ClassFile
API Preview PR comment from [~mcimadamore]:

It is not clear to me as to whether all the methods in the API deal with null correctly. What we did for FFM, assuming that the classfile API is also null-hostile by default, was to add a single test which would try to call all API methods and looking for NPEs:

jdk/test/jdk/java/foreign/TestNulls.java
Line 80 in 2637e8d
 public class TestNulls {
This test has saved us many times when adding/changing API methods.


One example is `Utf8Entry.equalsString`, not null-hostile if it's already string-expanded.