How to get File Permission Mode programmatically in Java

As commented previously, android.os.FileUtils has changed and the solution posted by Ashraf no longer works. The following method should work on all versions of Android (although it does use reflection and if a manufacturer made major changes this may not work).

bash

public static void chmod(String path, int mode) throws Exception {
    Class<?> libcore = Class.forName("libcore.io.Libcore");
    Field field = libcore.getDeclaredField("os");
    if (!field.isAccessible()) {
        field.setAccessible(true);
    }
    Object os = field.get(field);
    Method chmod = os.getClass().getMethod("chmod", String.class, int.class);
    chmod.invoke(os, path, mode);
}

Obviously you will need to own the file to make any permission changes.