--- a/test/langtools/tools/javac/diags/examples/NoSwitchExpression.java	Thu Jun 13 18:02:18 2019 +0200
+++ b/test/langtools/tools/javac/diags/examples/NoSwitchExpression.java	Tue Jun 11 16:45:20 2019 -0700
@@ -22,7 +22,7 @@
  */
 
 // key: compiler.err.no.switch.expression
-// options: --enable-preview --source 13
+// options: --enable-preview --source ${jdk.version}
 
 class BreakComplexValueNoSwitchExpressions {
     void t() {