Hi Tim, On Sun, 12 Jun 2022 at 20:32, Tim Perry <tim.v...@gmail.com> wrote: > I've run into an issue where javac 11+ will emit valid java 8 code for > functions that weren't added to Java until after java 8. When the code is > run on Java 8 runtime errors appear complaining about functions missing > from classes that are part of the JRE. Most recently I ran into this when I > used java.lang.String@strip() in a library cross-compiled to java 8 > bytecode with Java 11 javac.
Are you sure that the library was compiled with `--release 8` and not with `-source 8 -target 8`? `String#strip()` does not compile on my JDK 11, as well as `ByteBuffer#position(int)` uses the correct return type of `Buffer` (JRE 8) instead of `ByteBuffer` (JRE 11). Piotr
