assertLockHeld()

    if (initialized) {
      return // Already initialized.
    }

    // If a bkp file exists, use it instead.
    if (fileSystem.exists(journalFileBackup)) {
      // If journal file also exists just delete backup file.
      if (fileSystem.exists(journalFile)) {
        fileSystem.delete(journalFileBackup)
      } else {
        fileSystem.atomicMove(journalFileBackup, journalFile)

func (config *TierConfigMgr) Edit(ctx context.Context, tierName string, creds madmin.TierCreds) error {
	config.Lock()
	defer config.Unlock()

	// check if tier by this name exists
	tierType, exists := config.isTierNameInUse(tierName)
	if !exists {
		return errTierNotFound
	}

	cfg := config.Tiers[tierName]
	switch tierType {
	case madmin.S3:
		if creds.AWSRole {
			cfg.S3.AWSRole = true
		}

     * Checks if there is a previous page available.
     *
     * @return true if previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether there is a previous page available.
     *
     * @param existPrePage true if previous page exists, false otherwise
     */
    public void setExistPrePage(final boolean existPrePage) {

        }

        if (outputFile.exists()) {
            if (logger.isDebugEnabled()) {
                logger.debug("The thumbnail file exists: {}", outputFile.getAbsolutePath());
            }
            return true;
        }

        final File parentFile = outputFile.getParentFile();
        if (!parentFile.exists()) {
            parentFile.mkdirs();
        }

        Activation activation = profile.getActivation();

        ActivationFile actFile = activation.getFile();

        if (actFile != null) {
            // check if the file exists, if it does then the profile will be active
            String fileString = actFile.getExists();

            RegexBasedInterpolator interpolator = new RegexBasedInterpolator();
            try {

        Files.createDirectory(existingDir);
        Files.createFile(existingDir.resolve("test.txt"));

        assertTrue(Files.exists(existingDir));
        themeHelper.closeQuietly(existingDir);
        // Directory should be deleted
        assertFalse(Files.exists(existingDir));
    }

    public void test_closeQuietly_nestedDirectory() throws IOException {

	<target name="mydbflute.check">
		<condition property="mydbflute.exists">
			<available file="${mydbflute.dir}" type="dir" />
		</condition>
	</target>

	<target name="download.dbflute" depends="mydbflute.check" unless="mydbflute.exists">
		<mkdir dir="${mydbflute.dir}" />
		<get dest="${target.dir}/mydbflute.zip">
			<url url="${mydbflute.url}" />
		</get>

        // If the maven-wrapper.properties exists, read it and check if it contains a custom
        // wrapperUrl parameter.
        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
        String url = DEFAULT_DOWNLOAD_URL;
        if(mavenWrapperPropertyFile.exists()) {
            FileInputStream mavenWrapperPropertyFileInputStream = null;
            try {

        ArtifactRepository repo = createStringRepo();

        assertThrows(ResourceDoesNotExistException.class, () -> wagonManager.getArtifact(artifact, repo, null, false));

        assertFalse(artifact.getFile().exists());
    }

    @Test
    void testGetMissingJarForced() throws TransferFailedException, UnsupportedProtocolException, IOException {

        emptyDir.mkdirs();
        assertTrue(emptyDir.exists());

        // Simulate the behavior of postVisitDirectory - delete empty directories
        if (emptyDir.isDirectory() && emptyDir.list().length == 0) {
            emptyDir.delete();
        }

        assertFalse(emptyDir.exists());
    }

    // Test FilePurgeVisitor postVisitDirectoryWithException