--- old/test/langtools/tools/javac/diags/examples/PreviewFeatureUse.java	2018-12-11 11:16:37.640333000 -0800
+++ new/test/langtools/tools/javac/diags/examples/PreviewFeatureUse.java	2018-12-11 11:16:37.468247000 -0800
@@ -25,7 +25,7 @@
 //key: compiler.warn.preview.feature.use.plural
 //key: compiler.misc.feature.diamond
 //key: compiler.misc.feature.lambda
-//options: -Xlint:preview -XDforcePreview -source 12 --enable-preview
+//options: -Xlint:preview -XDforcePreview -source 13 --enable-preview
 
 import java.util.ArrayList;