[jira] [Commented] (FELIX-5654) The web console plugin init(config) method is invoked for every request to the console

["Carsten Ziegeler (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FELIX-5654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16062372#comment-16062372 ] 

Carsten Ziegeler commented on FELIX-5654:
-----------------------------------------

[~o.otto] Thanks for reporting, Looking at the code of the web console, this happens if your plugin throws a ServletException from within the init() method. Unfortunately this is not logged. Could you maybe check whether this is the case?

> The web console plugin init(config) method is invoked for every request to the console
> --------------------------------------------------------------------------------------
>
>                 Key: FELIX-5654
>                 URL: https://issues.apache.org/jira/browse/FELIX-5654
>             Project: Felix
>          Issue Type: Bug
>          Components: Web Console
>    Affects Versions: webconsole-4.3.4
>            Reporter: Olaf Otto
>
> I have published a web console plugin (extending AbstractWebConsolePlugin). Before Sling 9, the init(config) method (from the Servlet API) used to be called, as it should, exactly once when the servlet was made available.
> Since sling 9, the init method on this *singleton* gets invoked every time the web console (not just this plugin) is requested.
> Here is a stack trace of the init invocation:
> {code}
> ...init(...)  
> at org.apache.felix.webconsole.internal.servlet.PluginHolder$Plugin.init(PluginHolder.java:497)
> at org.apache.felix.webconsole.internal.servlet.PluginHolder$Plugin.getConsolePlugin(PluginHolder.java:600)
> at org.apache.felix.webconsole.internal.servlet.PluginHolder$Plugin.doGetCategory(PluginHolder.java:586)
> at org.apache.felix.webconsole.internal.servlet.PluginHolder$ServletPlugin.doGetCategory(PluginHolder.java:714)
> at org.apache.felix.webconsole.internal.servlet.PluginHolder$Plugin.getCategory(PluginHolder.java:581)
> at org.apache.felix.webconsole.internal.servlet.PluginHolder.getLocalizedLabelMap(PluginHolder.java:255)
> at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:539)
> at org.apache.felix.webconsole.internal.servlet.OsgiManager$3.run(OsgiManager.java:465)
> at java.security.AccessController.doPrivileged(AccessController.java:-1)
> at org.apache.felix.webconsole.internal.servlet.OsgiManager.service(OsgiManager.java:461)
> at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:85)
> at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:79)
> at org.apache.felix.http.sslfilter.internal.SslFilter.doFilter(SslFilter.java:89)
> at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)
> at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)
> at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:138)
> at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)
> at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)
> at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:128)
> at org.apache.felix.http.base.internal.dispatch.DispatcherServlet.service(DispatcherServlet.java:49)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:845)
> at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584)
> at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:224)
> 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 org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
> 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:110)
> 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)
> {code}



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