Unrecognized content type:application/binary exception thrown when connecting via SSL behind a proxy

Issue: Unrecognized content type:application/binary when connecting via SSL 
behind a proxy

I'm retrieving the spreadsheet entries using Java. Using the same source code, 
I was able to perform the action successfully when NOT connected behind a 
proxy. However, when I'm running the same application behind a proxy, I'm 
getting the following error:
com.google.gdata.util.ParseException: Unrecognized content 
type:application/binary

- Source Code Excerpt:
System.setProperty("https.proxyHost", "proxy");
System.setProperty("https.proxyPort", "port");
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, new TrustManager[] { new X509TrustManager() {
  public X509Certificate[] getAcceptedIssuers() {
    return null;
  }

  public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
  }

  public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
  }
} }, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
HttpsURLConnection.setDefaultHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAM
E_VERIFIER);
SpreadsheetService service = new SpreadsheetService(applicationName);
service.setUserCredentials(username, password);
service.setContentType(ContentType.APPLICATION_XML);
service.useSsl();
service.getEntry(new URL(httpsUrlString), SpreadsheetEntry.class);

- Tracing through Google Code:
Service.getEntry(URL, Class<E>) -> .. -> Service.parseResponseData(GDataRequest 
req, Class<E> resultType) -> 
protected ClientInputProperties(GDataRequest req, Class<?> expectType)
        throws IOException, ServiceException {
      super(req);
      this.expectType = expectType;
      this.inputType = req.getResponseContentType(); //-- returns application/binary when connected behind a proxy
      init();
}

- What is the expected output? 
No exception is thrown when 'service.getEntry(new URL(httpsUrlString), 
SpreadsheetEntry.class);' is invoked when connected behind a proxy. 

- What do you see instead? 
com.google.gdata.util.ParseException: Unrecognized content 
type:application/binary

- What version of the product are you using? On what operating system?
com.google.gdata:core:1.47.1
com.google.api.client:google-api-data-spreadsheet-v3:1.0.10-alpha
Windows 7 Enterprise
Java JDK 1.7

Original issue reported on code.google.com by joy.mari...@gmail.com on 21 Jan 2014 at 9:38

SilverHoodCorp / gdata-java-client

Unrecognized content type:application/binary exception thrown when connecting via SSL behind a proxy #443