JRE-366 Add support for Awesome WM

Added detection of Awesome WM and handled similar to Sawfish WM

(cherry picked from commit 6742077ed198975949af567e8ef543f853397351)
(cherry picked from commit 2847be73c6)

src/java.desktop/unix/classes/sun/awt/X11/XWM.java

@@ -109,7 +109,9 @@ final class XWM
         CWM_WM = 14,
         MUTTER_WM = 15,
         UNITY_COMPIZ_WM = 16,
-        XMONAD_WM = 17;
+        XMONAD_WM = 17,
+        AWESOME_WM = 18;
+
     public String toString() {
         switch  (WMID) {
           case NO_WM:
@@ -143,7 +145,9 @@ final class XWM
           case MUTTER_WM:
               return "Mutter";
           case XMONAD_WM:
-              return "Xmonad";
+              return "XMonad";
+          case AWESOME_WM:
+              return "Awesome";
           case UNDETERMINED_WM:
           default:
               return "Undetermined WM";
@@ -613,6 +617,10 @@ final class XWM
         return isNetWMName("xmonad");
     }
 
+    static boolean isAwesome() {
+        return isNetWMName("awesome");
+    }
+
     static int awtWMNonReparenting = -1;
     static boolean isNonReparentingWM() {
         if (awtWMNonReparenting == -1) {
@@ -814,6 +822,8 @@ final class XWM
                 awt_wmgr = XWM.UNITY_COMPIZ_WM;
             } else if (isXmonad()) {
                 awt_wmgr = XWM.XMONAD_WM;
+            } else if (isAwesome()) {
+                awt_wmgr = XWM.AWESOME_WM;
             }
             /*
              * We don't check for legacy WM when we already know that WM
@@ -1138,6 +1148,8 @@ final class XWM
           case XWM.SAWFISH_WM:
           case XWM.ICE_WM:
           case XWM.METACITY_WM:
+          case XWM.XMONAD_WM:
+          case XWM.AWESOME_WM:
               return true;
           case XWM.OPENLOOK_WM:
           case XWM.MOTIF_WM:
@@ -1380,6 +1392,7 @@ final class XWM
               case NO_WM:
               case LG3D_WM:
               case XMONAD_WM:
+              case AWESOME_WM:
                   res = zeroInsets;
                   break;
               case UNITY_COMPIZ_WM:
@@ -1657,7 +1670,9 @@ final class XWM
                       break;
                   }
                   case XWM.SAWFISH_WM:
-                  case XWM.OPENLOOK_WM: {
+                  case XWM.OPENLOOK_WM:
+                  case XWM.AWESOME_WM:
+                      {
                       /* single reparenting */
                       syncTopLevelPos(window, lwinAttr);
                       correctWM.top    = lwinAttr.get_y();

src/java.desktop/unix/classes/sun/awt/X11/XWindowPeer.java

@@ -777,6 +777,7 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
                 case XWM.MUTTER_WM:
                 case XWM.SAWFISH_WM:
                 case XWM.UNITY_COMPIZ_WM:
+                case XWM.AWESOME_WM:
                 {
                     Point xlocation = queryXLocation();
                     if (log.isLoggable(PlatformLogger.Level.FINE)) {