JAL-3446 separated out potential exceptions for simplified key mask operation

diff --git a/src/jalview/util/Platform.java b/src/jalview/util/Platform.java
index 62f618a..bc21fa1 100644 (file)
--- a/src/jalview/util/Platform.java
+++ b/src/jalview/util/Platform.java
@@ -115,24 +115,45 @@ public class Platform
  
   static
   {
-    if (!GraphicsEnvironment.isHeadless())
-    {
+      // Using non-deprecated Extended key mask modifiers, but Java 8 has no
+      // getMenuShortcutKeyMaskEx method
+      Toolkit tk = Toolkit.getDefaultToolkit();
+      Method method = null;
       try
       {
-
-        Toolkit tk = Toolkit.getDefaultToolkit();
-        Method method = tk.getClass().getMethod("getMenuShortcutKeyMaskEx");
-        if (method == null)
+        method = tk.getClass().getMethod("getMenuShortcutKeyMaskEx");
+      } catch (NoSuchMethodException e)
+      {
+        System.err.println(
+                "Could not find Toolkit method getMenuShortcutKeyMaskEx. Trying getMenuShortcutKeyMask.");
+      }
+      if (method == null)
+      {
+        try
+        {
           method = tk.getClass().getMethod("getMenuShortcutKeyMask");
-        SHORTCUT_KEY_MASK = ((int) method.invoke(tk, new Object[0]));
-        if (SHORTCUT_KEY_MASK <= 0xF)
+        } catch (NoSuchMethodException e)
         {
-          // shift this into the extended region (was Java 8)
-          SHORTCUT_KEY_MASK = SHORTCUT_KEY_MASK << 6;
+          System.err.println(
+                  "Could not find Toolkit method getMenuShortcutKeyMaskEx or getMenuShortcutKeyMask.");
+          e.printStackTrace();
         }
-      } catch (Exception e)
+      }
+      if (method != null)
       {
-        e.printStackTrace();
+        try
+        {
+          method.setAccessible(true);
+          SHORTCUT_KEY_MASK = ((int) method.invoke(tk, new Object[0]));
+        } catch (Exception e)
+        {
+          e.printStackTrace();
+        }
+      }
+      if (SHORTCUT_KEY_MASK <= 0xF)
+      {
+        // shift this into the extended region (was Java 8)
+        SHORTCUT_KEY_MASK = SHORTCUT_KEY_MASK << 6;
       }
     }
   }