplete(xhr, status, args)"/>

这就是为什么表单应该有id="mainform"

另一方面，为什么当id缺失时，会导致java.lang。StackOverflowError，是我仍然不知道的东西。如果我找到原因，我会更新

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