--- old/test/lib/testlibrary/jdk/testlibrary/Platform.java	2015-11-09 21:03:04.000000000 +0300
+++ new/test/lib/testlibrary/jdk/testlibrary/Platform.java	2015-11-09 21:03:04.000000000 +0300
@@ -58,7 +58,7 @@
     }
 
     public static boolean isTieredSupported() {
-        return compiler.contains("Tiered Compilers");
+        return compiler != null && compiler.contains("Tiered Compilers");
     }