[solved] how to disable widgets outline in Design view?

[peterblazejewicz]

hi all,

maybe someone does know how to disable tiny outlines generated by default in GWTD Design view editor for every component?
I've this:

outlines around widgets in design view

designViewWithOutline.png (67.88 KiB) Viewed 747 times

while the same composition viewed with GWTD "preview" feature window looks that way:


regards,
Peter

[Konstantin.Scheglov]

In new build of GWT Designer you will able to use preference page to control Panel's highlighting.

[peterblazejewicz]

hi Konstantin,

that's working after today update,
I've got various errors after disabling/enabling that option now (e..g after radrawing canvas in design view) however they seem to disapear once I cleared cache and run eclipse with -clean argument,

regards,
Peter

[Eric Clayberg]

What kinds of errors? I tried it and didn't see any problems. Are you sure the errors were related to this?

[peterblazejewicz]

hi Eric,

errors just started after I've disabled that option in settings:

eclipse.buildId=I20080207-1530
java.version=1.5.0_13
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86, WS=carbon, NL=en_US
Framework arguments: -keyring /Users/kacper/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws carbon -arch x86 -keyring /Users/kacper/.eclipse_keyring -consoleLog -showlocation


Error
Fri Mar 21 21:19:57 CET 2008
Designer [6.6.0.200803211001]: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
Product: GWT Designer Evaluation
Version: 4.0.0.200803211027
Expected: Eclipse 3.3
Actual: Eclipse 3.4.0.v20080201
Actual Eclipse Build Name:
Actual Eclipse Build ID: I20080207-1530
IDE Actual Name: Eclipse
IDE Actual Version: 3.3.100.I20080204-0800
IDE Actual NL: en_US
Activation Key: GWTDesignerEval-NK0SH-GM0BV-5BCGK
Physical Address: 00-1D-4F-F8-0E-86, HardwareAddress[00-1D-4F-FF-FE-65-40-AA], HardwareAddress[00-1B-63-AD-E5-AF]
Code Gen: Flat Mode, Use Existing, First Assignment, Make Final
Events: Anonymous Class
GWT Home: /Users/kacper/gwt-mac-1.4.61
Platform Product: Eclipse
Platform Version: 3.3.100.I20080204-0800
OS Name: Mac OS X
OS Architecture: i386
OS Version: 10.5.2

org.apache.commons.lang.exception.NestableError: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:56)
at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5605)
at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5586)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.handleRootNodeSelected(DesignerEditorPropertyComposite.java:665)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.updatePropertyComposite(DesignerEditorPropertyComposite.java:872)
at com.swtdesigner.gef.DesignerEditor.parseCompilationUnit(DesignerEditor.java:1205)
at com.swtdesigner.gef.DesignerEditor.refreshDesignView(DesignerEditor.java:1261)
at com.swtdesigner.gef.DesignerEditor$14.widgetSelected(DesignerEditor.java:987)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:227)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1553)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1577)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1562)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1353)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3409)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3007)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2392)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2356)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2222)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:474)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:469)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:362)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
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:585)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:564)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1251)
Caused by: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
at com.swtdesigner.gwt.model.widgets.panel.TopLevelUtils.createShot(TopLevelUtils.java:116)
at com.swtdesigner.gwt.model.widgets.panel.RootPanelInfo.createGUIShot(RootPanelInfo.java:76)
at com.swtdesigner.model.JavaInfo$18.execute(JavaInfo.java:5615)
at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:54)
... 35 more
Caused by: java.lang.reflect.InvocationTargetException
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:585)
at com.swtdesigner.gwt.model.widgets.support.GWTState.callIntMethod(GWTState.java:720)
at com.swtdesigner.gwt.model.widgets.support.GWTState.call_DOM_getAbsoluteLeft(GWTState.java:780)
at com.swtdesigner.gwt.model.widgets.support.GWTState.getAbsoluteLeft(GWTState.java:1521)
at com.swtdesigner.gwt.support.browser.saf.GWTStateSaf.fetchAbsoluteBounds(GWTStateSaf.java:90)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.fetchElementAbsoluteBounds(UIObjectInfo.java:523)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.fetchObjectAbsoluteBounds(UIObjectInfo.java:517)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.fetchAbsoluteBounds(UIObjectInfo.java:511)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createShot(UIObjectInfo.java:473)
at com.swtdesigner.gwt.model.widgets.panel.AbstractContainerInfo.createShot(AbstractContainerInfo.java:248)
at com.swtdesigner.gwt.model.widgets.panel.AbstractContainerInfo.createShot(AbstractContainerInfo.java:252)
at com.swtdesigner.gwt.model.widgets.panel.TopLevelUtils.createShot(TopLevelUtils.java:113)
... 38 more
Caused by: java.lang.NullPointerException
at com.swtdesigner.gwt.support.host.ModuleSpace.invokeNativeInt(ModuleSpace.java:90)
at com.swtdesigner.gwt.support.host.JavaScriptHost.invokeNativeInt(JavaScriptHost.java:64)
at com.google.gwt.user.client.impl.DOMImplSafari.getAbsoluteLeft(DOMImplSafari.java)
at com.google.gwt.user.client.DOM.getAbsoluteLeft(DOM.java:615)
... 53 more

eclipse.buildId=I20080207-1530
java.version=1.5.0_13
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86, WS=carbon, NL=en_US
Framework arguments: -keyring /Users/kacper/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws carbon -arch x86 -keyring /Users/kacper/.eclipse_keyring -consoleLog -showlocation


Error
Fri Mar 21 21:20:43 CET 2008
JSNI method '@com.google.gwt.user.client.impl.DOMImplStandard::init()' returned a value of type NSNull; should not have returned a value

eclipse.buildId=I20080207-1530
java.version=1.5.0_13
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86, WS=carbon, NL=en_US
Framework arguments: -keyring /Users/kacper/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws carbon -arch x86 -keyring /Users/kacper/.eclipse_keyring -consoleLog -showlocation


Error
Fri Mar 21 21:20:43 CET 2008
Designer [6.6.0.200803211001]: org.apache.commons.lang.exception.NestableError: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
Product: GWT Designer Evaluation
Version: 4.0.0.200803211027
Expected: Eclipse 3.3
Actual: Eclipse 3.4.0.v20080201
Actual Eclipse Build Name:
Actual Eclipse Build ID: I20080207-1530
IDE Actual Name: Eclipse
IDE Actual Version: 3.3.100.I20080204-0800
IDE Actual NL: en_US
Activation Key: GWTDesignerEval-NK0SH-GM0BV-5BCGK
Physical Address: 00-1D-4F-F8-0E-86, HardwareAddress[00-1D-4F-FF-FE-65-40-AA], HardwareAddress[00-1B-63-AD-E5-AF]
Code Gen: Flat Mode, Use Existing, First Assignment, Make Final
Events: Anonymous Class
GWT Home: /Users/kacper/gwt-mac-1.4.61
Platform Product: Eclipse
Platform Version: 3.3.100.I20080204-0800
OS Name: Mac OS X
OS Architecture: i386
OS Version: 10.5.2

org.apache.commons.lang.exception.NestableError: org.apache.commons.lang.exception.NestableError: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
at com.swtdesigner.model.parser.JavaInfoParser$ParserVisitor.isComponentCreation(JavaInfoParser.java:3781)
at com.swtdesigner.model.parser.JavaInfoParser$ParserVisitor.endVisit(JavaInfoParser.java:1887)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:246)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2525)
at org.eclipse.jdt.core.dom.VariableDeclarationFragment.accept0(VariableDeclarationFragment.java:224)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2548)
at org.eclipse.jdt.core.dom.VariableDeclarationStatement.accept0(VariableDeclarationStatement.java:272)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2548)
at org.eclipse.jdt.core.dom.Block.accept0(Block.java:135)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2525)
at org.eclipse.jdt.core.dom.MethodDeclaration.accept0(MethodDeclaration.java:501)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at com.swtdesigner.model.parser.JavaInfoParser$ParserVisitor.visit(JavaInfoParser.java:3007)
at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:466)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2548)
at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:213)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2478)
at com.swtdesigner.model.parser.JavaInfoParser.parse(JavaInfoParser.java:320)
at com.swtdesigner.gef.DesignerEditor.parseCompilationUnit(DesignerEditor.java:1175)
at com.swtdesigner.gef.DesignerEditor$17.execute(DesignerEditor.java:1103)
at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:54)
at com.swtdesigner.gef.DesignerEditor.handleActivate(DesignerEditor.java:1097)
at com.swtdesigner.gef.DesignerEditor.handleActivate(DesignerEditor.java:1088)
at com.swtdesigner.editors.MultiPageEditor.showDesignEditor(MultiPageEditor.java:409)
at com.swtdesigner.editors.MultiPageEditor.switchSourceDesign(MultiPageEditor.java:467)
at com.swtdesigner.actions.editor.SwitchAction.run(SwitchAction.java:12)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:582)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:499)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:451)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1553)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1577)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1562)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1353)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3409)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3007)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2392)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2356)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2222)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:474)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:469)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:362)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:564)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1251)
Caused by: org.apache.commons.lang.exception.NestableError: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
at com.swtdesigner.model.parser.factory.JavaInfoFactory.create(JavaInfoFactory.java:119)
at com.swtdesigner.model.parser.factory.JavaInfoFactory.create(JavaInfoFactory.java:96)
at com.swtdesigner.model.parser.factory.JavaInfoFactory.create(JavaInfoFactory.java:89)
at com.swtdesigner.model.parser.JavaInfoParser$ParserVisitor.isComponentCreation(JavaInfoParser.java:3770)
... 61 more
Caused by: com.swtdesigner.properties.PropertyException: java.lang.reflect.InvocationTargetException
at com.swtdesigner.gwt.model.GWTJavaInfoFactory.create(GWTJavaInfoFactory.java:171)
at com.swtdesigner.model.parser.factory.JavaInfoFactory.create(JavaInfoFactory.java:113)
... 64 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at com.swtdesigner.gwt.model.GWTJavaInfoFactory.create(GWTJavaInfoFactory.java:163)
... 65 more
Caused by: org.apache.commons.lang.exception.NestableError: org.apache.commons.lang.exception.NestableError: org.apache.commons.lang.exception.NestableError: java.lang.NullPointerException
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.classByName(UIObjectInfo.java:187)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.<init>(UIObjectInfo.java:67)
at com.swtdesigner.gwt.model.widgets.WidgetInfo.<init>(WidgetInfo.java:52)
at com.swtdesigner.gwt.model.widgets.panel.AbstractContainerInfo.<init>(AbstractContainerInfo.java:37)
at com.swtdesigner.gwt.model.widgets.panel.PanelInfo.<init>(PanelInfo.java:25)
at com.swtdesigner.gwt.model.widgets.panel.ComplexPanelInfo.<init>(ComplexPanelInfo.java:26)
at com.swtdesigner.gwt.model.widgets.panel.AbsolutePanelInfo.<init>(AbsolutePanelInfo.java:36)
at com.swtdesigner.gwt.model.widgets.panel.RootPanelInfo.<init>(RootPanelInfo.java:23)
... 70 more
Caused by: org.apache.commons.lang.exception.NestableError: org.apache.commons.lang.exception.NestableError: java.lang.NullPointerException
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.getState(UIObjectInfo.java:401)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.classByName(UIObjectInfo.java:185)
... 77 more
Caused by: org.apache.commons.lang.exception.NestableError: java.lang.NullPointerException
at com.swtdesigner.gwt.model.widgets.support.GWTState.<init>(GWTState.java:142)
at com.swtdesigner.gwt.support.browser.saf.GWTStateSaf.<init>(GWTStateSaf.java:30)
at com.swtdesigner.gwt.support.browser.saf.BrowserSupportFactory.createState(BrowserSupportFactory.java:15)
at com.swtdesigner.gwt.model.widgets.support.GWTState.createState(GWTState.java:1677)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.getState(UIObjectInfo.java:394)
... 78 more
Caused by: java.lang.NullPointerException
at com.swtdesigner.gwt.support.host.ModuleSpace.invokeNativeInt(ModuleSpace.java:90)
at com.swtdesigner.gwt.support.host.JavaScriptHost.invokeNativeInt(JavaScriptHost.java:64)
at com.google.gwt.user.client.impl.DOMImpl.getEventsSunk(DOMImpl.java)
at com.google.gwt.user.client.DOM.getEventsSunk(DOM.java:760)
at com.google.gwt.user.client.ui.UIObject.sinkEvents(UIObject.java:585)
at com.google.gwt.user.client.ui.FocusWidget.setElement(FocusWidget.java:165)
at com.google.gwt.user.client.ui.FocusWidget.<init>(FocusWidget.java:57)
at com.google.gwt.user.client.ui.ButtonBase.<init>(ButtonBase.java:34)
at com.google.gwt.user.client.ui.Button.<init>(Button.java:57)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at com.swtdesigner.gwt.model.widgets.support.GWTState.initClassesAndMethods(GWTState.java:451)
at com.swtdesigner.gwt.model.widgets.support.GWTState.<init>(GWTState.java:136)
... 82 more

eclipse.buildId=I20080207-1530
java.version=1.5.0_13
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86, WS=carbon, NL=en_US
Framework arguments: -keyring /Users/kacper/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws carbon -arch x86 -keyring /Users/kacper/.eclipse_keyring -consoleLog -showlocation


Error
Fri Mar 21 21:21:06 CET 2008
Designer [6.6.0.200803211001]: com.swtdesigner.properties.PropertyException: java.lang.NullPointerException
Product: GWT Designer Evaluation
Version: 4.0.0.200803211027
Expected: Eclipse 3.3
Actual: Eclipse 3.4.0.v20080201
Actual Eclipse Build Name:
Actual Eclipse Build ID: I20080207-1530
IDE Actual Name: Eclipse
IDE Actual Version: 3.3.100.I20080204-0800
IDE Actual NL: en_US
Activation Key: GWTDesignerEval-NK0SH-GM0BV-5BCGK
Physical Address: 00-1D-4F-F8-0E-86, HardwareAddress[00-1D-4F-FF-FE-65-40-AA], HardwareAddress[00-1B-63-AD-E5-AF]
Code Gen: Flat Mode, Use Existing, First Assignment, Make Final
Events: Anonymous Class
GWT Home: /Users/kacper/gwt-mac-1.4.61
Platform Product: Eclipse
Platform Version: 3.3.100.I20080204-0800
OS Name: Mac OS X
OS Architecture: i386
OS Version: 10.5.2

org.apache.commons.lang.exception.NestableError: com.swtdesigner.properties.PropertyException: java.lang.NullPointerException
at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:56)
at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5605)
at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5586)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.handleRootNodeSelected(DesignerEditorPropertyComposite.java:665)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.updatePropertyComposite(DesignerEditorPropertyComposite.java:872)
at com.swtdesigner.gef.DesignerEditor.parseCompilationUnit(DesignerEditor.java:1205)
at com.swtdesigner.gef.DesignerEditor$17.execute(DesignerEditor.java:1103)
at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:54)
at com.swtdesigner.gef.DesignerEditor.handleActivate(DesignerEditor.java:1097)
at com.swtdesigner.gef.DesignerEditor.handleActivate(DesignerEditor.java:1088)
at com.swtdesigner.editors.MultiPageEditor.showDesignEditor(MultiPageEditor.java:409)
at com.swtdesigner.editors.MultiPageEditor.switchSourceDesign(MultiPageEditor.java:467)
at com.swtdesigner.actions.editor.SwitchAction.run(SwitchAction.java:12)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:582)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:499)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:451)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1553)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1577)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1562)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1353)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3409)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3007)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2392)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2356)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2222)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:474)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:469)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:362)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
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:585)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:564)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1251)
Caused by: com.swtdesigner.properties.PropertyException: java.lang.NullPointerException
at com.swtdesigner.gwt.model.widgets.panel.TopLevelUtils.createShot(TopLevelUtils.java:116)
at com.swtdesigner.gwt.model.widgets.panel.RootPanelInfo.createGUIShot(RootPanelInfo.java:76)
at com.swtdesigner.model.JavaInfo$18.execute(JavaInfo.java:5615)
at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:54)
... 43 more
Caused by: java.lang.NullPointerException
at com.swtdesigner.gwt.model.widgets.support.GWTState.isBody(GWTState.java:1459)
at com.swtdesigner.gwt.support.browser.saf.GWTStateSaf.fetchAbsoluteBounds(GWTStateSaf.java:79)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.fetchElementAbsoluteBounds(UIObjectInfo.java:523)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.fetchObjectAbsoluteBounds(UIObjectInfo.java:517)
at com.swtdesigner.gwt.model.widgets.UIObjectInfo.fetchAbsoluteBounds(UIObjectInfo.java:511)
at com.swtdesigner.gwt.model.widgets.panel.TopLevelUtils.createShot(TopLevelUtils.java:93)
... 46 more

and others (I could attach log file),

they stopped to appear after I cleaned project and cleared Eclipse workspace,

regards,
Peter

[Eric Clayberg]

errors just started after I've disabled that option in settings
...
they stopped to appear after I cleaned project and cleared Eclipse workspace,

Those are all low level DOM/JavaScript errors that would be completely unrelated to that preference setting.

There could have been a problem with cached GWT bytecodes which would go away when clearing the Eclipse workspace.