minor changes

Author: Rishab87

core/src/processing/core/PApplet.java

@@ -2635,17 +2635,11 @@ protected void handleKeyEvent(KeyEvent event) {
         keyPressed = true;
         keyPressed(keyEvent);
       }
-      case KeyEvent.RELEASE -> {        
-        List<Long> hashesToRemove = new ArrayList<>();
-        for (Long hash : pressedKeys) {
-            int storedKeyCode = (int)(hash >> Character.SIZE);
-            if (storedKeyCode == keyCode) {
-                hashesToRemove.add(hash);
-            }
-        }
-        
-        pressedKeys.removeAll(hashesToRemove);
-
+      case KeyEvent.RELEASE -> {    
+        pressedKeys.removeIf(hash -> {
+          int pressedKeyCode = (int)(hash >> Character.SIZE);
+          return pressedKeyCode == keyCode;
+        });
         keyPressed = !pressedKeys.isEmpty();
         keyReleased(keyEvent);
       }

core/test/processing/core/PAppletKeyEventTest.java

@@ -45,7 +45,7 @@ public void testShiftAndLetterSequence() {
         applet.handleKeyEvent(releaseShift);
 
         Assert.assertFalse("keyPressed should be false after all keys released", applet.keyPressed);
-        Assert.assertEquals("pressedKeys should be empty", true, applet.pressedKeys.isEmpty());
+        Assert.assertTrue("pressedKeys should be empty", applet.pressedKeys.isEmpty());
     }
 
     @Test
@@ -81,7 +81,7 @@ public void testAltAndLetterSequence() {
         applet.handleKeyEvent(releaseAlt);
 
         Assert.assertFalse("keyPressed should be false after all keys released", applet.keyPressed);
-        Assert.assertEquals("pressedKeys should be empty", true, applet.pressedKeys.isEmpty());
+        Assert.assertTrue("pressedKeys should be empty", applet.pressedKeys.isEmpty());
     }
 
     @Test