# HG changeset patch
# User dfuchs
# Date 1381140562 -7200
# Node ID 3de6d912bc22f8dcbecf843284e0e8da7ff72955
# Parent  97c4591b09c54e650f0befb5f106700404c5f927
8024867: Enhance logging start up
Reviewed-by: mchung, hawtin

diff -r 97c4591b09c5 -r 3de6d912bc22 src/share/classes/java/util/logging/LogManager.java
--- a/src/share/classes/java/util/logging/LogManager.java	Thu Sep 19 20:56:20 2013 +0400
+++ b/src/share/classes/java/util/logging/LogManager.java	Mon Oct 07 12:09:22 2013 +0200
@@ -248,6 +248,11 @@
      * retrieved by calling Logmanager.getLogManager.
      */
     protected LogManager() {
+        this(checkSubclassPermissions());
+    }
+
+    private LogManager(Void checked) {
+
         // Add a shutdown hook to close the global handlers.
         try {
             Runtime.getRuntime().addShutdownHook(new Cleaner());
@@ -257,6 +262,19 @@
         }
     }
 
+    private static Void checkSubclassPermissions() {
+        final SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            // These permission will be checked in the LogManager constructor,
+            // in order to register the Cleaner() thread as a shutdown hook.
+            // Check them here to avoid the penalty of constructing the object
+            // etc...
+            sm.checkPermission(new RuntimePermission("shutdownHooks"));
+            sm.checkPermission(new RuntimePermission("setContextClassLoader"));
+        }
+        return null;
+    }
+
     /**
      * Return the global LogManager object.
      */