src/share/classes/java/util/logging/Logger.java

*** 230,239 ****
--- 230,260 ----
       *
       * @return global logger object
       * @since 1.7
       */
      public static final Logger getGlobal() {
+         // In order to break a cyclic dependence between the LogManager
+         // and Logger static initializers causing deadlocks, the global
+         // logger is created with a special constructor that does not
+         // initialize its log manager.
+         //
+         // If an application calls Logger.getGlobal() before any logger
+         // has been initialized, it is therefore possible that the
+         // LogManager class has not been initialized yet, and therefore
+         // Logger.global.manager will be null.
+         //
+         // In order to finish the initialization of the global logger, we
+         // will therefore call LogManager.getLogManager() here.
+         //
+         // Care must be taken *not* to call Logger.getGlobal() in
+         // LogManager static initializers in order to avoid such
+         // deadlocks.
+         //
+         if (global != null && global.manager == null) {
+             // Complete initialization of the global Logger.
+             global.manager = LogManager.getLogManager();
+         }
          return global;
      }
  
      /**
       * The "global" Logger object is provided as a convenience to developers