diff -r 9cff5368d25a src/java.base/share/classes/jdk/internal/module/ModuleInfoExtender.java
--- a/src/java.base/share/classes/jdk/internal/module/ModuleInfoExtender.java	Wed Mar 25 07:58:17 2020 +0100
+++ b/src/java.base/share/classes/jdk/internal/module/ModuleInfoExtender.java	Wed Mar 25 15:00:12 2020 +0000
@@ -167,7 +167,9 @@
 
                 // ModulePackages attribute
                 if (packages != null) {
-                    packages.forEach(pn -> mv.visitPackage(pn.replace('.', '/')));
+                    packages.stream()
+                            .sorted()
+                            .forEach(pn -> mv.visitPackage(pn.replace('.', '/')));
                 }
 
                 return new ModuleVisitor(Opcodes.ASM7, mv) {