Update FederationManager.java

Author: bgprudhomme

tools/federation/src/main/java/org/eclipse/rdf4j/federated/FederationManager.java

@@ -92,7 +92,8 @@ public FederationManager() {
 	public void init(FedX federation, FederationContext federationContext) {
 		this.federation = federation;
 		this.federationContext = federationContext;
-		// Refactoring this causes ServicesTest to hang forever
+		// Refactoring this to Executors.newThreadPerTaskExecutor(new NamingThreadFactory("FedX Executor"));
+		// and refactoring NamingThreadFactory to use virtual threads causes ServicesTest to hang forever
 		// (https://github.com/ponder-lab/rdf4j/actions/runs/10239404923/job/28324948852?pr=2)
 		this.executor = Executors.newCachedThreadPool(new NamingThreadFactory("FedX Executor"));