I am uploading a NMU to fix this. The debdiff is attached.
diff -Nru jruby-9.4.6.0+ds/debian/changelog jruby-9.4.6.0+ds/debian/changelog
--- jruby-9.4.6.0+ds/debian/changelog 2024-02-29 00:39:52.000000000 +0000
+++ jruby-9.4.6.0+ds/debian/changelog 2024-04-19 22:06:26.000000000 +0000
@@ -1,3 +1,12 @@
+jruby (9.4.6.0+ds-1.1) unstable; urgency=medium
+
+ * Non-maintainer upload
+
+ [ Gianfranco Costamagna ]
+ * d/control: update libfixposix4 runtime depency (Closes: #1067209)
+
+ -- Bastian Germann <b...@debian.org> Fri, 19 Apr 2024 22:06:26 +0000
+
jruby (9.4.6.0+ds-1) unstable; urgency=medium
* New upstream version 9.4.6.0+ds
diff -Nru jruby-9.4.6.0+ds/debian/control jruby-9.4.6.0+ds/debian/control
--- jruby-9.4.6.0+ds/debian/control 2024-02-29 00:39:52.000000000 +0000
+++ jruby-9.4.6.0+ds/debian/control 2024-04-19 22:05:30.000000000 +0000
@@ -62,7 +62,7 @@
libasm-java (>= 9.5),
libbackport9-java (>= 1.10),
libdirgra-java,
- libfixposix4,
+ libfixposix4t64,
libheadius-options-java (>= 1.4),
libinvokebinder-java (>= 1.13),
libjansi1-java,
