remove all MIT copyright notices from files

RemoveHeaders.java

@@ -0,0 +1,71 @@
+/*
+  Remove the copy right header from all files inside project.
+*/
+import java.io.IOException;
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.regex.Pattern;
+
+public class RemoveHeaders {
+
+  private static String readEntireFile(String filePath) {
+    String content = "";
+
+    try {
+      content = new String(Files.readAllBytes(Paths.get(filePath)));
+    }
+    catch (IOException e) {
+      e.printStackTrace();
+    }
+
+    return content;
+  }
+
+  private static void saveFileToDisk(String filePath, String content) {
+    File file = new File(filePath);
+    Path path = Paths.get(filePath);
+
+    try (FileWriter writer = new FileWriter(file)) {
+      if (Files.isWritable(path) && !Files.isSymbolicLink(path) && !Files.isHidden(path)) {
+        writer.write(content);
+        writer.flush();
+      }
+    } catch (IOException e) {
+      e.printStackTrace();
+    }
+  }
+
+  private static String removeMatchingText(String content, Pattern pattern) {
+    return pattern.matcher(content).replaceAll("");
+  }
+
+  public static void recursivelyGetFilesAndRemoveHeaders(String path) {
+    Pattern copyrightHeader = Pattern.compile("(?i)/\\*(?:\r?\n|\r) ?\\*.*?Copyright[\\S\\s]*?\\*/");
+    File currentDirectory = new File(path);
+    File[] files = currentDirectory.listFiles();
+
+    if (files == null) {
+        return;
+    }
+
+    for (File file : files) {
+      if (file.isDirectory()) {
+        recursivelyGetFilesAndRemoveHeaders(file.getAbsolutePath());
+      } else {
+        String filePath = file.getAbsolutePath();
+        String fileContents = readEntireFile(filePath);
+        String updatedContents = removeMatchingText(fileContents, copyrightHeader);
+        if (fileContents != updatedContents) {
+          saveFileToDisk(filePath, updatedContents);
+        }
+      }
+    }
+  }
+
+  public static void main(String args[]) {
+    String rootPath = System.getProperty("user.dir");
+    recursivelyGetFilesAndRemoveHeaders(rootPath);
+  }
+}