throw if we have a null typeface native instance (so we don't crash in native code)

we may still have to native-destroy a Typeface with a null ref, so check for that

1 files changed, 3 insertions, 0 deletions

diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index f0d5a6a..bc92d3a 100644
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -143,6 +143,9 @@ public class Typeface {
 
     // don't allow clients to call this directly
     private Typeface(int ni) {
+        if (0 == ni) {
+            throw new RuntimeException("native typeface cannot be made");
+        }
         native_instance = ni;
     }