如何在Java项目(Eclipse或其他项目)中重命名1000个类名?

I have a Java project organized using Eclipse in linux. I want to migrate this project to Windows. But there are so many java files with only case differences in names, like AM.java, am.java, Am.java, aM.java. These four files cannot exist together in one directory under Windows. So I need to rename these files in linux before migration. like:I have a Java project organized using Eclipse i