Move arrive and wait after thread sleep and detailed logging

core-java-modules/core-java-concurrency-advanced/src/main/java/com/baeldung/concurrent/phaser/LongRunningAction.java

@@ -16,12 +16,17 @@ class LongRunningAction implements Runnable {
     public void run() {
         System.out.println("This is phase " + ph.getPhase());
         System.out.println("Thread " + threadName + " before long running action");
-        ph.arriveAndAwaitAdvance();
+        
         try {
-            Thread.sleep(20);
+            Thread.sleep(2000);
         } catch (InterruptedException e) {
             e.printStackTrace();
         }
+        
+        System.out.println("Thread " + threadName + " action completed and waiting for others");
+        ph.arriveAndAwaitAdvance();
+        System.out.println("Thread " + threadName + " proceeding in phase " + ph.getPhase());
+        
         ph.arriveAndDeregister();
     }
 }

core-java-modules/core-java-concurrency-advanced/src/test/java/com/baeldung/concurrent/phaser/PhaserUnitTest.java

@@ -26,13 +26,20 @@ public class PhaserUnitTest {
         executorService.submit(new LongRunningAction("thread-3", ph));
 
         //then
+        System.out.println("Thread " + Thread.currentThread().getName() + " waiting for others");
         ph.arriveAndAwaitAdvance();
+        System.out.println("Thread " + Thread.currentThread().getName() + " proceeding in phase " + ph.getPhase());
+        
         assertEquals(1, ph.getPhase());
 
         //and
         executorService.submit(new LongRunningAction("thread-4", ph));
         executorService.submit(new LongRunningAction("thread-5", ph));
+        
+        System.out.println("Thread " + Thread.currentThread().getName() + " waiting for others");
         ph.arriveAndAwaitAdvance();
+        System.out.println("Thread " + Thread.currentThread().getName() + " proceeding in phase " + ph.getPhase());
+        
         assertEquals(2, ph.getPhase());