Fix executor scope bug

Author: mondain

io/src/main/java/org/red5/codec/HEVCVideo.java

@@ -10,8 +10,6 @@
 import java.util.concurrent.CopyOnWriteArrayList;
 
 import org.apache.mina.core.buffer.IoBuffer;
-import org.red5.io.IoConstants;
-import org.red5.util.ByteNibbler;
 
 /**
  * Red5 video codec for the HEVC (h265) video format. Stores DecoderConfigurationRecord and last keyframe.

server/src/main/java/org/red5/server/tomcat/TomcatLoader.java

@@ -205,8 +205,7 @@ public void afterPropertiesSet() throws Exception {
         // if we are not awaiting plugins, start immediately
         if (awaitPlugins) {
             log.info("Awaiting plugin loading");
-            executor = Executors.newVirtualThreadPerTaskExecutor();
-            executor.submit(() -> {
+            Executors.newVirtualThreadPerTaskExecutor().submit(() -> {
                 Thread.currentThread().setName("TomcatLoader-delayed-start");
                 try {
                     // wait for plugins to load but only up to 60 seconds
@@ -955,9 +954,6 @@ public void destroy() throws Exception {
             deployer.stop();
             deployer = null;
         }
-        if (executor != null) {
-            executor.shutdown();
-        }
         // run through the applications and ensure that spring is told to commence shutdown / disposal
         AbstractApplicationContext absCtx = (AbstractApplicationContext) LoaderBase.getApplicationContext();
         if (absCtx != null) {