diff --git a/app/helpers/shixuns_helper.rb b/app/helpers/shixuns_helper.rb
index 9e1a3ef40..74c1a0510 100644
--- a/app/helpers/shixuns_helper.rb
+++ b/app/helpers/shixuns_helper.rb
@@ -128,6 +128,7 @@ module ShixunsHelper
 			shixun.challenges.map(&:exec_path).each do |exec_path|
 				challenge_program_name << "\"#{exec_path}\""
 				logger.info("----mirror_name: #{shixun.main_mirror_name.try(:first)}")
+				logger.info("----mirror_name1: #{shixun.main_mirror_name.try(:first) == "Java"}")
 				if shixun.main_mirror_name.try(:first) == "Java"
 					if exec_path.nil? || exec_path.split("src/")[1].nil?
 						source = "\"\""