return false;
        }

        return process(thumbnailId, responseData -> {
            final String mimeType = responseData.getMimeType();
            final String extension = getExtensionFromMimeType(mimeType);
            final File tempFile = ComponentUtil.getSystemHelper().createTempFile("thumbnail_", extension);
            try {
                CopyUtil.copy(responseData.getResponseBody(), tempFile);

    }

    // Tests for null and empty input
    @Test
    public void test_getExtensionFromMimeType_null() {
        assertEquals("", generator.getExtensionFromMimeType(null));
    }

    @Test
    public void test_getExtensionFromMimeType_empty() {
        assertEquals("", generator.getExtensionFromMimeType(""));
    }