https://bz.apache.org/bugzilla/show_bug.cgi?id=64469
--- Comment #4 from Stefan Bodewig <bode...@apache.org> --- I got this to work when setting the system property polyglot.js.nashorn-compat to true. See https://www.graalvm.org/docs/reference-manual/languages/js/ This is not satisfying, I need to look into what needs to be done in order to avoid that. Aside: at least on Java 8 Ant's own scriptdef test that I disabled for Java 15 with https://github.com/apache/ant/commit/dffd57ca23bcb6e8f40d14a9d1f49d143b2dc8d3 fails as the compiled script on graal.js is slower than the uncompiled version (and significantly so). -- You are receiving this mail because: You are the assignee for the bug.