Hi, using `find **/src -type f -exec grep -i "copyright" {} \; -print | sort -u`, many apache header format issues can be found..
e.g., 1. showTTLPlan.java 2. all files for QueryMetricUI function... 3. All scala files are using /** so the blank space is two chars while it is one char in all java files. 4. there are two blank spaces between "#" and content in all Python files while it is one blank space in all sh files. I do not vote -1 but at least we need to fix these issues in next release. Best, ----------------------------------- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院