JBR-2630 Typing speed in IDE editor was dropped after switching to 11.0.8

New version of the fix as 0c16f30a caused java.security.AccessControlException on pre-commit.
Priviledged action is now ised to obtain sun.awt.osx.RobotSafeDelayMillis property value.

src/java.desktop/macosx/classes/sun/lwawt/macosx/CRobot.java

@@ -31,10 +31,12 @@ import java.awt.Robot;
 import java.awt.peer.RobotPeer;
 
 import sun.awt.CGraphicsDevice;
+import sun.security.action.GetIntegerAction;
 
 final class CRobot implements RobotPeer {
 
     private static final int MOUSE_LOCATION_UNKNOWN      = -1;
+    private static final int DEFAULT_SAFE_DELAY_MILLIS   = 50;
 
     private final CGraphicsDevice fDevice;
     private int mouseLastX = MOUSE_LOCATION_UNKNOWN;
@@ -51,7 +53,12 @@ final class CRobot implements RobotPeer {
      */
     public CRobot(Robot r, CGraphicsDevice d) {
         fDevice = d;
-        initRobot();
+        int safeDelayMillis = GetIntegerAction.privilegedGetProperty(
+                "sun.awt.osx.RobotSafeDelayMillis", DEFAULT_SAFE_DELAY_MILLIS);
+        if (safeDelayMillis < 0) {
+            safeDelayMillis = DEFAULT_SAFE_DELAY_MILLIS;
+        }
+        initRobot(safeDelayMillis);
     }
 
     @Override
@@ -193,7 +200,7 @@ final class CRobot implements RobotPeer {
         return c;
     }
 
-    private native void initRobot();
+    private native void initRobot(int safeDelayMillis);
     private native void mouseEvent(int lastX, int lastY, int buttonsState,
                                    boolean isButtonsDownState,
                                    boolean isMouseMove);

src/java.desktop/macosx/native/libawt_lwawt/awt/CRobot.m

@@ -68,6 +68,7 @@ static NSTimeInterval gsLastClickTime;
 static int gsEventNumber;
 static int* gsButtonEventNumber;
 static NSTimeInterval gNextKeyEventTime;
+static NSTimeInterval safeDelay;
 
 static inline CGKeyCode GetCGKeyCode(jint javaKeyCode);
 
@@ -104,17 +105,17 @@ static inline void autoDelay(BOOL isMove) {
             [NSThread sleepForTimeInterval:delay];
         }
     }
-    gNextKeyEventTime = [[NSDate date] timeIntervalSinceReferenceDate] + 0.050;
+    gNextKeyEventTime = [[NSDate date] timeIntervalSinceReferenceDate] + safeDelay;
 }
 
 /*
  * Class:     sun_lwawt_macosx_CRobot
  * Method:    initRobot
- * Signature: (V)V
+ * Signature: (I)V
  */
 JNIEXPORT void JNICALL
 Java_sun_lwawt_macosx_CRobot_initRobot
-(JNIEnv *env, jobject peer)
+(JNIEnv *env, jobject peer, jint safeDelayMillis)
 {
     // Set things up to let our app act like a synthetic keyboard and mouse.
     // Always set all states, in case Apple ever changes default behaviors.
@@ -143,6 +144,7 @@ Java_sun_lwawt_macosx_CRobot_initRobot
             gsClickCount = 0;
             gsLastClickTime = 0;
             gNextKeyEventTime = 0;
+            safeDelay = (NSTimeInterval)safeDelayMillis/1000;
             gsEventNumber = ROBOT_EVENT_NUMBER_START;
 
             gsButtonEventNumber = (int*)SAFE_SIZE_ARRAY_ALLOC(malloc, sizeof(int), gNumberOfButtons);