[jboss-user] [JBoss Seam] - selectOneMenu - NullPointerException
siobhan.ernest
do-not-reply at jboss.com
Mon Nov 12 18:55:46 EST 2007
Hello -
I am trying to implement a dropdown on a form and getting a NullPointerException during the render phase:
xhtml snippet:
| <h:selectOneMenu id="selectedUploadDefinition" value="#{uploadService.selectedUploadDefinition}">
| <s:selectItems
| value="#{uploadDefinitions}"
| var="ud"
| label="#{ud.name}"
| noSelectionLabel="Please Select..."/>
| <s:convertEntity/>
| </h:selectOneMenu>
|
action snippet:
| @Stateful
| @Name("uploadService")
| @Scope(ScopeType.EVENT)
| @Restrict("#{identity.loggedIn}")
| public class UploadAction implements Upload {
|
| @Logger
| Log log;
|
| @PersistenceContext
| private EntityManager em;
|
| private byte[] data;
| private String contentType;
| private String fileName;
| private int size;
|
| @Out(required = false)
| private List<UploadDefinition> uploadDefinitions;
|
| private UploadDefinition selectedUploadDefinition ;
|
|
| @Factory("uploadDefinitions")
| public void loadUploadDefinitions() {
| log.info("UPLOAD SERVICE: loading uploadDefinitions for upload action");
| uploadDefinitions = em.createQuery(
| "select ud from UploadDefinition ud order by ud.name")
| .getResultList();
| log.info("RESULT SIZE: " + uploadDefinitions.size());
| }
|
| public List<UploadDefinition> getUploadDefinitions() {
| return uploadDefinitions;
| }
entity :
@Entity
| public class UploadDefinition implements Serializable {
| private long uoid;
| private String name ;
| private String headers ;
| private List<ImportField> importFields ;
|
| public UploadDefinition() {
| }
|
| public UploadDefinition(String name, String headers) {
| this.name = name;
| this.headers = headers;
| }
|
| public UploadDefinition(long uoid, String name, String headers) {
| this.uoid = uoid;
| this.name = name;
| this.headers = headers ;
| }
|
| @Id @GeneratedValue
| public long getUoid() {
| return uoid;
| }
|
| public void setUoid(long uoid) {
| this.uoid = uoid;
| }
|
| @Column(name = "name", unique = true)
| public String getName() {
| return name;
| }
|
| public void setName(String name) {
| this.name = name;
| }
|
| @Length(max=512)
| public String getHeaders() {
| return headers;
| }
|
| public void setHeaders(String headers) {
| this.headers = headers;
| }
|
| @OneToMany(mappedBy = "uploadDefinition", fetch=FetchType.EAGER)
| @OrderBy("value")
| public List<ImportField> getImportFields() {
| return importFields;
| }
|
| public void setImportFields(List<ImportField> importFields) {
| this.importFields = importFields;
| }
| }
stacktrace:
java.lang.NullPointerException
| at org.jboss.seam.ui.converter.EntityConverterStore.getEntityManager(EntityConverterStore.java:81)
| at org.jboss.seam.ui.converter.EntityConverterStore.put(EntityConverterStore.java:60)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
| at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
| at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:38)
| at org.jboss.seam.util.Work.workInTransaction(Work.java:40)
| at org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:32)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155)
| at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
| at org.jboss.seam.ui.converter.EntityConverterStore_$$_javassist_2.put(EntityConverterStore_$$_javassist_2.java)
| at org.jboss.seam.ui.converter.EntityConverter.getAsString(EntityConverter.java:67)
| at org.jboss.seam.ui.converter.PrioritizableConverter.getAsString(PrioritizableConverter.java:67)
| at org.jboss.seam.ui.converter.ConverterChain.getAsString(ConverterChain.java:123)
| at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getFormattedValue(HtmlBasicRenderer.java:469)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOption(MenuRenderer.java:502)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:757)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:811)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:335)
| at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
| at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java:190)
| at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.java:166)
| at org.jboss.seam.ui.renderkit.ValidateAllRendererBase.doEncodeChildren(ValidateAllRendererBase.java:33)
| at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.java:92)
| at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
| at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
| at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
| at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
| at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
| at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
| at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
| 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:106)
| at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
| at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
| 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.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
| at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
| at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
| at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
| at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
| at java.lang.Thread.run(Thread.java:619)
Using Seam 2.0.0GA and JBoss 4.2.2GA
Any ideas what I am doing wrong?
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