8327924: Simplify TrayIconScalingTest.java

Backport-of: 1496b5de9004c6a9e43ead5f6e9e88362028a7cc

test/jdk/java/awt/TrayIcon/TrayIconScalingTest.java

@@ -85,28 +85,27 @@ public class TrayIconScalingTest {
             System.out.println("SystemTray is not supported");
             return;
         }
-        PassFailJFrame passFailJFrame = PassFailJFrame.builder()
+
+        createAndShowTrayIcon();
+
+        try {
+            PassFailJFrame.builder()
                     .title("TrayIcon Test Instructions")
                     .instructions(INSTRUCTIONS)
                     .testTimeOut(8)
                     .rows(25)
                     .columns(70)
                     .screenCapture()
-                .build();
-
-        createAndShowGUI();
-        // does not have a test window,
-        // hence only the instruction frame is positioned
-        PassFailJFrame.positionTestWindow(null,
-                PassFailJFrame.Position.HORIZONTAL);
-        try {
-            passFailJFrame.awaitAndCheck();
+                    .build()
+                    .awaitAndCheck();
         } finally {
+            if (tray != null) {
                 tray.remove(icon);
             }
         }
+    }
 
-    private static void createAndShowGUI() {
+    private static void createAndShowTrayIcon() {
         ArrayList<Image> imageList = new ArrayList<>();
         for (int size = 16; size <= 48; size += 4) {
             imageList.add(createIcon(size));
@@ -120,7 +119,7 @@ public class TrayIconScalingTest {
         try {
             tray.add(icon);
         } catch (AWTException e) {
-            throw new RuntimeException("Error while adding icon to system tray");
+            throw new RuntimeException("Error while adding icon to system tray", e);
         }
     }