String forkingProjectId = FORKING_PROJECT_ID.get();
        if (forkingProjectId != null) {
            if (projectId != null) {
                projectId = forkingProjectId + "/" + projectId;
            } else {
                projectId = forkingProjectId;
            }
        }
        if (projectId != null) {
            PROJECT_ID.set(projectId);
            MDC.put(KEY_PROJECT_ID, projectId);
        } else {

        assertThat(ClassUtil.concatName("aaa", null), is("aaa"));
        assertThat(ClassUtil.concatName("aaa", ""), is("aaa"));
        assertThat(ClassUtil.concatName(null, "bbb"), is("bbb"));
        assertThat(ClassUtil.concatName("", "bbb"), is("bbb"));
        assertThat(ClassUtil.concatName("", "bbb"), is("bbb"));
        assertThat(ClassUtil.concatName(null, null), is(nullValue()));

     * Not all sources are backed by files - for example, in-memory sources
     * or database-backed sources will return null.
     *
     * @return the underlying {@code Path} if this source is file-backed,
     *         or {@code null} if this source has no associated file
     */
    @Nullable
    Path getPath();

    /**
     * Creates a new input stream to read the source contents.

      |--123--
      |
      """.trimMargin().replace("\n", "\r\n")
    val body =
      MultipartBody
        .Builder("123")
        .addPart("Quick".toRequestBody(null))
        .addPart("Brown".toRequestBody(null))
        .addPart("Fox".toRequestBody(null))
        .build()
    assertThat(body.boundary).isEqualTo("123")
    assertThat(body.type).isEqualTo(MultipartBody.MIXED)
    assertThat(body.contentType().toString())

        assertEquals("test-document.pdf", result.getContent());
    }

    /**
     * Test extraction with null parameters map.
     */
    public void test_getText_withNullParams() {
        final InputStream in = new ByteArrayInputStream(new byte[0]);

        final ExtractData result = filenameExtractor.getText(in, null);

        assertNotNull(result);
        assertEquals("", result.getContent());
    }

    /**

     */
    @Override
    public CommonServerMessageBlockRequest split() {
        final ServerMessageBlock2Request<?> n = getNext();
        if (n != null) {
            setNext(null);
            n.clearFlags(SMB2_FLAGS_RELATED_OPERATIONS);
        }
        return n;
    }

    /**
     * Sets the next request in the compound chain.
     *

                return KILOBYTE;
            } else {
                return BYTE;
            }
        }
    }

    public String format(long size) {
        return format(size, null);
    }

    public String format(long size, ScaleUnit unit) {
        return format(size, unit, false);
    }

    public String format(long size, ScaleUnit unit, boolean omitSymbol) {

     */
    protected static String getPattern(final String messageCode) {
        if (isEmpty(messageCode)) {
            return null;
        }
        final ResourceBundle resourceBundle = getResourceBundle(getSystemName(messageCode));
        if (resourceBundle == null) {
            return null;
        }

        final int length = messageCode.length();
        if (length > CODE_NUMBER_LENGTH) {

     * If this method returns <code>null</code> the <code>SmbAuthException</code> that triggered the authenticator check will
     * simply be rethrown. The default implementation returns <code>null</code>.
     * @return the authentication credentials or null if none available
     */
    protected NtlmPasswordAuthenticator getNtlmPasswordAuthentication() {
        return null;
    }

    public MetadataRetrievalException(String message) {
        this(message, null, null);
    }

    public MetadataRetrievalException(Throwable cause) {
        this(null, cause, null);
    }

    public MetadataRetrievalException(String message, Throwable cause) {
        this(message, cause, null);
    }

    public MetadataRetrievalException(String message, Throwable cause, ArtifactMetadata artifact) {