public static void setFailuresInARow(int failuresInARow) {
      UnreliableFakeKeyStoreSpi.failuresInARow = failuresInARow;
      failuresLeft = failuresInARow;
    }
A fake KeyStoreSpi implementation that may raise a NullPointerException in engineContainsAlias.

<p>This is added because of b/167402931.
java_src/src/main/java/com/google/crypto/tink/integration/android/internal/FakeAndroidKeystoreProvider.java