Android java.io.IOException: write failed: EBADF (Bad file number)

I have read several posts about the EBADF error that does not resolve my issue. What makes my case unique is that I am trying to write to the getFilesDir, that should be writable by the application.

I am getting the EBADF error when executing the encrypt method. The file argument is created using:

new File(mContext.getFilesDir(), "file.dat")

Where is a listing of the encrypt method:

public static void encrypt(File file, String password, List<Object> objects) {

    byte[] salt = generateSalt();
    byte[] iv = generateIV();
    Cipher c = createCipher(password, salt, Cipher.ENCRYPT_MODE, iv);

    try (FileOutputStream fos = new FileOutputStream(file)) {
        fos.write(salt);
        fos.write(iv);
        try (CipherOutputStream cos = new CipherOutputStream(fos, c);
        ObjectOutputStream oos = new ObjectOutputStream(cos)) {
            for (Object o : objects) {
                oos.writeObject(o);
            }
        }

    } catch (FileNotFoundException e) {
        throw new RuntimeException(e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Can anyone see why I am getting the exception?

Here is the exception log:

 Caused by: java.lang.RuntimeException: java.io.IOException: write failed: EBADF (Bad file number)
    at za.co.lot24media.password.util.EncryptUtil.encrypt(EncryptUtil.java:69)
    at za.co.lot24media.password.store.Store.save(Store.java:94)
    at za.co.lot24media.password.store.Store.createSamples(Store.java:179)
    at za.co.lot24media.password.store.Store.load(Store.java:76)
    at za.co.lot24media.password.activity.login.LoginAction$2.doInBackground(LoginAction.java:62)
    at za.co.lot24media.password.activity.login.LoginAction$2.doInBackground(LoginAction.java:55)
    at android.os.AsyncTask$2.call(AsyncTask.java:292)
    at java.util.concurrent.FutureTask.run(FutureTask.java:237)
    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 
    at java.lang.Thread.run(Thread.java:818) 
 Caused by: java.io.IOException: write failed: EBADF (Bad file number)
    at libcore.io.IoBridge.write(IoBridge.java:502)
    at java.io.FileOutputStream.write(FileOutputStream.java:186)
    at java.io.OutputStream.write(OutputStream.java:82)
    at javax.crypto.CipherOutputStream.close(CipherOutputStream.java:129)
    at za.co.lot24media.password.util.EncryptUtil.encrypt(EncryptUtil.java:64)

from Android java.io.IOException: write failed: EBADF (Bad file number)