IssueTracker

Problem:

The attached document contains the wrong tag: `<title />` which prevents annotation to happen.
I am using annotateText with Document.Type.HTML
The JSON response (AnnotateTextResponse printed to json) I get doesn't contain neither any valuable information nor error status code.

What you expected to happen:

either error status code if malformed HTML was detected,
or different from 200 HTTP Response Status code,
or a meaningful exception from thrown by `google-cloud-language` library.

Steps to reproduce:

1. place the attached document to GS bucket
2. create Document as:

    try (LanguageServiceClient language = LanguageServiceClient.create()) {

            Document.Builder docBuilder = Document.newBuilder();
            docBuilder.setGcsContentUri(gcsUrl); // <-- gs url of your file
            docBuilder.setType(Document.Type.HTML);
            Document doc = docBuilder.build();

            AnnotateTextRequest request = AnnotateTextRequest.newBuilder()
                    .setDocument(doc)
                    .setFeatures(AnnotateTextRequest.Features.newBuilder()
                            .setClassifyText(true)
                            .setExtractEntities(true)
                            .setExtractEntitySentiment(true)
                            .setExtractDocumentSentiment(true)
                            .setExtractSyntax(true)
                            .build())
                    .build();

            AnnotateTextResponse annotateTextResponse = language.annotateText(request);

            String json = JsonFormat.printer().print(annotateTextResponse)
    } catch (Exception e) {
            // process as you need
    }
3. check json - nothing helps to detect that something went wrong
4. Remove from the attached document line with `<title />` tag and repeat step 2.
5. check json again - it contains annotation results.

pom dependency:
        <dependency>
            <groupId>com.google.cloud</groupId>
            <artifactId>google-cloud-language</artifactId>
            <version>1.99.0</version>
        </dependency>

Other information (workarounds you have tried, documentation consulted, etc):