Vaadin designer crashing

Brett10 · February 4, 2019, 8:53pm

I’m using flow and trying to create a new design in eclipse:


!ENTRY org.eclipse.ui 4 0 2019-02-05 07:45:26.119
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NullPointerException
	at com.vaadin.designer2.services.flow.FlowUtil.getFirstPrefix(FlowUtil.java:189)
	at com.vaadin.designer2.services.flow.FlowUtil.getRelativePathInFrontendOrStaticResources(FlowUtil.java:161)
	at com.vaadin.designer2.eclipse.wizards.NewFlowWizardPage.getInitialContents(NewFlowWizardPage.java:113)
	at org.eclipse.ui.dialogs.WizardNewFileCreationPage.createNewFile(WizardNewFileCreationPage.java:380)
	at com.vaadin.designer2.eclipse.wizards.NewFlowWizardPage.createNewFile(NewFlowWizardPage.java:483)
	at com.vaadin.designer2.eclipse.wizards.NewFlowWizard.performFinish(NewFlowWizard.java:49)
	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:772)
	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:411)
	at org.eclipse.jface.dialogs.Dialog.lambda$0(Dialog.java:619)
	at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:81)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:249)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5686)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1370)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4940)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4518)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:818)
	at org.eclipse.jface.window.Window.open(Window.java:794)
	at org.eclipse.ui.internal.handlers.WizardHandler$New.executeHandler(WizardHandler.java:269)
	at org.eclipse.ui.internal.handlers.WizardHandler.execute(WizardHandler.java:290)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:291)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:93)
	at jdk.internal.reflect.GeneratedMethodAccessor122.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:318)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:252)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:161)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:204)
	at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:393)
	at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:151)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:565)
	at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:397)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5686)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1370)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4940)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4518)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1170)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1059)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:667)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:597)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	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:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1471)

!ENTRY org.eclipse.m2e.logback.appender 2 0 2019-02-05 07:45:31.258
!MESSAGE Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!

!ENTRY org.eclipse.m2e.logback.appender 2 0 2019-02-05 07:45:31.260
!MESSAGE Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!

Brett10 · February 4, 2019, 8:54pm

I’m running java 11 on ubuntu with eclipse Photon.

Risto · February 5, 2019, 8:25am

Hi,

And thanks for reaching out. This looks like a bug in our project structure logic. Can you describe what your project looks like (or even share the project as a zip file to designer+feedback@vaadin.com)? Where in the project where you trying to create the design?

Brett10 · February 6, 2019, 9:29pm

I will send an zip file shortly.

I was trying to create the design in ‘limits’ package.

Brett10 · February 7, 2019, 10:48pm

So the next problem.

Given you mentioned it might be a problem with the project structure, I grabbed the example vaadin java/html project.

This time I managed to create a view but when the designer opened there was no component toolbar (see screen shot).

I found the following error in the logs:

org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.swt.SWT.error(SWT.java:4595)
	at org.eclipse.swt.SWT.error(SWT.java:4510)
	at org.eclipse.swt.SWT.error(SWT.java:4481)
	at org.eclipse.swt.widgets.Widget.error(Widget.java:526)
	at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:463)
	at org.eclipse.swt.custom.CLabel.setText(CLabel.java:935)
	at com.vaadin.designer2.browser.BrowserComposite$BrowserLoadListener.lambda$0(BrowserComposite.java:148)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4906)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4475)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:636)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1501)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1474)

Brett10 · February 7, 2019, 10:52pm

So I read the vaadin designer faq which says to use the following line:

env SWT_GTK3=0 GDK_NATIVE_WINDOWS=1 ./eclipse -Dorg.eclipse.swt.internal.gtk.cairoGraphics=true -Dorg.eclipse.swt.internal.gtk.useCairo=true

Not in the following startup trace that it mentions that GDK_NATIVE_WINDOWS no longer works.

Cli trace of eclipse:

./start.sh 

(eclipse:25829): Gdk-WARNING **: 09:49:30.509: The GDK_NATIVE_WINDOWS environment variable is not supported in GTK3.
See the documentation for gdk_window_ensure_native() on how to get native windows.
org.eclipse.m2e.logback.configuration: The org.eclipse.m2e.logback.configuration bundle was activated before the state location was initialized.  Will retry after the state location is initialized.
org.eclipse.m2e.logback.configuration: Logback config file: /home/bsutton/git/workspaces/micropbx/.metadata/.plugins/org.eclipse.m2e.logback.configuration/logback.1.10.0.20181127-2120.xml
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [bundleresource://1910.fwk943502798:1/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: Found binding in [bundleresource://1910.fwk943502798:2/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]

org.eclipse.m2e.logback.configuration: Initializing logback
Warning: NLS unused message: Outline_title in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Palette_title in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Property_editor_title in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Property_editor_error_title in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Property_editor_int_error in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Property_editor_float_error in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Property_editor_click_here_to_add_string in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Property_editor_click_here_to_add_boolean in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_javaPackage in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_designName in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_name_required in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_name_format in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_flow_choose_java_root in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_flow_default_package_warning in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_flow_location in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_design_location in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_java_location in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_package_name_format in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewDesignWizard_error_name_special_character in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewFlowTemplateWizard_template_location in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewFlowTemplateWizard_companion_file_already_exists in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewFlowTemplateWizard_java_source_root in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: NewFlowTemplateWizard_java_package in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Editor_wrong_content_unexpected_exception in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Editor_warning_file_readonly_title in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Editor_warning_file_readonly in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Editor_version_conflict_prevention_title in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Editor_version_conflict_prevention_message in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Error_scss_exception_view_errors_link in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Error_scss_exception_see_console in: com.vaadin.designer2.i18n.messages
Warning: NLS unused message: Error_polymer_imports_view_errors_link in: com.vaadin.designer2.i18n.messages
2019-02-08 09:50:21.538:INFO::main: Logging initialized @50880ms
2019-02-08 09:50:22.300:INFO:oejs.Server:main: jetty-9.3.19.v20170502
2019-02-08 09:50:22.374:INFO:oejsh.ContextHandler:main: Started o.e.j.s.ServletContextHandler@339b1c34{/,null,AVAILABLE}
2019-02-08 09:50:22.381:INFO:oejs.AbstractConnector:main: Started ServerConnector@29f94912{HTTP/1.1,[http/1.1]
}{localhost:34401}
2019-02-08 09:50:22.381:INFO:oejs.Server:main: Started @51724ms
Feb. 08, 2019 9:50:22 AM com.vaadin.designer2.server.AbstractEditorApplicationServer start
INFO: Remote preview available on http://10.10.0.166:34401. Designer running on http://localhost:34401.
09:50:22 SEVERE: [0208/095022.795426:ERROR:nss_util.cc(724)]
 After loading Root Certs, loaded==false: NSS error code: -8018
09:50:22 SEVERE: [0208/095022.874694:ERROR:sandbox_linux.cc(375)]
 InitializeSandbox() called with multiple threads in process gpu-process.
Feb. 08, 2019 9:50:23 AM com.vaadin.designer2.eclipse.editors.DesignVisualEditor setJxBrowserUrl
INFO: Setting browser url to http://localhost:34401/flow/0074/src/main/webapp/frontend/voicemail-users.html?mode=edit&editor#!edit

(Eclipse:25851): Gtk-WARNING **: 09:50:23.301: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:23.305: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:23.315: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:23.342: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:24.664: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:24.668: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:24.671: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)

(Eclipse:25851): Gtk-WARNING **: 09:50:24.677: Negative content width -12 (allocation 1, extents 6x7) while allocating gadget (node separator, owner GtkSeparatorToolItem)
Feb. 08, 2019 9:50:25 AM com.vaadin.integration.eclipse.notifications.ContributionService refreshNotifications
INFO: Schedule fetching all notifications
Feb. 08, 2019 9:50:26 AM com.vaadin.integration.eclipse.notifications.ContributionService startVersionJobs
INFO: Schedule version update jobs

(Eclipse:25851): Gtk-CRITICAL **: 09:50:26.208: gtk_distribute_natural_allocation: assertion 'extra_space >= 0' failed
Feb. 08, 2019 9:50:26 AM com.vaadin.designer2.browser.EmbeddedJxBrowser initializeBrowserCore
INFO: BrowserCore initialized.
Feb. 08, 2019 9:50:26 AM com.vaadin.integration.eclipse.notifications.model.NotificationsService doGet
INFO: Requesting user info (notification settings URL)
Feb. 08, 2019 9:50:26 AM com.vaadin.integration.eclipse.notifications.model.NotificationsService doGet
INFO: Fetching all notifications
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.zeroturnaround.jdi.JRWrapper (file:/home/bsutton/apps/eclipse/jee-2018-12/configuration/org.eclipse.osgi/1919/0/.cp/lib/jr-debugger-integration.jar) to field com.sun.tools.jdi.MirrorImpl.vm
WARNING: Please consider reporting this to the maintainers of com.zeroturnaround.jdi.JRWrapper
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Feb. 08, 2019 9:50:27 AM com.vaadin.integration.eclipse.notifications.model.NotificationsService getStatusCode
INFO: HTTP Response code :200
Feb. 08, 2019 9:50:27 AM com.vaadin.integration.eclipse.notifications.model.NotificationsService getNotifications
INFO: Parse notifications
Feb. 08, 2019 9:50:27 AM com.vaadin.integration.eclipse.notifications.model.NotificationsService saveCache
INFO: Save JSON notifications content to cache file /home/bsutton/git/workspaces/micropbx/.metadata/.plugins/com.vaadin.integration.eclipse/notifications-cache.json
Feb. 08, 2019 9:50:27 AM com.vaadin.integration.eclipse.notifications.model.NotificationsService getStatusCode
INFO: HTTP Response code :200
Feb. 08, 2019 9:50:29 AM com.vaadin.designer2.eclipse.editors.DesignVisualEditor setJxBrowserUrl
INFO: Setting browser url to http://localhost:34401/flow/0074/src/main/webapp/frontend/voicemail-users.html?mode=edit&editor#!edit
Feb. 08, 2019 9:50:29 AM com.vaadin.designer2.eclipse.editors.DesignVisualEditor setJxBrowserUrl
INFO: Setting browser url to http://localhost:34401/flow/0074/src/main/webapp/frontend/voicemail-users.html?mode=edit&editor#!edit
Feb. 08, 2019 9:50:29 AM com.vaadin.integration.eclipse.notifications.ContributionService schedulePollingJob
INFO: Schedule fetching new notifications
Feb. 08, 2019 9:50:47 AM com.vaadin.designer2.eclipse.internal.FlowComponentApiSupportImpl getComVaadinUiTagAnnotationValue
WARNING: Can't get annotation type
Java Model Exception: Java Model Status [UploadAbortEvent [in GeneratedVaadinUpload$UploadAbortEvent.class [in com.vaadin.flow.component.upload [in /home/bsutton/.m2/repository/com/vaadin/vaadin-upload-flow/1.2.0/vaadin-upload-flow-1.2.0.jar]
]] does not exist]
	at org.eclipse.jdt.internal.core.JavaElement.newNotPresentException(JavaElement.java:573)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:607)
	at org.eclipse.jdt.internal.core.BinaryType.getElementInfo(BinaryType.java:287)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:312)
	at org.eclipse.jdt.internal.core.BinaryType.getFlags(BinaryType.java:317)
	at org.eclipse.jdt.internal.core.BinaryTypeConverter.convert(BinaryTypeConverter.java:230)
	at org.eclipse.jdt.internal.core.BinaryTypeConverter.convert(BinaryTypeConverter.java:287)
	at org.eclipse.jdt.internal.core.BinaryTypeConverter.buildTypeDeclaration(BinaryTypeConverter.java:111)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.selectType(SelectionEngine.java:1600)
	at org.eclipse.jdt.internal.core.NamedMember.resolveType(NamedMember.java:328)
	at org.eclipse.jdt.internal.core.NamedMember.resolveType(NamedMember.java:270)
	at com.vaadin.designer2.eclipse.internal.FlowComponentApiSupportImpl.getAnnotationTypeFQN(FlowComponentApiSupportImpl.java:170)
	at com.vaadin.designer2.eclipse.internal.FlowComponentApiSupportImpl.getComVaadinUiTagAnnotationValue(FlowComponentApiSupportImpl.java:152)
	at com.vaadin.designer2.eclipse.internal.FlowComponentApiSupportImpl.updateComponentHierarchy(FlowComponentApiSupportImpl.java:120)
	at com.vaadin.designer2.eclipse.internal.FlowComponentApiSupportImpl.fetchComponentsForJavaProject(FlowComponentApiSupportImpl.java:104)
	at com.vaadin.designer2.eclipse.internal.FlowComponentApiSupportImpl.run(FlowComponentApiSupportImpl.java:93)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

Feb. 08, 2019 9:50:56 AM com.vaadin.integration.eclipse.notifications.jobs.nightly.NightlyCheckJob checkProjects
INFO: All vaadin 7+ projects : []

(Eclipse:25851): Gtk-CRITICAL **: 09:51:17.069: gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkScrollbar