NoClassDefFoundError on local DevServer when using Java8 runtime

[mpoehler]

Hi,

I have extracted a small project to demonstrate the behaviour here: https://github.com/mpoehler/endpointsAppEngineJava8Test

Just clone it and run it with gradle appengineRun and it will fail with the following Exception:

2017-08-28 16:45:23.068:WARN:oejs.ServletHandler:qtp386163331-18: Error for /_ah/api/discovery/v1/apis/klpvApi/v2/rest
java.lang.NoClassDefFoundError: com/google/appengine/repackaged/org/codehaus/jackson/node/ObjectNode
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
at java.lang.Class.getConstructor0(Class.java:3075)
at java.lang.Class.newInstance(Class.java:412)
at org.eclipse.jetty.server.handler.ContextHandler$Context.createInstance(ContextHandler.java:2481)
at org.eclipse.jetty.servlet.ServletContextHandler$Context.createServlet(ServletContextHandler.java:1327)
at org.eclipse.jetty.servlet.ServletHolder.newInstance(ServletHolder.java:1285)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:615)
at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:499)
at org.eclipse.jetty.servlet.ServletHolder.ensureInstance(ServletHolder.java:791)
at org.eclipse.jetty.servlet.ServletHolder.prepare(ServletHolder.java:776)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:579)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at com.google.appengine.tools.development.jetty9.DevAppEngineWebAppContext.doScope(DevAppEngineWebAppContext.java:94)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at com.google.appengine.tools.development.jetty9.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:597)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:534)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:745)

The deployed version works, as you can see here: https://endpointstest-169017.appspot.com/

When you remove the <runtime>java8</runtime> entry in application-web.xml, the application works as expected locally too, but that uses an other dev-server (jetty 6 instead of 9).

It seems to me, that there is an dependency missing in the new java8 dev-server, but I have no clue what that can be.

Thanks in advance!

Marco

[loosebazooka]

@tangiel is this the same thing we've been seeing? @ludoch any idea?

[tangiel]

Yes, it is the same thing.

[mpoehler]

Is there a workaround?

[patflynn]

ping @tangiel @loosebazooka

[loosebazooka]

@tangiel is this just a problem with the devappserver? Does moving to an older version of the cloud sdk fixt this?

[tangiel]

It seems so, given the reports. I would guess the older SDK works since this is a Java 8 issue.

[loosebazooka]

@ludoch we're seeing java8 specific issues on dev appserver with endpoints.

[mpoehler]

I updated my example https://github.com/mpoehler/endpointsAppEngineJava8Test with the latest endpoint dependencies to 2.0.8 / 1.0.5 and tried 1.9.54 and 1.9.55 behaviour.

It turns out that the latest version of the endpoints-framework and endpoints-management-control-appengine are not referencing the latest version of the sdk, but forcing 1.9.55 doesn't change anything.

marco (master *) endpointsAppEngineJava8Test $ ./gradlew dependencyInsight --dependency appengine-api-1.0-sdk
:dependencyInsight
com.google.appengine:appengine-api-1.0-sdk:1.9.49 (conflict resolution)
--- com.google.endpoints:endpoints-framework:2.0.8
--- compile

com.google.appengine:appengine-api-1.0-sdk:1.9.40 -> 1.9.49
--- com.google.endpoints:endpoints-management-control-appengine:1.0.5
--- compile

I added an explicit dependency to the current sdk version 1.9.55

marco (master *) endpointsAppEngineJava8Test $ ./gradlew dependencyInsight --dependency appengine-api-1.0-sdk
:dependencyInsight
com.google.appengine:appengine-api-1.0-sdk:1.9.55 (conflict resolution)
--- compile

com.google.appengine:appengine-api-1.0-sdk:1.9.40 -> 1.9.55
--- com.google.endpoints:endpoints-management-control-appengine:1.0.5
--- compile

com.google.appengine:appengine-api-1.0-sdk:1.9.49 -> 1.9.55
--- com.google.endpoints:endpoints-framework:2.0.8
--- compile

Sadly that doesn't change anything. I'm still getting the same Exception. :-(

[mpoehler]

The Error still exists using the latest versions:

• Google Cloud SDK 171.0.0 (2017-09-13)
• Java SDK to version 1.9.56
• endpoints-framework-gradle-plugin to 1.0.2

[loosebazooka]

@davidjn @ludoch issues with devappserver?

[ludoch]

Will take a send look. Not sure if related yet, but I see old refences of appengine (1.9.40) in https://github.com/cloudendpoints/endpoints-management-java/blob/8c1acb07581706a57ffd55937fb9451a8b74ca4a/gradle.properties#L21

…

On Thu, Sep 14, 2017 at 7:31 AM, Appu Goundan ***@***.***> wrote: @davidjn <https://github.com/davidjn> @ludoch <https://github.com/ludoch> issues with devappserver? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#53 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAE4zYr6yeYsD-mbLjpyxcS6vLmQyGdxks5siTi2gaJpZM4PEquP> .

[ludoch]

@tangiel <https://github.com/tangiel> can you help as well? On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < ludovic.champenois@gmail.com> wrote:

…

Will take a send look. Not sure if related yet, but I see old refences of appengine (1.9.40) in https://github.com/cloudendpoints/endpoints-management-java/blob/ 8c1acb07581706a57ffd55937fb9451a8b74ca4a/gradle.properties#L21 On Thu, Sep 14, 2017 at 7:31 AM, Appu Goundan ***@***.***> wrote: > @davidjn <https://github.com/davidjn> @ludoch <https://github.com/ludoch> > issues with devappserver? > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub > <#53 (comment)>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AAE4zYr6yeYsD-mbLjpyxcS6vLmQyGdxks5siTi2gaJpZM4PEquP> > . >

[ludoch]

First thing is in endpoints-framework to stop relying on the API jar 1.9.49 and this is the first bug that we need to fix in the endpoints library On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < ludovic.champenois@gmail.com> wrote:

…

@tangiel <https://github.com/tangiel> can you help as well? On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < ***@***.***> wrote: > Will take a send look. > > Not sure if related yet, but I see old refences of appengine (1.9.40) in > https://github.com/cloudendpoints/endpoints-management-java/ > blob/8c1acb07581706a57ffd55937fb9451a8b74ca4a/gradle.properties#L21 > > > On Thu, Sep 14, 2017 at 7:31 AM, Appu Goundan ***@***.***> > wrote: > >> @davidjn <https://github.com/davidjn> @ludoch >> <https://github.com/ludoch> issues with devappserver? >> >> — >> You are receiving this because you were mentioned. >> Reply to this email directly, view it on GitHub >> <#53 (comment)>, >> or mute the thread >> <https://github.com/notifications/unsubscribe-auth/AAE4zYr6yeYsD-mbLjpyxcS6vLmQyGdxks5siTi2gaJpZM4PEquP> >> . >> > >

[ludoch]

When I remove the dep to 1.9.49, I see a different error: java.lang.ClassNotFoundException: com.google.appengine.repackaged.com.google.api.client.http.javanet.NetHttpTransport On Thu, Sep 14, 2017 at 8:42 AM, Ludovic Champenois < ludovic.champenois@gmail.com> wrote:

…

First thing is in endpoints-framework to stop relying on the API jar 1.9.49 and this is the first bug that we need to fix in the endpoints library On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < ***@***.***> wrote: > @tangiel <https://github.com/tangiel> can you help as well? > > On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < > ***@***.***> wrote: > >> Will take a send look. >> >> Not sure if related yet, but I see old refences of appengine (1.9.40) in >> https://github.com/cloudendpoints/endpoints-management-java/ >> blob/8c1acb07581706a57ffd55937fb9451a8b74ca4a/gradle.properties#L21 >> >> >> On Thu, Sep 14, 2017 at 7:31 AM, Appu Goundan ***@***.***> >> wrote: >> >>> @davidjn <https://github.com/davidjn> @ludoch >>> <https://github.com/ludoch> issues with devappserver? >>> >>> — >>> You are receiving this because you were mentioned. >>> Reply to this email directly, view it on GitHub >>> <#53 (comment)>, >>> or mute the thread >>> <https://github.com/notifications/unsubscribe-auth/AAE4zYr6yeYsD-mbLjpyxcS6vLmQyGdxks5siTi2gaJpZM4PEquP> >>> . >>> >> >> >

[ludoch]

https://github.com/cloudendpoints/endpoints-java/blob/b07263b68c75f1862bd1dc5f845d3352638f5b64/gradle.properties#L11 On Thu, Sep 14, 2017 at 8:43 AM, Ludovic Champenois < ludovic.champenois@gmail.com> wrote:

…

When I remove the dep to 1.9.49, I see a different error: java.lang.ClassNotFoundException: com.google.appengine. repackaged.com.google.api.client.http.javanet.NetHttpTransport On Thu, Sep 14, 2017 at 8:42 AM, Ludovic Champenois < ***@***.***> wrote: > First thing is in endpoints-framework to stop relying on the API jar > 1.9.49 and this is the first bug that we need to fix in the endpoints > library > > On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < > ***@***.***> wrote: > >> @tangiel <https://github.com/tangiel> can you help as well? >> >> On Thu, Sep 14, 2017 at 7:59 AM, Ludovic Champenois < >> ***@***.***> wrote: >> >>> Will take a send look. >>> >>> Not sure if related yet, but I see old refences of appengine (1.9.40) >>> in >>> https://github.com/cloudendpoints/endpoints-management-java/ >>> blob/8c1acb07581706a57ffd55937fb9451a8b74ca4a/gradle.properties#L21 >>> >>> >>> On Thu, Sep 14, 2017 at 7:31 AM, Appu Goundan ***@***.*** >>> > wrote: >>> >>>> @davidjn <https://github.com/davidjn> @ludoch >>>> <https://github.com/ludoch> issues with devappserver? >>>> >>>> — >>>> You are receiving this because you were mentioned. >>>> Reply to this email directly, view it on GitHub >>>> <#53 (comment)>, >>>> or mute the thread >>>> <https://github.com/notifications/unsubscribe-auth/AAE4zYr6yeYsD-mbLjpyxcS6vLmQyGdxks5siTi2gaJpZM4PEquP> >>>> . >>>> >>> >>> >> >