--- old/test/langtools/tools/javac/diags/examples/IncompatibleTypesInSwitchExpression.java	2018-12-05 13:51:58.502244813 -0800
+++ new/test/langtools/tools/javac/diags/examples/IncompatibleTypesInSwitchExpression.java	2018-12-05 13:51:58.314338806 -0800
@@ -26,7 +26,7 @@
 // key: compiler.misc.inconvertible.types
 // key: compiler.note.preview.filename
 // key: compiler.note.preview.recompile
-// options: --enable-preview -source 12
+// options: --enable-preview -source 13
 
 
 class IncompatibleTypesInSwitchExpression {