change: 关闭逻辑调整.

src/main/java/com/serliunx/ddns/support/SystemInitializer.java

@@ -195,6 +195,7 @@ public final class SystemInitializer implements Refreshable, Clearable {
             InstanceContextHolder.setAdditional("stopping");
             log.info("程序正在关闭中, 可能需要一定时间.");
             scheduledThreadPoolExecutor.shutdown();
+            scheduledProvider.close();
             log.info("已关闭.");
             InstanceContextHolder.clearAdditional();
         }, "DDNS-ShutDownHook"));

src/main/java/com/serliunx/ddns/support/ipprovider/ScheduledProvider.java

@@ -17,7 +17,7 @@ import java.util.function.Consumer;
  * @version 1.0.3
  * @since 2024/11/25
  */
-public class ScheduledProvider extends AbstractProvider {
+public class ScheduledProvider extends AbstractProvider implements AutoCloseable {
 
     private final Provider internalProvider;
 
@@ -55,6 +55,11 @@ public class ScheduledProvider extends AbstractProvider {
         this(internalProvider, 60);
     }
 
+    @Override
+    public void close() {
+        poolExecutor.shutdown();
+    }
+
     @Override
     public String get() {
         return internalCache;