282   // Competing writers must acquire exclusive access via a lock.

   282   // Competing writers must acquire exclusive access via a lock.

   283   // A losing writer waits on the lock until the winner writes f1 and leaves

   283   // A losing writer waits on the lock until the winner writes f1 and leaves

   284   // the lock, so that when the losing writer returns, he can use the linked

   284   // the lock, so that when the losing writer returns, he can use the linked

   285   // cache entry.

   285   // cache entry.

   286 

   286 

   289   if (!is_f1_null()) {

   288   if (!is_f1_null()) {

   290     return;

   289     return;

   291   }

   290   }

   292 

   291 

   293   const methodHandle adapter = call_info.resolved_method();

   292   const methodHandle adapter = call_info.resolved_method();