Merge "Null pointer exception in FileRotator.java"

        final long deleteBefore = currentTimeMillis - mDeleteAgeMillis;

        final FileInfo info = new FileInfo(mPrefix);

        for (String name : mBasePath.list()) {

        String[] baseFiles = mBasePath.list();

        if (baseFiles == null) {

            return;

        }

        for (String name : baseFiles) {

            if (!info.parse(name)) continue;

            if (info.isActive()) {

import java.util.Arrays;

import java.util.Random;

import junit.framework.Assert;

import libcore.io.IoUtils;

import libcore.io.Libcore;

/**

 * Tests for {@link FileRotator}.

        assertReadAll(rotate, "bar");

    }

    public void testFileSystemInaccessible() throws Exception {

        File inaccessibleDir = null;

        String dirPath = getContext().getFilesDir() + File.separator + "inaccessible";

        inaccessibleDir = new File(dirPath);

        final FileRotator rotate = new FileRotator(inaccessibleDir, PREFIX, SECOND_IN_MILLIS, SECOND_IN_MILLIS);

        // rotate should not throw on dir not mkdir-ed (or otherwise inaccessible)

        rotate.maybeRotate(TEST_TIME);

    }

    private void touch(String... names) throws IOException {

        for (String name : names) {

            final OutputStream out = new FileOutputStream(new File(mBasePath, name));