| Re: [jetty-users] NoClassDefFoundError : Embedded Jetty |
_______________________________________________Hi Greg & other users,
Please accept apologies from me.
Last dump shared “Build_parentLoaderTrue_dumpStderr.txt” was for scenario 1. i.e output from eclipse environment where set Parent Clasloade helped to resolve No class def issue.
Somehow I am not able to get DumpStdErr on my production build environment ( i.e sccenario 2 where NCDFE is still persist). I will share with you dump as soon as I get there.
Regards,
Sujay
From: Sujay Pujari
Sent: Friday, March 13, 2020 12:58 AM
To: JETTY user mailing list <jetty-users@xxxxxxxxxxx>
Subject: RE: [jetty-users] NoClassDefFoundError : Embedded Jetty
Hi Greg,
I just want to give more detail about our issue
We have multiple web apps, and one of them is configured in ediscovery.xml.
Also different login services are used for different applications.
Hence we used per web app scoped : security handler approach instead of addbean at server level.
Ref: https://www.eclipse.org/jetty/documentation/current/configuring-security.html
Also,
- On eclipse IDE workspace , when we use parentLoaderPriority true then we don’t face any such issue
- Now when we have created a installer which copies this jars in installation directory and a Java comman launches our server, then parentLoaderPriority true is not helping us.
PFA : Build_parentLoaderTrue_dumpStderr.txt
As output of Stderr when I ran dumpStdErr in Build environment.
Thanks & Regards,
Sujay
From: jetty-users-bounces@xxxxxxxxxxx <jetty-users-bounces@xxxxxxxxxxx> On Behalf Of Greg Wilkins
Sent: Thursday, March 12, 2020 2:16 AM
To: JETTY user mailing list <jetty-users@xxxxxxxxxxx>
Subject: Re: [jetty-users] NoClassDefFoundError : Embedded Jetty
Sujey,
Jetty 6 to Jetty 9!!! Happy new decade! !)
After you start the server, can you do a Server.dumpStdErr() and post the output?
Your configuration of the login service by setting a new security handler on the context is a bit strange. You should be able to just add the login service as a bean on the server and it will be found.
Do any of the frameworks you are using set the Thread context classloader?
regards
On Wed, 11 Mar 2020 at 20:18, Sujay Pujari <sujay_pujari@xxxxxxxxxxxxxx> wrote:
Hello Jetty users,
We are migrating Jetty from v6 to ver 9.4.27 & using embedded Jetty.
Where in authentication is performed using form based , Jaas authentication.
In Jaas.conf file we have configured to use following custom module
class com.acme.es.nuvo.ediscovery.jaas.DiscoveryLoginModule which extends from AbstractLoginModule.
Now inside Login method of this class, We have following line of code
Credential cr = Credential.getCredential(pwdStr);
Where we are getting NoClassDefFoundError for org.eclipse.jetty.util.security.Credential.
Note : This issue is observed on Jetty 9.x & 8.x ( but was working fine with 6.x )
Inspite of the fact that jetty-util jar corresponding to this is present in the buildpath.
Also,
Verbose:class shows that this class is getting loaded.
class load: org.eclipse.jetty.util.security.Credential from: file:/../lib/Jetty9.4.15/jetty-util-9.4.15.v20190215.jar
Can anybody suggest what I might be missing ? Any appropriate way to troubleshoot this?
Any help would be really appreciated.
Here is detailed stack:
javax.security.auth.login.LoginException: java.lang.NoClassDefFoundError: org.eclipse.jetty.util.security.Credential
at com.acme.es.nuvo.ediscovery.jaas.DiscoveryLoginModule.login(DiscoveryLoginModule.java:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508)
at javax.security.auth.login.LoginContext.invoke(LoginContext.java:788)
at javax.security.auth.login.LoginContext.access$000(LoginContext.java:196)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:698)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:696)
at java.security.AccessController.doPrivileged(AccessController.java:650)
at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:696)
at javax.security.auth.login.LoginContext.login(LoginContext.java:597)
at org.eclipse.jetty.jaas.JAASLoginService.login(JAASLoginService.java:251)
at org.eclipse.jetty.security.authentication.LoginAuthenticator.login(LoginAuthenticator.java:67)
at org.eclipse.jetty.security.authentication.FormAuthenticator.login(FormAuthenticator.java:182)
at org.eclipse.jetty.security.authentication.DeferredAuthentication.login(DeferredAuthentication.java:118)
at org.eclipse.jetty.server.Request.login(Request.java:2411)
at com.acme.es.nuvo.ediscovery.ui.actions.LoginAction.login(LoginAction.java:70)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508)
at com.acme.es.nuvo.ediscovery.ui.DiscoveryAction.dispatchMethod(DiscoveryAction.java:149)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.acme.es.nuvo.ediscovery.ui.DiscoveryRequestProcessor.process(DiscoveryRequestProcessor.java:84)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at com.acme.es.nuvo.ediscovery.ui.SecureServlet.process(SecureServlet.java:67)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder$NotAsyncServlet.service(ServletHolder.java:1395)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:755)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1617)
at com.acme.es.nuvo.common.CompressionFilter.doFilter(CompressionFilter.java:80)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
at com.acme.es.nuvo.common.CacheFilter.doFilter(CacheFilter.java:92)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
at com.acme.es.nuvo.common.Utf8Filter.doFilter(Utf8Filter.java:34)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
at com.acme.es.nuvo.common.LocaleFilter.doFilter(LocaleFilter.java:57)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
at com.acme.es.nuvo.common.SecurityTokenFilter.doFilter(SecurityTokenFilter.java:78)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
at com.acme.es.nuvo.common.SSLFilter.doFilter(SSLFilter.java:58)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1596)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1610)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1300)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1580)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1215)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
at org.eclipse.jetty.server.handler.DebugHandler.handle(DebugHandler.java:81)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:500)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel$$Lambda$59.0000000000D9AA80.dispatch(Unknown Source)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:543)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:398)
at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:161)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.lang.Thread.run(Thread.java:785)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.util.security.Credential
at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:565)
at java.lang.ClassLoader.loadClass(ClassLoader.java:809)
... 86 more
Other details :
A.
We are instantiating jetty instance through Java code and where we refer jetty.xml for server configuration.
B.
In jetty.xml we uses following
<Configure id="Server" class="org.eclipse.jetty.server.Server">
…
…
<Call name="addBean">
<Arg>
<New id="DeploymentManager" class="org.eclipse.jetty.deploy.DeploymentManager">
<Set name="contexts">
<Ref refid="Contexts" />
</Set>
<Call id="webappprovider" name="addAppProvider">
<Arg>
<New class="org.eclipse.jetty.deploy.providers.WebAppProvider">
<Set name="monitoredDirName"><Property name="Project.home" default="." />/config/jetty_contexts</Set>
<Set name="scanInterval">0</Set>
<Set name="extractWars">true</Set>
<!-- <Set name="Recursive">true</Set> -->
</New>
</Arg>
</Call>
</New>
</Arg>
</Call>
…
</Configure>
C. one of the file present at <project.home>/config/jetty_contexts is ediscovery.xml
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!-- Required minimal context configuration : -->
<!-- + contextPath -->
<!-- + war OR resourceBase -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<Set name="contextPath">/ediscovery</Set>
<!-- <Set name="parentLoaderPriority">true</Set>-->
<Set name="war"><SystemProperty name="Project.home" default="."/>/lib/Application_ui.war</Set>
…..
<Set name="securityHandler">
<New class="org.eclipse.jetty.security.ConstraintSecurityHandler">
<Set name="loginService">
<New class="org.eclipse.jetty.jaas.JAASLoginService">
<Set name="name">ediscovery</Set>
<Set name="loginModuleName">DiscoveryLoginModule</Set>
<Set name="CallbackHandlerClass">
org.eclipse.jetty.jaas.callback.DefaultCallbackHandler
</Set>
<Set name="roleClassNames">
<Array type="java.lang.String">
<Item>org.eclipse.jetty.jaas.JAASRole</Item>
</Array>
</Set>
</New>
</Set>
<Set name="checkWelcomeFiles">true</Set>
</New>
</Set>
…
</Configure>
Now I have few observations.
When in File C i.e. ediscovery.xml I make following line uncommented
<Set name="parentLoaderPriority">true</Set>
Then,
In my eclipse I don’t see any No Class Def Found Error.
But,
- In my build environment ( installed version, I see same error , classpath has required jars present )
- Jetty 6 we were nor setting parentLoaderPriority to True.
Any help to troubleshoot this problem will be appreciated.
Thanks & Regards,
Sujay
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