Hi. Sometimes this exception occurs after I edit the CSS. Developed with Eclipse (Checked Build Automatically) + Tomcat.
2022-04-09 19:28:48.252 | ERROR | [ModificationWatcher Task] | org.apache.wicket.util.thread.Task | Unhandled exception thrown by user code in task ModificationWatcher java.lang.NullPointerException: null at org.apache.wicket.util.io.Connections.close(Connections.java:133) ~[wicket-util-8.14.0.jar:8.14.0] at org.apache.wicket.core.util.resource.UrlResourceStream.updateContentLength(UrlResourceStream.java:247) ~[wicket-core-8.14.0.jar:8.14.0] at org.apache.wicket.core.util.resource.UrlResourceStream.lastModifiedTime(UrlResourceStream.java:224) ~[wicket-core-8.14.0.jar:8.14.0] at org.apache.wicket.markup.MarkupResourceStream.lastModifiedTime(MarkupResourceStream.java:148) ~[wicket-core-8.14.0.jar:8.14.0] at org.apache.wicket.util.watch.ModificationWatcher.checkModified(ModificationWatcher.java:157) ~[wicket-util-8.14.0.jar:8.14.0] at org.apache.wicket.util.watch.ModificationWatcher$1.run(ModificationWatcher.java:143) ~[wicket-util-8.14.0.jar:8.14.0] at org.apache.wicket.util.thread.Task$1.run(Task.java:116) [wicket-util-8.14.0.jar:8.14.0] at java.lang.Thread.run(Thread.java:829) [?:?] connection.getInputStream() returns null. https://github.com/apache/wicket/blob/wicket-8.x/wicket-util/src/main/java/org/apache/wicket/util/io/Connections.java#L133 Should wicket check null here? Or is there a problem with the null return situation itself? (Is it a problem other than wicket? Eclipse build?) Has anyone had the same problem? If anyone knows of a workaround, please let me know. Regards, Ryo Tsunoda.
