"Cannot set null table model"

How do I get rid of the pop-up error msg when
clicking on an EJB (in the System Window of
a writable Project file):
"Cannot set null table model"

This error usually occurs when a compilation error is blocking creation of a valid EJB model, the data object that supports the EJB class editor.
Try re-compiling the project to see if that identifies the problem.

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    Response Cardinality : 0..1
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    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.composite.ContextPoppingUINode$ContextPoppingRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.laf.swan.desktop.HeaderRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.oracle.desktop.HeaderRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.swan.desktop.HeaderRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.BorderLayoutRenderer.renderIndexedChildren(Unknown Source)
    at oracle.cabo.ui.laf.swan.desktop.ContentRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.composite.UINodeRenderer.renderWithNode(Unknown Source)
    at oracle.cabo.ui.composite.UINodeRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.oracle.desktop.PageLayoutRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.BodyRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.apps.fnd.framework.webui.beans.OABodyBean.render(OABodyBean.java:403)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.DocumentRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.DocumentRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.partial.PartialPageUtils.renderPartialPage(Unknown Source)
    at oracle.apps.fnd.framework.webui.OAPageBean.render(OAPageBean.java:3591)
    at oracle.apps.fnd.framework.webui.OAPageBean.renderDocument(OAPageBean.java:3237)
    at oracle.apps.fnd.framework.webui.OAPageBean.renderDocument(OAPageBean.java:3042)
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    at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
    at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
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    at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:259)
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    at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
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    at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
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    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.composite.ContextPoppingUINode$ContextPoppingRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.laf.swan.desktop.HeaderRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.oracle.desktop.HeaderRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.swan.desktop.HeaderRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.BorderLayoutRenderer.renderIndexedChildren(Unknown Source)
    at oracle.cabo.ui.laf.swan.desktop.ContentRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.composite.UINodeRenderer.renderWithNode(Unknown Source)
    at oracle.cabo.ui.composite.UINodeRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.oracle.desktop.PageLayoutRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.BodyRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.apps.fnd.framework.webui.beans.OABodyBean.render(OABodyBean.java:403)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.DocumentRenderer.renderContent(Unknown Source)
    at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
    at oracle.cabo.ui.laf.base.xhtml.DocumentRenderer.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.BaseUINode.render(Unknown Source)
    at oracle.cabo.ui.partial.PartialPageUtils.renderPartialPage(Unknown Source)
    at oracle.apps.fnd.framework.webui.OAPageBean.render(OAPageBean.java:3591)
    at oracle.apps.fnd.framework.webui.OAPageBean.renderDocument(OAPageBean.java:3237)
    at oracle.apps.fnd.framework.webui.OAPageBean.renderDocument(OAPageBean.java:3042)
    at OA.jspService(_OA.java:228)
    at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
    at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)
    at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
    at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
    at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)
    at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
    at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:259)
    at com.evermind.server.http.ServletRequestDispatcher.access$100(ServletRequestDispatcher.java:51)
    at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:193)
    at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:284)
    at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:198)
    at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:395)
    at OA.jspService(_OA.java:221)
    at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
    at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)
    at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
    at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
    at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
    at oracle.apps.jtf.base.session.ReleaseResFilter.doFilter(ReleaseResFilter.java:26)
    at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)
    at oracle.apps.fnd.security.AppsServletFilter.doFilter(AppsServletFilter.java:318)
    at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:621)
    at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
    at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
    at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:313)
    at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:199)
    at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
    at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    at java.lang.Thread.run(Thread.java:619)
    Logout

    Hi;
    I suggest close your issue here as answered than move your issue Forum Home » Database » Workflow which is Workflow dedicated forum site.
    Regard
    Helios

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