With the newly released version 141.v3a_5c7ded79ee of this plugin, our Jenkins jobs that call stash/unstash (handled by the Artifact Manager on S3 plugin) started occasionally failing with the below error.

It is not always reproducible but I think it might be related to this issue: https://github.com/aws/aws-sdk-java-v2/issues/4386

09:01:58  Also:   org.jenkinsci.plugins.workflow.actions.ErrorAction$ErrorId: 53e7dbc4-e1e7-4ff8-b69d-808e1d9b44d7
09:01:58  java.lang.IllegalStateException: Connection pool shut down
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.util.Asserts.check(Asserts.java:34)
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.impl.conn.PoolingHttpClientConnectionManager.requestConnection(PoolingHttpClientConnectionManager.java:269)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.internal.conn.ClientConnectionManagerFactory$DelegatingHttpClientConnectionManager.requestConnection(ClientConnectionManagerFactory.java:75)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.internal.conn.ClientConnectionManagerFactory$InstrumentedHttpClientConnectionManager.requestConnection(ClientConnectionManagerFactory.java:57)
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:176)
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
09:01:58      at PluginClassLoader for apache-httpcomponents-client-4-api//org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.internal.impl.ApacheSdkHttpClient.execute(ApacheSdkHttpClient.java:72)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.ApacheHttpClient.execute(ApacheHttpClient.java:254)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.ApacheHttpClient.access$500(ApacheHttpClient.java:104)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.ApacheHttpClient$1.call(ApacheHttpClient.java:231)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.http.apache.ApacheHttpClient$1.call(ApacheHttpClient.java:228)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.util.MetricUtils.measureDurationUnsafe(MetricUtils.java:102)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.MakeHttpRequestStage.executeHttpRequest(MakeHttpRequestStage.java:79)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.MakeHttpRequestStage.execute(MakeHttpRequestStage.java:57)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.MakeHttpRequestStage.execute(MakeHttpRequestStage.java:40)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallAttemptTimeoutTrackingStage.execute(ApiCallAttemptTimeoutTrackingStage.java:74)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallAttemptTimeoutTrackingStage.execute(ApiCallAttemptTimeoutTrackingStage.java:43)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.TimeoutExceptionHandlingStage.execute(TimeoutExceptionHandlingStage.java:79)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.TimeoutExceptionHandlingStage.execute(TimeoutExceptionHandlingStage.java:41)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallAttemptMetricCollectionStage.execute(ApiCallAttemptMetricCollectionStage.java:55)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallAttemptMetricCollectionStage.execute(ApiCallAttemptMetricCollectionStage.java:39)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage2.executeRequest(RetryableStage2.java:93)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage2.execute(RetryableStage2.java:56)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage2.execute(RetryableStage2.java:36)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.StreamManagingStage.execute(StreamManagingStage.java:53)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.StreamManagingStage.execute(StreamManagingStage.java:35)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallTimeoutTrackingStage.executeWithTimer(ApiCallTimeoutTrackingStage.java:82)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallTimeoutTrackingStage.execute(ApiCallTimeoutTrackingStage.java:62)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallTimeoutTrackingStage.execute(ApiCallTimeoutTrackingStage.java:43)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallMetricCollectionStage.execute(ApiCallMetricCollectionStage.java:50)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallMetricCollectionStage.execute(ApiCallMetricCollectionStage.java:32)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ExecutionFailureExceptionReportingStage.execute(ExecutionFailureExceptionReportingStage.java:37)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.pipeline.stages.ExecutionFailureExceptionReportingStage.execute(ExecutionFailureExceptionReportingStage.java:26)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.http.AmazonSyncHttpClient$RequestExecutionBuilderImpl.execute(AmazonSyncHttpClient.java:210)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.invoke(BaseSyncClientHandler.java:103)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.doExecute(BaseSyncClientHandler.java:173)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.lambda$execute$1(BaseSyncClientHandler.java:80)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.measureApiCallSuccess(BaseSyncClientHandler.java:182)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.execute(BaseSyncClientHandler.java:74)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.core.client.handler.SdkSyncClientHandler.execute(SdkSyncClientHandler.java:45)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.awscore.client.handler.AwsSyncClientHandler.execute(AwsSyncClientHandler.java:53)
09:01:58      at PluginClassLoader for aws-java-sdk2-sts//software.amazon.awssdk.services.sts.DefaultStsClient.assumeRoleWithWebIdentity(DefaultStsClient.java:755)
09:01:58      at PluginClassLoader for aws-java-sdk2-sts//software.amazon.awssdk.services.sts.auth.StsAssumeRoleWithWebIdentityCredentialsProvider.getUpdatedCredentials(StsAssumeRoleWithWebIdentityCredentialsProvider.java:76)
09:01:58      at PluginClassLoader for aws-java-sdk2-sts//software.amazon.awssdk.services.sts.auth.StsCredentialsProvider.updateSessionCredentials(StsCredentialsProvider.java:93)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.utils.cache.CachedSupplier.lambda$jitteredPrefetchValueSupplier$8(CachedSupplier.java:300)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.utils.cache.CachedSupplier$PrefetchStrategy.fetch(CachedSupplier.java:448)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.utils.cache.CachedSupplier.refreshCache(CachedSupplier.java:208)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.utils.cache.CachedSupplier.get(CachedSupplier.java:135)
09:01:58      at PluginClassLoader for aws-java-sdk2-sts//software.amazon.awssdk.services.sts.auth.StsCredentialsProvider.resolveCredentials(StsCredentialsProvider.java:106)
09:01:58      at PluginClassLoader for aws-java-sdk2-sts//software.amazon.awssdk.services.sts.internal.StsWebIdentityCredentialsProviderFactory$StsWebIdentityCredentialsProvider.resolveCredentials(StsWebIdentityCredentialsProviderFactory.java:109)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.auth.credentials.WebIdentityTokenFileCredentialsProvider.resolveCredentials(WebIdentityTokenFileCredentialsProvider.java:141)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.auth.credentials.AwsCredentialsProvider.resolveIdentity(AwsCredentialsProvider.java:54)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.identity.spi.IdentityProvider.resolveIdentity(IdentityProvider.java:60)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.auth.credentials.AwsCredentialsProviderChain.resolveCredentials(AwsCredentialsProviderChain.java:103)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.auth.credentials.internal.LazyAwsCredentialsProvider.resolveCredentials(LazyAwsCredentialsProvider.java:45)
09:01:58      at PluginClassLoader for aws-java-sdk2-core//software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider.resolveCredentials(DefaultCredentialsProvider.java:129)
09:01:58      at PluginClassLoader for aws-global-configuration//io.jenkins.plugins.aws.global_configuration.CredentialsAwsGlobalConfiguration.sessionCredentialsFromInstanceProfile(CredentialsAwsGlobalConfiguration.java:188)
09:01:58      at PluginClassLoader for aws-global-configuration//io.jenkins.plugins.aws.global_configuration.CredentialsAwsGlobalConfiguration.sessionCredentials(CredentialsAwsGlobalConfiguration.java:220)
09:01:58      at PluginClassLoader for aws-global-configuration//io.jenkins.plugins.aws.global_configuration.CredentialsAwsGlobalConfiguration.sessionCredentials(CredentialsAwsGlobalConfiguration.java:203)
09:01:58      at PluginClassLoader for artifact-manager-s3//io.jenkins.plugins.artifact_manager_jclouds.s3.S3BlobStore.getCredentialsSupplier(S3BlobStore.java:168)
09:01:58      at PluginClassLoader for artifact-manager-s3//io.jenkins.plugins.artifact_manager_jclouds.s3.S3BlobStore.getContext(S3BlobStore.java:129)
09:01:58      at PluginClassLoader for artifact-manager-s3//io.jenkins.plugins.artifact_manager_jclouds.JCloudsArtifactManager.getContext(JCloudsArtifactManager.java:384)
09:01:58      at PluginClassLoader for artifact-manager-s3//io.jenkins.plugins.artifact_manager_jclouds.JCloudsArtifactManager.stash(JCloudsArtifactManager.java:223)
09:01:58      at PluginClassLoader for workflow-api//org.jenkinsci.plugins.workflow.flow.StashManager.stash(StashManager.java:118)
09:01:58      at PluginClassLoader for workflow-basic-steps//org.jenkinsci.plugins.workflow.support.steps.stash.StashStep$Execution.run(StashStep.java:119)
09:01:58      at PluginClassLoader for workflow-basic-steps//org.jenkinsci.plugins.workflow.support.steps.stash.StashStep$Execution.run(StashStep.java:107)
09:01:58      at PluginClassLoader for workflow-step-api//org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
09:01:58      at PluginClassLoader for opentelemetry-api//io.opentelemetry.context.Context.lambda$wrap$1(Context.java:241)
09:01:58      at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
09:01:58      at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
09:01:58      at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
09:01:58      at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
09:01:58      at java.base/java.lang.Thread.run(Unknown Source)