Router: Fix NPE on bad share bandwidth config (ticket #1524)

router/java/src/net/i2p/router/Router.java

@@ -357,6 +357,8 @@ public class Router implements RouterClock.ClockShiftListener {
      */
     private void startupStuff() {
         // *********  Start no threads before here ********* //
+        _log = _context.logManager().getLog(Router.class);
+
         //
         // NOW we can start the ping file thread.
         if (!SystemVersion.isAndroid())
@@ -391,8 +393,8 @@ public class Router implements RouterClock.ClockShiftListener {
 
         _routerInfo = null;
         _higherVersionSeen = false;
-        _log = _context.logManager().getLog(Router.class);
-        _log.info("New router created with config file " + _configFilename);
+        if (_log.shouldLog(Log.INFO))
+            _log.info("New router created with config file " + _configFilename);
         _oomListener = new OOMListener(_context);
 
         _shutdownHook = new ShutdownHook(_context);