Contact us
Get started
Loading...
Important Notice - Forums is archived

To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Product icon
TUTORIAL

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.

Calling javascript synchronously by Enver Haase, 1 month ago
Recent Posts
Vaadin Forum3. Vaadin 6, 7, 8

Exception in running vaadin sample application: customermanager

Mortoza Khan
7 years ago Oct 24, 2015 6:08am

Hi
I am trying to run one of the vaadin sample applications (customermanager) in GitHub but no luck. I would appreciate any help.

Severe:   WebModule[/customer-manager-ui]Servlet VaadinServlet threw unload() exception
javax.servlet.ServletException: Servlet.destroy() for servlet VaadinServlet threw exception
    at org.apache.catalina.core.StandardWrapper.unload(StandardWrapper.java:1913)
    at org.apache.catalina.core.StandardWrapper.stop(StandardWrapper.java:2194)
    at org.apache.catalina.core.StandardContext.stop(StandardContext.java:6121)
    at com.sun.enterprise.web.WebModule.stop(WebModule.java:720)
    at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:1172)
    at com.sun.enterprise.web.WebContainer.unloadWebModule(WebContainer.java:2439)
    at com.sun.enterprise.web.WebContainer.unloadWebModule(WebContainer.java:2394)
    at com.sun.enterprise.web.WebApplication.stop(WebApplication.java:190)
    at org.glassfish.internal.data.EngineRef.stop(EngineRef.java:161)
    at org.glassfish.internal.data.ModuleInfo.stop(ModuleInfo.java:324)
    at org.glassfish.internal.data.ApplicationInfo.stop(ApplicationInfo.java:380)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.unload(ApplicationLifecycle.java:1059)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.undeploy(ApplicationLifecycle.java:1099)
    at org.glassfish.deployment.admin.UndeployCommand.execute(UndeployCommand.java:412)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:539)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:535)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:534)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:565)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:557)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:556)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1464)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:109)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1846)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1722)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:534)
    at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:224)
    at org.glassfish.grizzly.http.server.StaticHttpHandlerBase.service(StaticHttpHandlerBase.java:189)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
    at com.vaadin.server.VaadinServlet.destroy(VaadinServlet.java:1282)
    at org.apache.catalina.core.StandardWrapper.unload(StandardWrapper.java:1899)
    ... 49 more
----- Root Cause -----
java.lang.NullPointerException
    at com.vaadin.server.VaadinServlet.destroy(VaadinServlet.java:1282)
    at org.apache.catalina.core.StandardWrapper.unload(StandardWrapper.java:1899)
    at org.apache.catalina.core.StandardWrapper.stop(StandardWrapper.java:2194)
    at org.apache.catalina.core.StandardContext.stop(StandardContext.java:6121)
    at com.sun.enterprise.web.WebModule.stop(WebModule.java:720)
    at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:1172)
    at com.sun.enterprise.web.WebContainer.unloadWebModule(WebContainer.java:2439)
    at com.sun.enterprise.web.WebContainer.unloadWebModule(WebContainer.java:2394)
    at com.sun.enterprise.web.WebApplication.stop(WebApplication.java:190)
    at org.glassfish.internal.data.EngineRef.stop(EngineRef.java:161)
    at org.glassfish.internal.data.ModuleInfo.stop(ModuleInfo.java:324)
    at org.glassfish.internal.data.ApplicationInfo.stop(ApplicationInfo.java:380)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.unload(ApplicationLifecycle.java:1059)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.undeploy(ApplicationLifecycle.java:1099)
    at org.glassfish.deployment.admin.UndeployCommand.execute(UndeployCommand.java:412)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:539)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:535)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:534)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:565)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:557)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:556)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1464)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:109)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1846)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1722)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:534)
    at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:224)
    at org.glassfish.grizzly.http.server.StaticHttpHandlerBase.service(StaticHttpHandlerBase.java:189)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Thread.java:745)

Info:   Vaadin web context destroyed
Info:   Created HTTP listener http-listener-1 on host/port 0.0.0.0:8080
Info:   Grizzly Framework 2.3.15 started in: 50ms - bound to [/0.0.0.0:8080]
Info:   visiting unvisited references
Info:   visiting unvisited references
Severe:   Class [ Lcom/vaadin/workshop/customermanager/service/EntityService; ] not found. Error while loading [ class com.vaadin.workshop.customermanager.ui.view.AbstractEntityView ]
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
Info:   visiting unvisited references
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension.vetoBeans(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.message.MessageBundleExtension.detectInterfaces(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.message.MessageBundleExtension.detectInterfaces(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.message.MessageBundleExtension.detectInterfaces(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] org.glassfish.sse.impl.ServerSentEventCdiExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] org.glassfish.sse.impl.ServerSentEventCdiExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] org.glassfish.sse.impl.ServerSentEventCdiExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] private org.glassfish.jersey.gf.cdi.internal.CdiComponentProvider.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] private org.glassfish.jersey.gf.cdi.internal.CdiComponentProvider.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension.vetoBeans(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] private org.glassfish.jersey.gf.cdi.internal.CdiComponentProvider.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] private org.glassfish.jersey.gf.cdi.internal.CdiComponentProvider.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.message.MessageBundleExtension.detectInterfaces(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension.vetoBeans(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] org.glassfish.sse.impl.ServerSentEventCdiExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
WARN:   WELD-000411: Observer method [BackedAnnotatedMethod] protected org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension.vetoBeans(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.
Info:   class: org.apache.deltaspike.core.impl.jmx.MBeanExtension activated=true
Info:   class: org.apache.deltaspike.core.impl.message.MessageBundleExtension activated=true
Info:   class: org.apache.deltaspike.core.impl.message.NamedMessageBundleInvocationHandler activated=true
Info:   class: org.apache.deltaspike.core.impl.config.ConfigurationExtension activated=true
Info:   class: org.apache.deltaspike.core.impl.exception.control.extension.ExceptionControlExtension activated=true
Info:   class: org.apache.deltaspike.core.impl.exclude.extension.ExcludeExtension activated=true
Info:   class: org.apache.deltaspike.core.impl.exclude.CustomProjectStageBeanFilter activated=true
Info:   class: org.apache.deltaspike.core.impl.exclude.GlobalAlternative activated=true
Info:   class: org.apache.deltaspike.core.impl.scope.DeltaSpikeContextExtension activated=true
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.EntityQuery because of underlying class loading error: Type com.vaadin.workshop.customermanager.service.EntityService not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.event.EntityEvent because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.AbstractEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.event.EntitySavedEvent because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.AbstractEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.view.AbstractEntityEditor because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.AbstractEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.view.AbstractEntityView because of underlying class loading error: Type com.vaadin.workshop.customermanager.service.EntityService not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.view.customer.CustomerEditor because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.CustomerEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.view.customer.CustomerView because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.AbstractEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.view.invoice.InvoiceEditor because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.InvoiceEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   WELD-000119: Not generating any bean definitions from com.vaadin.workshop.customermanager.ui.view.invoice.InvoiceView because of underlying class loading error: Type com.vaadin.workshop.customermanager.entity.AbstractEntity not found.  If this is unexpected, enable DEBUG logging to see the full error.
Info:   Computed the following DeltaSpike ProjectStage: Production
Warning:   The following warnings have been detected: WARNING: Parameter 1 of type T from public void org.apache.deltaspike.core.util.context.ContextualInstanceInfo.setContextualInstance(T) is not resolvable to a concrete type.
WARNING: Parameter 1 of type javax.enterprise.context.spi.CreationalContext<T> from public void org.apache.deltaspike.core.util.context.ContextualInstanceInfo.setCreationalContext(javax.enterprise.context.spi.CreationalContext<T>) is not resolvable to a concrete type.

Warning:   The following warnings have been detected: WARNING: Parameter 1 of type java.lang.Class<?> from public void org.apache.deltaspike.core.impl.message.NamedMessageBundleInvocationHandler.setTargetType(java.lang.Class<?>) is not resolvable to a concrete type.

Info:   UIScopedContext registered for Vaadin CDI
Info:   ViewScopedContext registered for Vaadin CDI
Info:   Initializing web context for path /customer-manager-ui
Info:   Discovering Vaadin UIs...
Info:   1 beans inheriting from UI discovered!
Info:   Vaadin UI com.vaadin.workshop.customermanager.ui.CustomerManagerUI is marked as @CDIUI without context path, this UI is accessible from context root of deployment
Info:   Available Vaadin UIs for CDI deployment [/ => CustomerManagerUI]
Info:   Registering VaadinServlet with CDIUIProvider
Info:   Mapping VaadinServlet to /*
Info:   Done deploying Vaadin UIs
Info:   Loading application [_Customer_manager_s_UI_module] at [/customer-manager-ui]
Info:   _Customer_manager_s_UI_module was successfully deployed in 4,887 milliseconds.
Warning:   
=================================================================
Vaadin is running in DEBUG MODE.
Add productionMode=true to web.xml to disable debug features.
To show debug window, add ?debug to your application URL.
=================================================================
Severe:   java.lang.IllegalArgumentException: Trying to navigate to an unknown state 'customers' and an error view provider not present
    at com.vaadin.navigator.Navigator.navigateTo(Navigator.java:528)
    at com.vaadin.workshop.customermanager.ui.CustomerManagerUI.init(CustomerManagerUI.java:66)
    at com.vaadin.ui.UI.doInit(UI.java:646)
    at com.vaadin.server.communication.UIInitHandler.getBrowserDetailsUI(UIInitHandler.java:214)
    at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:74)
    at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)
    at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1408)
    at com.vaadin.cdi.server.VaadinCDIServletService.handleRequest(VaadinCDIServletService.java:92)
    at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:350)
ts chuah
6 years ago Mar 20, 2017 3:10pm

I have similar issue, it seems like drop table not able to execute, but I still can run the application.