[Add-more-logs] Trying to add more logs specifically for the scheduler and close

Author: Alathreon

JShellAPI/src/main/java/org/togetherjava/jshellapi/service/JShellService.java

@@ -206,6 +206,7 @@ public String id() {
 
     @Override
     public void close() {
+        LOGGER.debug("Close called for session {}.", id);
         try {
             dockerService.killContainerByName(containerName());
             try {

JShellAPI/src/main/java/org/togetherjava/jshellapi/service/JShellSessionService.java

@@ -28,6 +28,7 @@ public class JShellSessionService {
     private void initScheduler() {
         scheduler = Executors.newSingleThreadScheduledExecutor();
         scheduler.scheduleAtFixedRate(() -> {
+            LOGGER.info("Scheduler heartbeat: started.");
             jshellSessions.keySet()
                 .stream()
                 .filter(id -> jshellSessions.get(id).isClosed())
@@ -36,6 +37,7 @@ private void initScheduler() {
                 .stream()
                 .filter(id -> jshellSessions.get(id).shouldDie())
                 .toList();
+            LOGGER.info("Scheduler heartbeat: sessions ready to die: {}", toDie);
             for (String id : toDie) {
                 try {
                     deleteSession(id);
@@ -81,6 +83,7 @@ public JShellService oneTimeSession(@Nullable StartupScriptId startupScriptId)
     }
 
     public void deleteSession(String id) throws DockerException {
+        LOGGER.debug("Soft delete called for session {}.", id);
         JShellService service = jshellSessions.remove(id);
         service.stop();
         scheduler.schedule(service::close, 500, TimeUnit.MILLISECONDS);