Intermittent OS4JException: Unable to retrieve current session

Saw this in https://github.com/apache/camel-quarkus/pull/4865 [integration-tests-alternative-jdk on Java 17](https://github.com/apache/camel-quarkus/actions/runs/4846813564/jobs/8636750771?pr=4865)

Let's see if it happens again.

```
2023-05-01 01:06:11,819 ERROR [io.qua.ver.htt.run.QuarkusErrorHandler] (executor-thread-1) HTTP Request to /openstack/keystone/regions/getShouldSucceed failed, error id: 88412fdc-72f7-44dd-9928-a9b32eda3756-1: org.jboss.resteasy.spi.UnhandledException: org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[]
at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:105)
at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:359)
at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:218)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:519)
at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:261)
at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:161)
at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364)
at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:164)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:247)
at io.quarkus.resteasy.runtime.standalone.RequestDispatcher.service(RequestDispatcher.java:73)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.dispatch(VertxRequestHandler.java:151)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler$1.run(VertxRequestHandler.java:91)
at io.quarkus.vertx.core.runtime.VertxCoreRecorder$14.runWith(VertxCoreRecorder.java:576)
at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2449)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1452)
at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:29)
at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:29)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[]
at org.apache.camel.CamelExecutionException.wrapCamelExecutionException(CamelExecutionException.java:45)
at org.apache.camel.support.ExchangeHelper.extractResultBody(ExchangeHelper.java:667)
at org.apache.camel.impl.engine.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:591)
at org.apache.camel.impl.engine.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:587)
at org.apache.camel.impl.engine.DefaultProducerTemplate.requestBodyAndHeader(DefaultProducerTemplate.java:431)
at org.apache.camel.quarkus.component.openstack.it.OpenstackKeystoneRegionResource.getShouldSucceed(OpenstackKeystoneRegionResource.java:75)
at org.apache.camel.quarkus.component.openstack.it.OpenstackKeystoneRegionResource_ClientProxy.getShouldSucceed(Unknown Source)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:170)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:130)
at org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:660)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:524)
at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$2(ResourceMethodInvoker.java:474)
at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:476)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:434)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:408)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:69)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:492)
... 15 more
Caused by: org.openstack4j.api.exceptions.OS4JException: Unable to retrieve current session. Please verify thread has a current session available.
at org.openstack4j.openstack.internal.BaseOpenStackService.builder(BaseOpenStackService.java:106)
at org.openstack4j.openstack.internal.BaseOpenStackService.builder(BaseOpenStackService.java:100)
at org.openstack4j.openstack.internal.BaseOpenStackService.get(BaseOpenStackService.java:46)
at org.openstack4j.openstack.identity.v3.internal.RegionServiceImpl.get(RegionServiceImpl.java:36)
at org.apache.camel.component.openstack.keystone.producer.RegionProducer.doGet(RegionProducer.java:73)
at org.apache.camel.component.openstack.keystone.producer.RegionProducer.process(RegionProducer.java:48)
at org.apache.camel.support.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:66)
at org.apache.camel.impl.engine.SharedCamelInternalProcessor.process(SharedCamelInternalProcessor.java:214)
at org.apache.camel.impl.engine.SharedCamelInternalProcessor$1.process(SharedCamelInternalProcessor.java:111)
at org.apache.camel.impl.engine.DefaultAsyncProcessorAwaitManager.process(DefaultAsyncProcessorAwaitManager.java:83)
at org.apache.camel.impl.engine.SharedCamelInternalProcessor.process(SharedCamelInternalProcessor.java:108)
at org.apache.camel.support.cache.DefaultProducerCache.send(DefaultProducerCache.java:199)
at org.apache.camel.impl.engine.DefaultProducerTemplate.send(DefaultProducerTemplate.java:176)
at org.apache.camel.impl.engine.DefaultProducerTemplate.send(DefaultProducerTemplate.java:172)
at org.apache.camel.impl.engine.DefaultProducerTemplate.requestBodyAndHeader(DefaultProducerTemplate.java:429)
... 32 more

Error: Tests run: 6, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.219 s <<< FAILURE! - in org.apache.camel.quarkus.component.openstack.it.OpenstackKeystoneRegionTest
Error: getShouldSucceed Time elapsed: 0.074 s <<< FAILURE!
```

Start by rerunning the integration-tests-alternative-jdk test around OpenstackKeystoneRegionTest.getShouldSucceed and inspect OpenstackKeystoneRegionResource.java at line 75. Determine whether the OS4JException is reproducible on Java 17, then make the test pass reliably without the missing current-session failure.

Written by the indexing model from the issue text.