Warning about application instance has been already stopped

[mshabarov]

I get the following stacktrace in the server logs, when I start the application from main:

2023-12-14T09:03:42.741+02:00  INFO 12375 --- [onPool-worker-3] o.a.c.loader.WebappClassLoaderBase       : Illegal access: this web application instance has been stopped already. Could not load [META-INF/frontend/buttonFunctions.js]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.

java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [META-INF/frontend/buttonFunctions.js]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
        at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1373) ~[tomcat-embed-core-10.1.16.jar:10.1.16]
        at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:971) ~[tomcat-embed-core-10.1.16.jar:10.1.16]
        at com.vaadin.flow.server.frontend.scanner.ClassFinder$DefaultClassFinder.getResource(ClassFinder.java:105) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.scanner.ClassFinder$CachedClassFinder.getResource(ClassFinder.java:159) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.getResource(AbstractUpdateImports.java:348) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.hasMetaInfResource(AbstractUpdateImports.java:775) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.resolveResource(AbstractUpdateImports.java:444) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.lambda$resolveModules$4(AbstractUpdateImports.java:374) ~[flow-server-24.3.0.jar:24.3.0]
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na]
        at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na]
        at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na]
        at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na]
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na]
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na]
        at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[na:na]
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
        at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.resolveModules(AbstractUpdateImports.java:375) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.mergeJavascript(AbstractUpdateImports.java:477) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.getMergedJavascript(AbstractUpdateImports.java:173) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.AbstractUpdateImports.run(AbstractUpdateImports.java:137) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.TaskUpdateImports.execute(TaskUpdateImports.java:75) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.flow.server.frontend.NodeTasks.execute(NodeTasks.java:342) ~[flow-server-24.3.0.jar:24.3.0]
        at com.vaadin.base.devserver.startup.DevModeInitializer.runNodeTasks(DevModeInitializer.java:354) ~[vaadin-dev-server-24.3.0.jar:na]
        at com.vaadin.base.devserver.startup.DevModeInitializer.lambda$initDevModeHandler$0(DevModeInitializer.java:295) ~[vaadin-dev-server-24.3.0.jar:na]
        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796) ~[na:na]
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[na:na]
        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[na:na]
        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[na:na]
        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[na:na]
        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[na:na]

This shows up only on the first run with mvn and not anymore for further runs.
Doesn't affect the application functionality. Might be related to some threads aren't stopped properly.

Versions:

    <properties>
        <java.version>17</java.version>
        <vaadin.version>24.3.0</vaadin.version>
        <hilla.version>2.5.0.beta1</hilla.version>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.2.0</version>
    </parent>