Hook handling blocks EventLoop by searching for regex matches in a loop

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2024-06-17T16:59:30,636 int houston WARN BlockedThreadChecker - Thread Thread[vert.x-eventloop-thread-1,5,main] has been blocked for 177 ms, time limit is 8 ms
io.vertx.core.VertxException: Thread blocked
        at java.util.regex.Matcher.reset(Matcher.java:406) ~[?:?]
        at java.util.regex.Matcher.<init>(Matcher.java:253) ~[?:?]
        at java.util.regex.Pattern.matcher(Pattern.java:1134) ~[?:?]
        at org.swisspush.gateleen.hook.ListenerRepositoryBase.filter(ListenerRepositoryBase.java:59) ~[gateleen-hook-2.1.8.jar:?]
        at org.swisspush.gateleen.hook.ListenerRepositoryBase.findListeners(ListenerRepositoryBase.java:37) ~[gateleen-hook-2.1.8.jar:?]
        at org.swisspush.gateleen.hook.LocalListenerRepository.findListeners(LocalListenerRepository.java:65) ~[gateleen-hook-2.1.8.jar:?]
        at org.swisspush.gateleen.hook.LocalListenerRepository.findListeners(LocalListenerRepository.java:115) ~[gateleen-hook-2.1.8.jar:?]
        at org.swisspush.gateleen.hook.HookHandler.handle(HookHandler.java:575) ~[gateleen-hook-2.1.8.jar:?]
        at ch.post.it.paisa.houston.process.main.MainVerticle.lambda$createRouter$4(MainVerticle.java:643) ~[houston-process-02.01.63.00.jar:?]
        at ch.post.it.paisa.houston.process.main.MainVerticle$$Lambda$1537/0x0000000840786c40.handle(Unknown Source) ~[?:?]
        at org.swisspush.gateleen.security.authorization.Authorizer.authorize(Authorizer.java:142) ~[gateleen-security-2.1.8.jar:?]
        at ch.post.it.paisa.houston.process.main.MainVerticle.lambda$createRouter$5(MainVerticle.java:606) ~[houston-process-02.01.63.00.jar:?]
        at ch.post.it.paisa.houston.process.main.MainVerticle$$Lambda$1296/0x00000008406fdc40.handle(Unknown Source) ~[?:?]
        at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1285) ~[vertx-web-4.5.1.jar:4.5.1]
        at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:177) ~[vertx-web-4.5.1.jar:4.5.1]
        at io.vertx.ext.web.impl.RoutingContextImpl.next(RoutingContextImpl.java:143) ~[vertx-web-4.5.1.jar:4.5.1]
        at io.vertx.ext.web.impl.RouterImpl.handle(RouterImpl.java:68) ~[vertx-web-4.5.1.jar:4.5.1]
        at io.vertx.ext.web.impl.RouterImpl.handle(RouterImpl.java:37) ~[vertx-web-4.5.1.jar:4.5.1]
        at io.vertx.core.http.impl.Http1xServerRequestHandler.handle(Http1xServerRequestHandler.java:67) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.vertx.core.http.impl.Http1xServerRequestHandler.handle(Http1xServerRequestHandler.java:30) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:335) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.vertx.core.impl.DuplicatedContext.emit(DuplicatedContext.java:176) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.vertx.core.http.impl.Http1xServerConnection.handleMessage(Http1xServerConnection.java:174) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.vertx.core.net.impl.ConnectionBase.read(ConnectionBase.java:159) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.vertx.core.net.impl.VertxHandler.channelRead(VertxHandler.java:153) ~[vertx-core-4.5.1.jar:4.5.1]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:93) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.handler.codec.http.websocketx.extensions.WebSocketServerExtensionHandler.onHttpRequestChannelRead(WebSocketServerExtensionHandler.java:160) ~[netty-codec-http-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.handler.codec.http.websocketx.extensions.WebSocketServerExtensionHandler.channelRead(WebSocketServerExtensionHandler.java:83) ~[netty-codec-http-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:333) ~[netty-codec-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:454) ~[netty-codec-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) ~[netty-codec-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.103.Final.jar:4.1.103.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.103.Final.jar:4.1.103.Final]
        at java.lang.Thread.run(Thread.java:829) ~[?:?]

Update 2024-10-08: Not seen for a while. Maybe this had to do with some GarbageCollecting issues? If so, the error message here is more misleading than helpful.