update to xz-java-1.10 for further testing (see also fe7238c01809);
enforce fresh build of Isabelle/Scala and Isabelle/ML;

--- a/Admin/components/main	Thu Dec 19 15:13:33 2024 +0100
+++ b/Admin/components/main	Sat Dec 21 13:27:20 2024 +0100
@@ -39,7 +39,7 @@
 verit-2021.06.2-rmx-1
 vscode_extension-20241002
 vscodium-1.70.1
-xz-java-1.9
+xz-java-1.10
 z3-4.4.0pre-4
 zipperposition-2.1-1
 zstd-jni-1.5.6-8

--- a/src/Pure/ROOT.ML	Thu Dec 19 15:13:33 2024 +0100
+++ b/src/Pure/ROOT.ML	Sat Dec 21 13:27:20 2024 +0100
@@ -1,6 +1,6 @@
 (*  Title:      Pure/ROOT.ML
     Author:     Makarius
-    UUID:       f8791cc7-32d7-44a6-8a15-e6a7f849fd2c
+    UUID:       b5c84e7e-c43b-4cf5-9644-a1f387b61ab4
 
 Main entry point for the Isabelle/Pure bootstrap process.
 

--- a/src/Pure/ROOT.scala	Thu Dec 19 15:13:33 2024 +0100
+++ b/src/Pure/ROOT.scala	Sat Dec 21 13:27:20 2024 +0100
@@ -1,6 +1,6 @@
 /*  Title:      Pure/ROOT.scala
     Author:     Makarius
-    UUID:       d4ac0ad0-9374-4722-b755-018dd6dd0e3b
+    UUID:       b5c84e7e-c43b-4cf5-9644-a1f387b61ab4
 
 Root of isabelle package.
 */