Fix a NPE in PIA if the caller has no requested permissions.

import android.os.Process;

import android.util.Log;

import androidx.annotation.Nullable;

import androidx.annotation.NonNull;

import java.io.IOException;

import java.util.Arrays;

        }

    }

    @Nullable

    @NonNull

    private String[] getRequestedPermissions(String callingPackage) {

        String[] requestedPermissions = null;

        try {

            // Should be unreachable because we've just fetched the packageName above.

            Log.e(TAG, "Package not found for " + callingPackage);

        }

        return requestedPermissions;

        return requestedPermissions == null ? new String[]{} : requestedPermissions;

    }

    void startUnarchive() {