Use Vaadin Project on external vServer

Dennis64 · June 18, 2018, 11:11am

Hi,

I use the Vaadin 10 Sample Project in Eclipse and was running it with Maven on my local machine (localhost:8080).

Now, I will run this on my vServer (e.g. 123.123.123.123:8080). I have tomcat 8.5 running on this machine. I exported the Vaadin Project in Eclipse as a vaadin.war file and deployed this file to the webapps folder at my tomcat installation. After restart my tomcat the vaadin.war file was automatically extracted to a “vaadin” folder with all my files.

Now my question, is there a documentation what I have to configure to see my code at 123.123.123.123:8080?

Thank you!

Artur · June 18, 2018, 11:12am

Try copying the Maven generated war file from the target folder instead (run mvn install if needed first)

Artur · June 18, 2018, 11:13am

Or if it’s only a path problem (e.g. it is deployed as /vaadin/) then rename it to ROOT.war to make Tomcat deploy it as /

Dennis64 · June 18, 2018, 12:26pm

Hi Artur,

Thanks for that quick response. I tried both. Creating the war file with “mvn install” and rename this war file to ROOT.war. After deploy this file and click on “Start” I receive these error messages

Artur · June 18, 2018, 12:27pm

What is the exception?

Dennis64 · June 18, 2018, 12:34pm

FAIL - Application at context path
[/] could not be started
FAIL - Encountered exception [org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]
.StandardHost[localhost]
.StandardContext]
]

    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

18-Jun-2018 14:22:26.423 INFO [http-nio-8080-exec-28]
org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive
[/opt/tomcat/webapps/ROOT.war] has finished i n [369]
ms

Dennis64 · June 19, 2018, 6:34am

Do I need a web.xml or something else where I have to configure things, or is it just the war file I need?

Artur · June 19, 2018, 6:40am

There is probably a “caused by” in the stacktrace that will give you more hints about the problem. There is no need for a web.xml as a VaadinServlet will be deployed using a /* mapping by default.

Dennis64 · June 19, 2018, 8:56am

This is the complete Exception. Is it a problem with the java version? I use openjava instead of oraclejava. Is that ok?

19-Jun-2018 10:54:57.936 INFO [http-nio-8080-exec-115]
 org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive 
[/opt/tomcat/webapps/vaadinflow.war]
19-Jun-2018 10:54:58.399 SEVERE [http-nio-8080-exec-115]
 org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]
.StandardHost[localhost]
.StandardContext
[/vaadinflow]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:985)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:507)
	at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1650)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1525)
	at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:285)
	at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:206)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:136)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:613)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.UnsupportedClassVersionError: com/vaadin/flow/server/startup/ServletVerifier : Unsupported major.minor version 52.0 (unable to load class [com.vaadin.flow.server.startup.ServletVerifier]
)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2341)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:828)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1277)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1136)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:278)
	at org.apache.catalina.startup.WebappServiceLoader.loadServices(WebappServiceLoader.java:188)
	at org.apache.catalina.startup.WebappServiceLoader.load(WebappServiceLoader.java:159)
	at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1612)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1125)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	... 46 more

19-Jun-2018 10:54:58.401 SEVERE [http-nio-8080-exec-115]
 org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive 
[/opt/tomcat/webapps/vaadinflow.war]
 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]
.StandardHost[localhost]
.StandardContext
[/vaadinflow]]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:758)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:985)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:507)
	at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1650)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1525)
	at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:285)
	at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:206)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:136)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:613)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)

19-Jun-2018 10:54:58.402 INFO [http-nio-8080-exec-115]
 org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive 
[/opt/tomcat/webapps/vaadinflow.war] has finished in [466]
 ms

#java -version
java version "1.7.0_181"
OpenJDK Runtime Environment (IcedTea 2.6.14) (7u181-2.6.14-1~deb8u1)
OpenJDK 64-Bit Server VM (build 24.181-b01, mixed mode)

Dennis64 · June 19, 2018, 9:24am

That’s it!

Not sure, if the problem was the openJDK instead of oracleJDK or that it was a Java7. I have removed my java installations and have now the oracleJDK8 running

 java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

and everything is working. Thanks for your help Artur!