[ https://issues.jboss.org/browse/TEIIDDES-2818?page=com.atlassian.jira.plu... ] Matus Makovy commented on TEIIDDES-2818: ---------------------------------------- [~apodhrad], [~blafond] I retested today to be sure on how it works right now. I found out that if you set materialized - true on view table Preview is not gray out and you get exception: {code:java} java.lang.IllegalArgumentException: Expected argument to be non-null but got null at org.teiid.core.designer.util.CoreArgCheck.isNotNull(CoreArgCheck.java:142) at org.teiid.core.designer.util.CoreArgCheck.isNotNull(CoreArgCheck.java:128) at org.teiid.designer.core.workspace.ModelUtil.getModel(ModelUtil.java:251) at org.teiid.designer.runtime.preview.DependentObjectHelper.addMaterializedTables(DependentObjectHelper.java:132) at org.teiid.designer.runtime.preview.DependentObjectHelper.findSourceTables(DependentObjectHelper.java:123) at org.teiid.designer.runtime.preview.DependentObjectHelper.calculateDependentObjects(DependentObjectHelper.java:86) at org.teiid.designer.runtime.preview.DependentObjectHelper.<init>(DependentObjectHelper.java:74) at org.teiid.designer.runtime.preview.PreviewManager.getVdbSourceModelInfos(PreviewManager.java:588) at org.teiid.designer.runtime.preview.PreviewManager.createDynamicVdb(PreviewManager.java:352) at org.teiid.designer.runtime.preview.PreviewManager.generateDynamicVdb(PreviewManager.java:132) at org.teiid.designer.runtime.preview.PreviewManager.getDynamicVdbStatus(PreviewManager.java:107) at org.teiid.designer.runtime.ui.preview.PreviewDataWorker.internalRun(PreviewDataWorker.java:327) at org.teiid.designer.runtime.ui.preview.PreviewDataWorker.run(PreviewDataWorker.java:209) at org.teiid.designer.runtime.ui.preview.PreviewTableDataContextAction.run(PreviewTableDataContextAction.java:99) at org.eclipse.jface.action.Action.runWithEvent(Action.java:473) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1299) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3698) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) {code} -- This message was sent by Atlassian JIRA (v7.2.3#72005)