Proper run() Method for 1.8.8

public void run() {
      try {
         if(this.init()) {
            this.ab = az();
            this.r.setMOTD(new ChatComponentText(this.motd));
            this.r.setServerInfo(new ServerData("1.8.8", 47));
            this.a(this.r);
            Arrays.fill(this.recentTps, 20.0D);
            long start = System.nanoTime();
            long lastTick = start - 50000000L;
            long catchupTime = 0L;

            for(long tickSection = start; this.isRunning; this.Q = true) {
               long curTime = System.nanoTime();
               long wait = 50000000L - (curTime - lastTick);
               if(wait > 0L) {
                  if((double)catchupTime < 2000000.0D) {
                     wait += Math.abs(catchupTime);
                  } else if(wait < catchupTime) {
                     catchupTime -= wait;
                     wait = 0L;
                  } else {
                     wait -= catchupTime;
                     catchupTime = 0L;
                  }
               }

               if(wait > 0L) {
                  Thread.sleep(wait / 1000000L);
                  curTime = System.nanoTime();
                  wait = 50000000L - (curTime - lastTick);
               }

               catchupTime = Math.min(60000000000L, catchupTime - wait);
               if(++currentTick % 20 == 0) {
                  long diff = curTime - tickSection;
                  double currentTps = 1.0E9D / (double)diff * 20.0D;
                  this.tps1.add(currentTps, diff);
                  this.tps5.add(currentTps, diff);
                  this.tps15.add(currentTps, diff);
                  this.recentTps[0] = this.tps1.getAverage();
                  this.recentTps[1] = this.tps5.getAverage();
                  this.recentTps[2] = this.tps15.getAverage();
                  tickSection = curTime;
               }

               lastTick = curTime;
               this.A();
            }
         } else {
            this.a((CrashReport)null);
         }
      } catch (Throwable var82) {
         LOGGER.error("Encountered an unexpected exception", var82);
         if(var82.getCause() != null) {
            LOGGER.error("\tCause of unexpected exception was", var82.getCause());
         }

         CrashReport crashreport = null;
         if(var82 instanceof ReportedException) {
            crashreport = this.b(((ReportedException)var82).a());
         } else {
            crashreport = this.b(new CrashReport("Exception in server tick loop", var82));
         }

         File file = new File(new File(this.y(), "crash-reports"), "crash-" + (new SimpleDateFormat("yyyy-MM-dd_HH.mm.ss")).format(new Date()) + "-server.txt");
         if(crashreport.a(file)) {
            LOGGER.error("This crash report has been saved to: " + file.getAbsolutePath());
         } else {
            LOGGER.error("We were unable to save this crash report to disk.");
         }

         this.a(crashreport);
      } finally {
         try {
            WatchdogThread.doStop();
            this.isStopped = true;
            this.stop();
         } catch (Throwable var80) {
            LOGGER.error("Exception stopping the server", var80);
         } finally {
            try {
               this.reader.getTerminal().restore();
            } catch (Exception var79) {
               ;
            }

            this.z();
         }

      }

   }