JAL-3446 proper call for headless state

diff --git a/src/jalview/util/Platform.java b/src/jalview/util/Platform.java
index c8f2fc4..c068acc 100644 (file)
--- a/src/jalview/util/Platform.java
+++ b/src/jalview/util/Platform.java
@@ -22,6 +22,7 @@ package jalview.util;
 
 import java.awt.Component;
 import java.awt.Dimension;
+import java.awt.GraphicsEnvironment;
 import java.awt.Toolkit;
 import java.awt.event.KeyEvent;
 import java.awt.event.MouseEvent;
@@ -75,8 +76,6 @@ public class Platform
   private static Boolean isNoJSMac = null, isNoJSWin = null, isMac = null,
           isWin = null;
 
-  private static Boolean isHeadless = null;
-
   private static swingjs.api.JSUtilI jsutil;
 
   static
@@ -96,7 +95,6 @@ public class Platform
       }
     }
   }
-  // private static Boolean isHeadless = null;
 
   /**
    * added to group mouse events into Windows and nonWindows (mac, unix, linux)
@@ -116,7 +114,7 @@ public class Platform
 
   static
   {
-    if (!Jalview.isHeadlessMode())
+    if (!GraphicsEnvironment.isHeadless())
     {
       // Using non-deprecated Extended key mask modifiers, but Java 8 has no
       // getMenuShortcutKeyMaskEx method
@@ -203,18 +201,6 @@ public class Platform
     return (isNoJSWin == null ? (isNoJSWin = !isJS && isWin()) : isNoJSWin);
   }
 
-  /**
-   *
-   * @return true if we are running in non-interactive no UI mode
-   */
-  public static boolean isHeadless()
-  {
-    if (isHeadless == null)
-    {
-      isHeadless = "true".equals(System.getProperty("java.awt.headless"));
-    }
-    return isHeadless;
-  }
 
   /**
    *