try {
Runtime rt = Runtime.getRuntime();
String executeCmd = "mysqldump.exe -u " + dbUser + " -p " + dbPass;
executeCmd += " --all-databases > " + savePath;
System.out.println(executeCmd);
Process proc = rt.exec(executeCmd);
InputStream stderr = proc.getErrorStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line = null;
System.out.println("<ERROR>");
while ( (line = br.readLine()) != null)
    System.out.println(line);
System.out.println("</ERROR>");
int exitVal = proc.waitFor();
System.out.println("Process exitValue: " + exitVal);
}
    catch (Throwable t) {
    t.printStackTrace();
}

String executeCmd = "mysqldump.exe -u " + dbUser + " -p " + dbPass;
executeCmd += " --all-databases > " + savePath;

String executeCmd = "mysqldump.exe -u " + dbUser + " -p" + dbPass+" dbName -r " + savePath;