Is it possible to defined a ServletContextListener with HTTP whiteboard?
I defined this service:
@Component(service = ServletContextListener.class)
@HttpWhiteboardListener
@HttpWhiteboardContextSelect("osgi.http.whiteboard.context.path=/app)")
public class MyServletContextListener implements ServletContextListener
{
}
Jetty (pax-web 8.0.33) logs this exception:
2026-01-29T15:41:50,090 | ERROR | paxweb-config-1-thread-1 |
JettyServerWrapper | 77 - org.ops4j.pax.web.pax-web-jetty -
8.0.33 | Section 4.4.3 of the Servlets specification allows
ServletContextListeners to be added only by ServletContainerInitializers,
declared in web.xml or web-fragment.xml or by discovery of @WebListener
annotated classes
java.lang.UnsupportedOperationException: Section 4.4.3 of the Servlets
specification allows ServletContextListeners to be added only by
ServletContainerInitializers, declared in web.xml or web-fragment.xml or by
discovery of @WebListener annotated classes
at
org.ops4j.pax.web.service.spi.servlet.DynamicRegistrations.register(DynamicRegistrations.java:322)
~[?:?]
at
org.ops4j.pax.web.service.spi.servlet.DynamicRegistrations.addListener(DynamicRegistrations.java:293)
~[?:?]
at
org.ops4j.pax.web.service.spi.servlet.OsgiDynamicServletContext.addListener(OsgiDynamicServletContext.java:139)
~[?:?]
at
org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer.onStartup(WebSocketServerContainerInitializer.java:278)
~[?:?]
at
org.ops4j.pax.web.service.spi.servlet.SCIWrapper.onStartup(SCIWrapper.java:43)
~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.PaxWebServletContextHandler.lambda$startContext$1(PaxWebServletContextHandler.java:258)
~[?:?]
at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.PaxWebServletContextHandler.startContext(PaxWebServletContextHandler.java:252)
~[?:?]
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:916)
~[?:?]
at
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.PaxWebServletContextHandler.doStart(PaxWebServletContextHandler.java:308)
~[?:?]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.JettyServerWrapper.ensureServletContextStarted(JettyServerWrapper.java:2436)
~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.JettyServerWrapper.lambda$visitWebSocketModelChange$20(JettyServerWrapper.java:1929)
~[?:?]
at java.util.ArrayList.forEach(ArrayList.java:1596) ~[?:?]
at
java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1116)
~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.JettyServerWrapper.visitWebSocketModelChange(JettyServerWrapper.java:1914)
~[?:?]
at
org.ops4j.pax.web.service.spi.task.WebSocketModelChange.accept(WebSocketModelChange.java:90)
~[?:?]
at org.ops4j.pax.web.service.spi.task.Batch.accept(Batch.java:430) ~[?:?]
at
org.ops4j.pax.web.service.jetty.internal.JettyServerController.sendBatch(JettyServerController.java:169)
~[?:?]
at
org.ops4j.pax.web.service.internal.HttpServiceEnabled.lambda$doRegisterWebSocket$20(HttpServiceEnabled.java:1968)
~[?:?]
at
org.ops4j.pax.web.service.spi.model.ServerModel.lambda$run$2(ServerModel.java:541)
~[?:?]
at
java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
~[?:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
~[?:?]
at java.lang.Thread.run(Thread.java:1583) [?:?]
--
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