Fix compilation error with new kotlinc

These code failed with kotlinc v1.3.31. The new compiler is able to
understand Java @NotNull.

Test: build
Change-Id: I7c8c7d4707805feaf4fb142fe78e40c7a53c4a7f

1 files changed, 2 insertions, 2 deletions

diff --git a/packages/SystemUI/tests/src/com/android/keyguard/clock/ViewPreviewerTest.kt b/packages/SystemUI/tests/src/com/android/keyguard/clock/ViewPreviewerTest.kt
index d9ef7fa34883..5ece6ef1a794 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/clock/ViewPreviewerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/keyguard/clock/ViewPreviewerTest.kt
@@ -47,7 +47,7 @@ class ViewPreviewerTest : SysuiTestCase() {
         val width = 100
         val height = 100
         // WHEN a preview image is created
-        val bitmap = previewer.createPreview(view, width, height)
+        val bitmap = previewer.createPreview(view, width, height)!!
         // THEN the bitmap has the expected width and height
         assertThat(bitmap.height).isEqualTo(height)
         assertThat(bitmap.width).isEqualTo(width)
@@ -60,4 +60,4 @@ class ViewPreviewerTest : SysuiTestCase() {
             canvas?.drawColor(Color.RED)
         }
     }
-}
\ No newline at end of file
+}