This is probably caused by my change in https://issues.apache.org/jira/browse/WICKET-6963
I have been using this code in production for a couple of weeks now without issues, but there seem to be cases where the singleton strategy doesn't work. Can you reproduce this issue in a test-case? Thomas On Thu, Mar 31, 2022 at 10:06 AM Maxim Solodovnik <solomax...@gmail.com> wrote: > "<wicket:head> tags are only allowed before <body>, </head>, <wicket:panel> > etc. tag" > sounds reasonable :) > > On Thu, 31 Mar 2022 at 14:56, Korbinian Bachl < > korbinian.ba...@whiskyworld.de> wrote: > > > Hi, > > > > I deployed our app on 9.9.0 this morning and after initializing a crawl > of > > the page I ended up getting a low quote of 503s. > > > > The 503s are always the same: > > 2022-03-31 09:35:05,031 ERROR [org.apache.wicket.DefaultExceptionMapper] > > Unexpected error occurred > > org.apache.wicket.markup.MarkupException: <wicket:head> tags are only > > allowed before <body>, </head>, <wicket:panel> etc. tag > > at > > > org.apache.wicket.markup.html.panel.AssociatedMarkupSourcingStrategy.nextHeaderMarkup(AssociatedMarkupSourcingStrategy.java:341) > > ~[wicket-core-9.9.0.jar:9.9.0] > > at > > > org.apache.wicket.markup.html.panel.AssociatedMarkupSourcingStrategy.renderHeadFromAssociatedMarkupFile(AssociatedMarkupSourcingStrategy.java:236) > > ~[wicket-core-9.9.0.jar:9.9.0] > > at > > > org.apache.wicket.markup.html.panel.AssociatedMarkupSourcingStrategy.renderHead(AssociatedMarkupSourcingStrategy.java:204) > > ~[wicket-core-9.9.0.jar:9.9.0] > > at > > org.apache.wicket.Component.internalRenderHead(Component.java:2649) > > ~[wicket-core-9.9.0.jar:9.9.0] > > .... > > at > > > org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:569) > > [nucleus-grizzly-all.jar:?] at > > > org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549) > > [nucleus-grizzly-all.jar:?] at java.lang.Thread.run(Thread.java:829) > [?:?] > > > > Any idea how to debug this or where it may come from (race condition in > > our code as wicket became faster?)? > > It somehow seems to be a happen when requests coming in at the same > > time.... with 9.8.0 we got no such errors. > > > > Best, > > > > KB > > > > > > > > > > -- > Best regards, > Maxim >
