VertxClientEngineTest fails on Windows CI frequently

2021-04-08T17:55:47.7273988Z [INFO] -------------------------------------------------------
2021-04-08T17:55:47.7277008Z [INFO]  T E S T S
2021-04-08T17:55:47.7287078Z [INFO] -------------------------------------------------------
2021-04-08T17:55:48.2633844Z [INFO] Running org.jboss.resteasy.test.client.vertx.InputStreamAdapterTest
2021-04-08T17:55:49.1053938Z [INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.826 s - in org.jboss.resteasy.test.client.vertx.InputStreamAdapterTest
2021-04-08T17:55:49.1057317Z [INFO] Running org.jboss.resteasy.test.client.vertx.VertxClientEngineTest
2021-04-08T17:55:56.3004890Z [ERROR] Tests run: 12, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 7.204 s <<< FAILURE! - in org.jboss.resteasy.test.client.vertx.VertxClientEngineTest
2021-04-08T17:55:56.3035113Z [ERROR] testSimpleStringRx(org.jboss.resteasy.test.client.vertx.VertxClientEngineTest)  Time elapsed: 0.15 s  <<< ERROR!
2021-04-08T17:55:56.3038056Z java.util.concurrent.ExecutionException: java.lang.IllegalStateException
2021-04-08T17:55:56.3054718Z    at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395)
2021-04-08T17:55:56.3057436Z    at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999)
2021-04-08T17:55:56.3061135Z    at org.jboss.resteasy.test.client.vertx.VertxClientEngineTest.testSimpleStringRx(VertxClientEngineTest.java:156)
2021-04-08T17:55:56.3064326Z    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2021-04-08T17:55:56.3066661Z    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2021-04-08T17:55:56.3069345Z    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2021-04-08T17:55:56.3071805Z    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
2021-04-08T17:55:56.3081769Z    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
2021-04-08T17:55:56.3084403Z    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
2021-04-08T17:55:56.3093750Z    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
2021-04-08T17:55:56.3100349Z    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
2021-04-08T17:55:56.3103212Z    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
2021-04-08T17:55:56.3106065Z    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
2021-04-08T17:55:56.3107877Z    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
2021-04-08T17:55:56.3109731Z    at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
2021-04-08T17:55:56.3111511Z    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
2021-04-08T17:55:56.3115552Z    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
2021-04-08T17:55:56.3118883Z    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
2021-04-08T17:55:56.3120599Z    at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
2021-04-08T17:55:56.3121756Z    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
2021-04-08T17:55:56.3124071Z    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
2021-04-08T17:55:56.3126169Z    at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
2021-04-08T17:55:56.3128062Z    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
2021-04-08T17:55:56.3129254Z    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
2021-04-08T17:55:56.3131289Z    at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
2021-04-08T17:55:56.3133696Z    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
2021-04-08T17:55:56.3136275Z    at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
2021-04-08T17:55:56.3140661Z    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
2021-04-08T17:55:56.3149472Z    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
2021-04-08T17:55:56.3152562Z    at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:383)
2021-04-08T17:55:56.3156449Z    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:344)
2021-04-08T17:55:56.3159889Z    at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:125)
2021-04-08T17:55:56.3162360Z    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:417)
2021-04-08T17:55:56.3163964Z Caused by: java.lang.IllegalStateException
2021-04-08T17:55:56.3166003Z    at io.vertx.core.http.impl.HttpClientResponseImpl.checkEnded(HttpClientResponseImpl.java:150)
2021-04-08T17:55:56.3169272Z    at io.vertx.core.http.impl.HttpClientResponseImpl.handler(HttpClientResponseImpl.java:158)
2021-04-08T17:55:56.3172316Z    at io.vertx.core.http.impl.HttpClientResponseImpl.handler(HttpClientResponseImpl.java:38)
2021-04-08T17:55:56.3184268Z    at org.jboss.resteasy.client.jaxrs.engines.vertx.InputStreamAdapter.<init>(InputStreamAdapter.java:28)
2021-04-08T17:55:56.3188337Z    at org.jboss.resteasy.client.jaxrs.engines.vertx.VertxClientHttpEngine.toRestEasyResponse(VertxClientHttpEngine.java:236)
2021-04-08T17:55:56.3193951Z    at org.jboss.resteasy.client.jaxrs.engines.vertx.VertxClientHttpEngine.lambda$submit$7(VertxClientHttpEngine.java:152)
2021-04-08T17:55:56.3196795Z    at io.vertx.core.impl.future.Mapping.onSuccess(Mapping.java:35)
2021-04-08T17:55:56.3198488Z    at io.vertx.core.impl.future.FutureBase.lambda$emitSuccess$0(FutureBase.java:54)
2021-04-08T17:55:56.3201301Z    at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
2021-04-08T17:55:56.3205056Z    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
2021-04-08T17:55:56.3207411Z    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
2021-04-08T17:55:56.3209416Z    at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
2021-04-08T17:55:56.3211653Z    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
2021-04-08T17:55:56.3214029Z    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
2021-04-08T17:55:56.3217442Z    at java.base/java.lang.Thread.run(Thread.java:834)
2021-04-08T17:55:56.3218293Z 
2021-04-08T17:55:56.7247710Z [INFO] 
2021-04-08T17:55:56.7267053Z [INFO] Results:
2021-04-08T17:55:56.7267727Z [INFO] 
2021-04-08T17:55:56.7268735Z [ERROR] Errors: 
2021-04-08T17:55:56.7270350Z [ERROR]   VertxClientEngineTest.testSimpleStringRx:156 � Execution java.lang.IllegalStat...
2021-04-08T17:55:56.7273288Z [INFO] 
2021-04-08T17:55:56.7274720Z [ERROR] Tests run: 18, Failures: 0, Errors: 1, Skipped: 0
2021-04-08T17:55:56.7275631Z [INFO] 
2021-04-08T17:55:56.7282773Z [INFO]