Thread.dumpStack() circumvents whatever logging is configured and writes

directly to stderr. Logging an exception with the associated warning does the
right thing and logs the stack trace via the logging system.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5318 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/server/net/Connection.java

@@ -166,8 +166,7 @@ public abstract class Connection implements NetEventHandler
     {
         // we shouldn't be closed twice
         if (isClosed()) {
-            log.warning("Attempted to re-close connection " + this + ".");
-            Thread.dumpStack();
+            log.warning("Attempted to re-close connection " + this + ".", new Exception());
             return;
         }
 
@@ -186,8 +185,7 @@ public abstract class Connection implements NetEventHandler
     {
         // if we're already closed, then something is seriously funny
         if (isClosed()) {
-            log.warning("Failure reported on closed connection " + this + ".");
-            Thread.dumpStack();
+            log.warning("Failure reported on closed connection " + this + ".", new Exception());
             return;
         }