Exception in thread "main" java.lang.InternalError: java.lang.NullPointerException: MyValue2 is an inline class
at java.base/java.lang.invoke.ValueBootstrapMethods.isSubstitutable0(ValueBootstrapMethods.java:555)
at Test.main(Test.java:37)
Caused by: java.lang.NullPointerException: MyValue2 is an inline class
at java.base/java.lang.Class.cast(Class.java:3730)
at java.base/java.lang.invoke.ValueBootstrapMethods.isSubstitutable0(ValueBootstrapMethods.java:551)
... 1 more

The reproducible test case is at: https://bugs.openjdk.java.net/secure/attachment/85600/Test.java