topic Obscure error message with own JSP page in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/obscure-error-message-with-own-jsp-page/m-p/185942#M139072 <HTML><HEAD></HEAD><BODY><SPAN>Hello</SPAN><BR /><BR /><SPAN>again with a problem, I do not understand. Not a good day today I guess <span class="lia-unicode-emoji" title=":slightly_smiling_face:">πŸ™‚</span></SPAN><BR /><BR /><SPAN>First I try to explain my szenario again:</SPAN><BR /><SPAN>1. Wrote an own JSP Page, which only outputs the name property of a nodeID along with the content of a certain node</SPAN><BR /><SPAN>2. put it under the /jsp/ directory (which means you have to login anyway to access, if I got the navigation cases right)</SPAN><BR /><BR /><SPAN>Now when I access the JSP page and only output the name property, everything runs fine. If I add the part where I output the content of a node, I get the following error</SPAN><BR /><BR /><SPAN>This is basically my JSP</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE><BR />&lt;f:view&gt;<BR /><BR />&lt;h:outputText value="#{EditMediaDetailBean.name}" /&gt;<BR /><BR />and<BR /><BR />&lt;h:outputText value="#{EditMediaDetailBean.defaultLanguage}" /&gt;<BR /><BR />&lt;/f:view&gt;<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>If&nbsp; I comment out the last line it works, otherwise this is my error message:</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE><BR />javax.faces.FacesException: Could not retrieve value of component with path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /jsp/comnos/editMediaDetail.jsp][Class: javax.faces.component.html.HtmlOutputText,Id: _idJsp1]}<BR />caused by:<BR />org.apache.jasper.JasperException: Could not retrieve value of component with path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /jsp/comnos/editMediaDetail.jsp][Class: javax.faces.component.html.HtmlOutputText,Id: _idJsp1]}<BR />caused by:<BR />javax.faces.FacesException: Could not retrieve value of component with path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /jsp/comnos/editMediaDetail.jsp][Class: javax.faces.component.html.HtmlOutputText,Id: _idJsp1]}<BR />caused by:<BR />javax.faces.el.EvaluationException: Cannot get value for expression '#{EditMediaDetailBean.defaultLanguage}'<BR />caused by:<BR />javax.faces.el.EvaluationException: Exception getting value of property defaultLanguage of base of type : com.comnos.alfresco.web.bean.EditMediaDetailBean<BR />caused by:<BR />javax.faces.el.EvaluationException: Bean: com.comnos.alfresco.web.bean.EditMediaDetailBean, property: defaultLanguage<BR />caused by:<BR />java.lang.reflect.InvocationTargetException<BR />caused by:<BR />org.alfresco.error.AlfrescoRuntimeException: Transaction must be active and synchronization is required: Thread[http-8080-Processor22,5,main]<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>The relevant code, which causes this exception is the following (nothing special)</SPAN><BR /><PRE class="language-none line-numbers"><CODE>ContentReader reader = contentService.getReader(nodeRef, ContentModel.PROP_CONTENT)<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>This all leaves me with the conclusion, that I have missed something far before the transaction based code. However I have no idea right now, what it might be:</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE><BR />&nbsp;&nbsp; &lt;managed-bean&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;description&gt;Bean that manages media detail GUI&lt;/description&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;managed-bean-name&gt;EditMediaDetailBean&lt;/managed-bean-name&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;managed-bean-class&gt;com.comnos.alfresco.web.bean.EditMediaDetailBean&lt;/managed-bean-class&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;!– &lt;managed-bean-scope&gt;request&lt;/managed-bean-scope&gt; –&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;managed-bean-scope&gt;session&lt;/managed-bean-scope&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;managed-property&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&lt;property-name&gt;sessionBean&lt;/property-name&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&lt;value&gt;#{SessionBean}&lt;/value&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/managed-property&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/managed-bean&gt;<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>My SessionBean included some services like nodeService, searchService, permissionService, versionService, contentService, copyService, authenticationService, transactionService - but mostly to test if they were missing, I only need five of them actually.</SPAN><BR /><BR /><SPAN>So anyone has an idea what I've not looked consciously enough at?</SPAN><BR /><BR /><BR /><SPAN>Regards, Alexander</SPAN></BODY></HTML> Thu, 20 Nov 2008 18:06:34 GMT alr 2008-11-20T18:06:34Z Obscure error message with own JSP page https://connect.hyland.com/t5/alfresco-archive/obscure-error-message-with-own-jsp-page/m-p/185942#M139072 Helloagain with a problem, I do not understand. Not a good day today I guess :-)First I try to explain my szenario again:1. Wrote an own JSP Page, which only outputs the name property of a nodeID along with the content of a certain node2. put it under the /jsp/ directory (which means you have to log Thu, 20 Nov 2008 18:06:34 GMT https://connect.hyland.com/t5/alfresco-archive/obscure-error-message-with-own-jsp-page/m-p/185942#M139072 alr 2008-11-20T18:06:34Z Re: Obscure error message with own JSP page https://connect.hyland.com/t5/alfresco-archive/obscure-error-message-with-own-jsp-page/m-p/185943#M139073 <HTML><HEAD></HEAD><BODY><SPAN>Hi all,</SPAN><BR /><BR /><SPAN>just for the record: The solution is pretty simple.</SPAN><BR /><BR /><SPAN>In order to be transactional safe, I just needed to define the complete ServiceRegistry instead of only a single NodeService in my SessionBean as a managed-property (in the faces configuration). After that, everything worked smooth.</SPAN><BR /><BR /><SPAN>BTW: Why is there a possibility to get a readOnly UserTransaction out of the TransactionService? When does that make sense?</SPAN><BR /><BR /><BR /><SPAN>–Alexander</SPAN></BODY></HTML> Thu, 27 Nov 2008 17:06:42 GMT https://connect.hyland.com/t5/alfresco-archive/obscure-error-message-with-own-jsp-page/m-p/185943#M139073 alr 2008-11-27T17:06:42Z