--- old/modules/javafx.graphics/src/main/native-glass/mac/GlassView.m	2017-10-13 15:11:12.000000000 +0530
+++ new/modules/javafx.graphics/src/main/native-glass/mac/GlassView.m	2017-10-13 15:11:11.000000000 +0530
@@ -150,6 +150,7 @@
     if (jViewNotifyInputMethodMac == NULL)
     {
         jclass jMacViewClass = [GlassHelper ClassForName:"com.sun.glass.ui.mac.MacView" withEnv:env];
+        if (!jMacViewClass) return;
         jViewNotifyInputMethodMac = (*env)->GetMethodID(env, jMacViewClass, "notifyInputMethodMac", "(Ljava/lang/String;IIIII)V");
         if ((*env)->ExceptionCheck(env)) return;
     }