do not use virtual threads when a SecurityManager is set

When running with a SecurityManager set, virtual threads have no permissions (https://openjdk.org/jeps/444).
=> Virtual threads must not be used otherwise AccessControlExceptions will be raised during file manipulations.

09:50:57,825 |-ERROR in c.q.l.core.rolling.TimeBasedRollingPolicy@1645547422 - Unexpected exception while waiting for compression job to finish java.util.concurrent.ExecutionException: java.security.AccessControlException: access denied ("java.io.FilePermission" "/path/to/logs/business.2024-06-12-0949.log8596119935863.tmp" "read")
        at java.util.concurrent.ExecutionException: java.security.AccessControlException: access denied ("java.io.FilePermission" "/path/to/logs/business.2024-06-12-0949.log8596119935863.tmp" "read")
        at      at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at      at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:205)
        at      at ch.qos.logback.core.rolling.TimeBasedRollingPolicy.waitForAsynchronousJobToStop(TimeBasedRollingPolicy.java:140)
        at      at ch.qos.logback.core.rolling.TimeBasedRollingPolicy.stop(TimeBasedRollingPolicy.java:132)
        at      at ch.qos.logback.core.rolling.RollingFileAppender.stop(RollingFileAppender.java:159)
        at      at ch.qos.logback.core.spi.AppenderAttachableImpl.detachAndStopAllAppenders(AppenderAttachableImpl.java:107)
        at      at ch.qos.logback.classic.Logger.detachAndStopAllAppenders(Logger.java:209)
        at      at ch.qos.logback.classic.Logger.recursiveReset(Logger.java:333)
        at      at ch.qos.logback.classic.Logger.recursiveReset(Logger.java:340)
        at      at ch.qos.logback.classic.LoggerContext.reset(LoggerContext.java:363)
        at      at ch.qos.logback.classic.LoggerContext.stop(LoggerContext.java:343)
        at      at org.springframework.boot.logging.logback.LogbackLoggingSystem.lambda$getShutdownHandler$2(LogbackLoggingSystem.java:391)
        at      at java.base/java.lang.Iterable.forEach(Iterable.java:75)
        at      at org.springframework.boot.SpringApplicationShutdownHook.run(SpringApplicationShutdownHook.java:116)
        at      at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.security.AccessControlException: access denied ("java.io.FilePermission" "/path/to/logs/business.2024-06-12-0949.log8596119935863.tmp" "read")
        at      at java.base/java.security.AccessControlContext.checkPermission(AccessControlContext.java:488)
        at      at java.base/java.security.AccessController.checkPermission(AccessController.java:1071)
        at      at java.base/java.lang.SecurityManager.checkPermission(SecurityManager.java:411)
        at      at java.base/java.lang.SecurityManager.checkRead(SecurityManager.java:742)
        at      at java.base/java.io.File.exists(File.java:831)
        at      at ch.qos.logback.core.rolling.helper.Compressor.gzCompress(Compressor.java:148)
        at      at ch.qos.logback.core.rolling.helper.Compressor.compress(Compressor.java:57)
        at      at ch.qos.logback.core.rolling.helper.Compressor$CompressionRunnable.run(Compressor.java:246)
        at      at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
        at      at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
        at      at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at      at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at      at java.base/java.lang.VirtualThread.run(VirtualThread.java:309)

logback-core/src/main/java21/ch/qos/logback/core/util/ExecutorServiceUtil.java

@@ -34,20 +34,28 @@
  * @author Mikhail Mazursky
  */
 public class ExecutorServiceUtil {
+
+    private static final boolean NO_SECURITY_MANAGER = System.getSecurityManager() == null;
+
     private static final ThreadFactory THREAD_FACTORY_FOR_SCHEDULED_EXECUTION_SERVICE = new ThreadFactory() {
 
         private final AtomicInteger threadNumber = new AtomicInteger(1);
 
         private final ThreadFactory defaultFactory = makeThreadFactory();
 
         /**
-         * A thread factory which may be a virtual thread factory the JDK supports it.
+         * A thread factory which may be a virtual thread factory if the JDK supports it
+         * and there is no security manager.
          *
          * @return
          */
         private ThreadFactory makeThreadFactory() {
-            ThreadFactory tf = Thread.ofVirtual().factory();
-            return tf;
+            if (NO_SECURITY_MANAGER) {
+                ThreadFactory tf = Thread.ofVirtual().factory();
+                return tf;
+            }
+
+            return Executors.defaultThreadFactory();
         }
 
         @Override
@@ -99,11 +107,15 @@ static public void shutdown(ExecutorService executorService) {
 
     /**
      * An alternate implementation of {@linl #newThreadPoolExecutor} which returns a virtual thread per task executor
-     * when available.
+     * if the JDK supports it and there is no security manager.
      *
      * @since 1.3.12/1.4.12
      */
     static public ExecutorService newAlternateThreadPoolExecutor() {
-        return Executors.newVirtualThreadPerTaskExecutor();
+        if (NO_SECURITY_MANAGER) {
+            return Executors.newVirtualThreadPerTaskExecutor();
+        }
+
+        return newThreadPoolExecutor();
     }
 }