How to zip a folder in Selenium java

In order to share the generated selenium webdriver reports to team or clients ,we have to zip the results folder.
In this post, I will explain how can we compress generated automation reports into a zip file using java.
find the below sample code for the same.
Sample Code:
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZIPFile {

List<String> filesListInDir = new ArrayList<String>();

//Method for ZIP folder to specific Directory
public void zipDirectory(File dir, String zipDirName) {
try {
populateFilesList(dir);
//now ZIP files one by one
//create ZipOutputStream to write to the ZIP file
FileOutputStream fos = new FileOutputStream(zipDirName);
ZipOutputStream zos = new ZipOutputStream(fos);

for(String filePath : filesListInDir){
//For ZipEntry we need to keep only relative file path, so we used substring on absolute path
ZipEntry ze = new ZipEntry(filePath.substring(dir.getAbsolutePath().length()+1, filePath.length()));
zos.putNextEntry(ze);
//Read the file and write to ZipOutputStream
FileInputStream fis = new FileInputStream(filePath);
byte[] buffer = new byte[1024];
int len;
while ((len = fis.read(buffer)) > 0) {
zos.write(buffer, 0, len);
}

zos.closeEntry();
fis.close();
}
zos.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}

//This method populates all the files in a directory to a List
public void populateFilesList(File dir) throws IOException {
File[] files = dir.listFiles();
for(File file : files){
if(file.isFile()) filesListInDir.add(file.getAbsolutePath());
else populateFilesList(file);
}
}

//Usage
public static void main(String[] args) throws InterruptedException{
ZIPFile zip = new ZIPFile();
File filename = new File("E:/WorkSpace/Practice/test-output");
zip.zipDirectory(filename, "AutomationReports.zip");
System.out.println("Zipping of AutomationReports successfully");

}


}