Test runner needs to add the SystemOverloadedError label for the pre-handshake network timeout

Author: nhachicha

driver-core/src/test/unit/com/mongodb/internal/connection/AbstractServerDiscoveryAndMonitoringTest.java

@@ -112,6 +112,7 @@ protected void applyApplicationError(final BsonDocument applicationError) {
 
         switch (when) {
             case "beforeHandshakeCompletes":
+                BackpressureErrorLabeler.applyLabelsIfEligible(exception);
                 server.sdamServerDescriptionManager().handleExceptionBeforeHandshake(
                         SdamIssue.of(exception, new SdamIssue.Context(server.serverId(), errorGeneration, maxWireVersion)));
                 break;

driver-core/src/test/unit/com/mongodb/internal/connection/ServerDiscoveryAndMonitoringTest.java

@@ -54,9 +54,6 @@ public class ServerDiscoveryAndMonitoringTest extends AbstractServerDiscoveryAnd
 
     public ServerDiscoveryAndMonitoringTest(final String description, final BsonDocument definition) {
         super(definition);
-        assumeFalse("https://jira.mongodb.org/browse/JAVA-5949",
-                description.equals("error_handling_handshake.json: Network timeouts before and after the handshake completes"));
-
         this.description = description;
         init(serverAddress -> NO_OP_SERVER_LISTENER, NO_OP_CLUSTER_LISTENER);
     }

driver-sync/src/test/functional/com/mongodb/client/unified/UnifiedTestModifications.java

@@ -439,16 +439,6 @@ public static void applyCustomizations(final TestDef def) {
                 .file("server-discovery-and-monitoring", "pool-clear-on-error-checkout");
         def.skipJira("https://jira.mongodb.org/browse/JAVA-5664")
                 .file("server-discovery-and-monitoring", "pool-cleared-on-min-pool-size-population-error");
-        def.skipJira("https://jira.mongodb.org/browse/JAVA-5949")
-                .file("server-discovery-and-monitoring", "backpressure-network-error-fail-single");
-        def.skipJira("https://jira.mongodb.org/browse/JAVA-5949")
-                .file("server-discovery-and-monitoring", "backpressure-network-timeout-error-single");
-        def.skipJira("https://jira.mongodb.org/browse/JAVA-5949")
-                .file("server-discovery-and-monitoring", "backpressure-network-error-fail-replicaset");
-        def.skipJira("https://jira.mongodb.org/browse/JAVA-5949")
-                .file("server-discovery-and-monitoring", "backpressure-network-timeout-error-replicaset");
-        def.skipJira("https://jira.mongodb.org/browse/JAVA-5949")
-                .file("server-discovery-and-monitoring", "backpressure-server-description-unchanged-on-min-pool-size-population-error");
 
         // session tests
         def.skipJira("https://jira.mongodb.org/browse/JAVA-5968")