Closes #4038: Don't assume that ContentProviderClient is AutoCloseable

        }

    }

    @Suppress("Recycle")

    @Suppress("Recycle", "ComplexMethod")

    private fun queryForAccount(context: Context, packageName: String): ShareableAccount? {

        // assuming a certain formatting for all authorities from all sources

        val authority = "$packageName.fxa.auth"

        val client = context.contentResolver.acquireContentProviderClient(authority) ?: return null

        return client.use {

        // We don't use `.use` below because in older versions of Android (5, 6), ContentProviderClient

        // does not implement an AutoCloseable interface. This won't be caught at compile time, but

        // at runtime we'll get hit `IncompatibleClassChangeError` exception.

        // See https://github.com/mozilla-mobile/android-components/issues/4038.

        return try {

            val authAuthorityUri = Uri.parse("content://$authority")

            val authStateUri = Uri.withAppendedPath(authAuthorityUri, "state")

            it.query(

            client.query(

                authStateUri,

                arrayOf(KEY_EMAIL, KEY_SESSION_TOKEN, KEY_KSYNC, KEY_KXSCS),

                null, null, null

                    null

                }

            }

        } finally {

            // 'close' was added in API24. For earlier API versions, we need to use 'release'.

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {

                client.close()

            } else {

                @Suppress("deprecation")

                client.release()

            }

        }

    }