import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
@Override
public BackgroundException map(final TokenResponseException failure) {
    final StringBuilder buffer = new StringBuilder();
    final TokenErrorResponse details = failure.getDetails();
    if(null != details) {
        this.append(buffer, details.getErrorDescription());
    }
    return new LoginFailureException(buffer.toString(), failure);
}
 

import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
/**
 * Returns a new instance of {@link LenientTokenResponseException}.
 * <p>
 * If there is a JSON error response, it is parsed using
 * {@link TokenErrorResponse}, which can be inspected using
 * {@link #getDetails()}. Otherwise, the full response content is read and
 * included in the exception message.
 * </p>
 * 
 * @param jsonFactory JSON factory
 * @param readResponse an HTTP response that has already been read
 * @param responseContent the content String of the HTTP response
 * @return new instance of {@link TokenErrorResponse}
 */
public static LenientTokenResponseException from(JsonFactory jsonFactory,
        HttpResponse readResponse, String responseContent) {
    HttpResponseException.Builder builder = new HttpResponseException.Builder(
            readResponse.getStatusCode(), readResponse.getStatusMessage(),
            readResponse.getHeaders());
    // details
    Preconditions.checkNotNull(jsonFactory);
    TokenErrorResponse details = null;
    String detailString = null;
    String contentType = readResponse.getContentType();
    try {
        if (/* !response.isSuccessStatusCode() && */true
                && contentType != null
                && HttpMediaType.equalsIgnoreParameters(Json.MEDIA_TYPE, contentType)) {
            details = readResponse
                    .getRequest()
                    .getParser()
                    .parseAndClose(new StringReader(responseContent), TokenErrorResponse.class);
            detailString = details.toPrettyString();
        } else {
            detailString = responseContent;
        }
    } catch (IOException exception) {
        // it would be bad to throw an exception while throwing an exception
        exception.printStackTrace();
    }
    // message
    StringBuilder message = HttpResponseException.computeMessageBuffer(readResponse);
    if (!com.google.api.client.util.Strings.isNullOrEmpty(detailString)) {
        message.append(StringUtils.LINE_SEPARATOR).append(detailString);
        builder.setContent(detailString);
    }
    builder.setMessage(message.toString());
    return new LenientTokenResponseException(builder, details);
}
 

import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
@Override
public void onTokenErrorResponse(Credential credential, TokenErrorResponse tokenErrorResponse) throws IOException {
    System.out.println("GoogleDrive Token Error: " + tokenErrorResponse.getError());
}
 

import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
@Override
public void onTokenErrorResponse(Credential credential, TokenErrorResponse tokenErrorResponse) throws IOException {
    if (account != null) {
        account.onTokenErrorResponse(credential, tokenErrorResponse);
    }
}
 

import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
/**
 * @param builder builder
 * @param details token error response details or {@code null} if unable to
 *            parse
 */
LenientTokenResponseException(Builder builder, TokenErrorResponse details) {
    super(builder);
    this.details = details;
}
 

import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
/**
 * Returns the token error response details or {@code null} if unable to
 * parse.
 */
public final TokenErrorResponse getDetails() {
    return details;
}
 

import com.google.api.client.auth.oauth2.TokenErrorResponse; //导入依赖的package包/类
/**
 * Build errors.
 *
 * @param rsp the rsp
 *
 * @return the errors
 */
private static Errors buildErrors(TokenErrorResponse rsp) {
  Errors e = new Errors();
  e.set( rsp.getError(), rsp.getErrorDescription() );
  return e;
}