Expando attributes in JSP thows Exception

[12年前 に Tom Metz によって更新されました。]

Hi,
today I have found a very strange behaviour when adding ExpandoAttributeName and ExpandoAttribute to JSP in a Hook. In the moment, when the attributes are added to the JSP, a NullPointerException comes, when the form is submitted. Unfortunately, the NPE does not come from my code, but from the Liferay code. As a result, I have empty Expando attributes in the ServiceContext in my Service Hook.

Iam developing at SVN trunk from middle September 2011, but I have tried today also the actual 6.1.0 beta 3. The same behaviour. I have found one similar problem in Liferay Jira, but it was in "Custom Fields", not in a Hook, and it has been fixed few weeks ago.

I have expanded edit_file_entry.jsp JSP and DLFileEntryMetadataLocalService class.

Does anyone have an idea, what can be wrong with this construction?

<aui:input name="ExpandoAttributeName--translation--" type="hidden" value="translation" />
<aui:field-wrapper label="translation">
	<aui:input name="ExpandoAttribute--translation--" type="text" />
	</aui:field-wrapper>

The stacktrace:

15:39:14,565 ERROR [ExpandoBridgeImpl:508] java.lang.NullPointerException
java.lang.NullPointerException
	at com.liferay.portlet.expando.service.permission.ExpandoColumnPermissionImpl.contains(ExpandoColumnPermissionImpl.java:67)
	at com.liferay.portlet.expando.service.permission.ExpandoColumnPermissionImpl.check(ExpandoColumnPermissionImpl.java:34)
	at com.liferay.portlet.expando.service.permission.ExpandoColumnPermissionUtil.check(ExpandoColumnPermissionUtil.java:32)
	at com.liferay.portlet.expando.service.impl.ExpandoValueServiceImpl.addValue(ExpandoValueServiceImpl.java:47)
	at com.liferay.portlet.expando.service.impl.ExpandoValueServiceImpl.addValues(ExpandoValueServiceImpl.java:77)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:112)
	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
	at $Proxy145.addValues(Unknown Source)
	at com.liferay.portlet.expando.service.ExpandoValueServiceUtil.addValues(ExpandoValueServiceUtil.java:66)
	at com.liferay.portlet.expando.model.impl.ExpandoBridgeImpl.setAttributes(ExpandoBridgeImpl.java:495)
	at com.liferay.portlet.expando.model.impl.ExpandoBridgeImpl.setAttributes(ExpandoBridgeImpl.java:528)
	at com.liferay.portlet.expando.model.impl.ExpandoBridgeImpl.setAttributes(ExpandoBridgeImpl.java:520)
	at com.liferay.portlet.documentlibrary.model.impl.DLFileVersionModelImpl.setExpandoBridgeAttributes(DLFileVersionModelImpl.java:589)
	at com.liferay.portlet.documentlibrary.service.impl.DLFileEntryLocalServiceImpl.addFileVersion(DLFileEntryLocalServiceImpl.java:1151)
	at com.liferay.portlet.documentlibrary.service.impl.DLFileEntryLocalServiceImpl.addFileEntry(DLFileEntryLocalServiceImpl.java:175)
	at com.liferay.portlet.documentlibrary.service.DLFileEntryLocalServiceWrapper.addFileEntry(DLFileEntryLocalServiceWrapper.java:276)
	at com.arvato.liferay.hook.ExtDLFileEntryLocalService.addFileEntry(ExtDLFileEntryLocalService.java:42)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:54)
	at $Proxy532.addFileEntry(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor1042.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:112)
	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
	at $Proxy189.addFileEntry(Unknown Source)
	at com.liferay.portlet.documentlibrary.service.impl.DLFileEntryServiceImpl.addFileEntry(DLFileEntryServiceImpl.java:59)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:112)
	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
	at $Proxy190.addFileEntry(Unknown Source)
	at com.liferay.portal.repository.liferayrepository.LiferayRepository.addFileEntry(LiferayRepository.java:136)
	at com.liferay.portlet.documentlibrary.service.impl.DLAppServiceImpl.addFileEntry(DLAppServiceImpl.java:273)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:112)
	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
	at $Proxy186.addFileEntry(Unknown Source)
	at com.liferay.portlet.documentlibrary.service.DLAppServiceUtil.addFileEntry(DLAppServiceUtil.java:196)
	at com.liferay.portlet.documentlibrary.action.EditFileEntryAction.updateFileEntry(EditFileEntryAction.java:631)
	at com.liferay.portlet.documentlibrary.action.EditFileEntryAction.processAction(EditFileEntryAction.java:118)
	at com.liferay.portal.struts.PortletRequestProcessor.process(PortletRequestProcessor.java:175)
	at com.liferay.portlet.StrutsPortlet.processAction(StrutsPortlet.java:190)
	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
	at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
	at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:653)
	at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:689)
	at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:361)
	at com.liferay.portal.action.LayoutAction.processPortletRequest(LayoutAction.java:845)
	at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:633)
	at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:244)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:173)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:556)
	at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:533)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:199)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:240)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:68)
	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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
	at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:136)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:302)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:199)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.etag.ETagFilter.processFilter(ETagFilter.java:55)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:240)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:68)
	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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
	at com.liferay.portal.servlet.I18nServlet.service(I18nServlet.java:102)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
	at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:209)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:184)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:164)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:164)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:68)
	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:224)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:185)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:269)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

[12年前 に Abdul Qadir によって更新されました。]

It's related to permission of custom field for "ExpandoAttribute--translation" . You have to give update permission for this field for 'Guest' or 'User'.For this, you have to
Control Panel->Custom Field-> xyz --> ExpandoAttribute--translation.Click on Action Button and set permission of update.

[12年前 に Tom Metz によって更新されました。]

Dear Abdul,
thanks a lot for your advice. Unfortunately, I don't think, this is my case. I didn't add the additional field via "Custom fields", but just programaticaly in a JSP Hook. I was following the instructions in the book "Liferay in Action". In the book, there is nothing about, how to solve issues with perrmisions in the JSP/Service Hook, when using Expando attributes.

[12年前 に Abdul Qadir によって更新されました。]

Expando = Custom Attributes. You have to create custom attribute for document liberary document

[12年前 に Tom Metz によって更新されました。]

Dear Abdul,
I have followed your advice and added the necessary field into the "Custom attributes". The exception disappeared, thanks for this. But the context in the backend is still empty.

I understand it now like this:

• I prepare the custom field in the Control Panel,
• I set up the permissions,
• I mark the field as hidden.
• In my JSP Hook I prepare the Expando Attribute as I need it.

Is that correct?

[12年前 に Tom Metz によって更新されました。]

Conclusion: it works as described in previous post.