diff --git a/openjdk-latest.spec b/openjdk-latest.spec
index c58366cb6b8be6cc9e60b7cc2d4f21072d709817..8b628bfd20ce282a58a9e026a13db00878b31b30 100644
--- a/openjdk-latest.spec
+++ b/openjdk-latest.spec
@@ -1635,8 +1635,10 @@ else
   return
   end
 end
-arg = {"--currentjvm", "%{uniquesuffix %{nil}}", "--jvmdir", "%{_jvmdir %{nil}}", "--origname", "%{name}", "--origjavaver", "%{javaver}", "--arch", "%{_arch}", "--temp", "%{rpm_state_dir}/%{name}.%{_arch}"}
-cjc.mainProgram(arg)
+arg = nil ;  -- it is better to null the arg up, no meter if they exists or not, and use cjc as module in unified way, instead of relaying on "main" method during require "copy_jdk_configs.lua"
+cjc = require "copy_jdk_configs.lua"
+args = {"--currentjvm", "%{uniquesuffix %{nil}}", "--jvmdir", "%{_jvmdir %{nil}}", "--origname", "%{name}", "--origjavaver", "%{javaver}", "--arch", "%{_arch}", "--temp", "%{rpm_state_dir}/%{name}.%{_arch}"}
+cjc.mainProgram(args)
 
 %post
 %{post_script %{nil}}