System.Net.Sockets.SocketException: 'A non-blocking socket operation could not be completed immediately'

[crossoft]

I've had this code for 2+ years - with the most recent Windows 10 upgrade (thanks Microsoft) I was getting some odd IKVM errors, so I finally upgraded to the latest IKVM & NHtmlUnit, and now this line below throws the above error.

Task task = Task.Run(() => webClient.GetHtmlPage(uri.ToString()), cts.Token);

Is this a bug in NHtmlUnit?
Thanks!

[crossoft]

Just a little more info; I tried stepping into GetHtmlPage ... a few subsequent errors before it bombs:

java.security.NoSuchAlgorithmException: 'SHA1withECDSA Signature not available'
then -
org.apache.xerces.xni.parser.XMLConfigurationException: 'http://xml.org/sax/features/allow-dtd-events-after-endDTD'
then -
java.net.SocketTimeoutException: 'Read timed out'

[BeeWarloc]

Is this the case when trying to connect any site, or a specific one? Do see any warnings when trying to connect to that site using a recent browser?

I suspect this may have something to do with what versions of SSL/TLS is supported by IKVM or htmlunit, however I don't recall/know any details about this stuff.

I believe your best bet for figuring this out is searching for similar problems related to IKVM or HtmlUnit.

[crossoft]

Hello, it's any site. I feel that something environmental is affected. But I can't drill down far enough to solve it. Occasionally I also get things like

'no sunec in java.library.path'

I just reinstalled the JDK 8 64-bit, just in case, but no change.

I should also mention that I am very unfamiliar with IKVM and Java as a whole, which is probably limiting my ability to diagnose this.

[crossoft]

If this helps, I see these errors when firing up my application.

Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.security.PrivilegedActionException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.io.FileNotFoundException' in IKVM.OpenJDK.Core.dll
Exception thrown: 'java.lang.NoSuchMethodException' in IKVM.OpenJDK.Core.dll
'Agents.Browser.exe' (CLR v4.0.30319: RTMS.Agents.Browser.exe): Loaded 'Browser Agent\build\IKVM.OpenJDK.Text.dll'. Module was built without symbols.
Exception thrown: 'ClassNotFoundException' in IKVM.Runtime.dll
Exception thrown: 'java.lang.ClassNotFoundException' in IKVM.Runtime.dll
'Agents.Browser.exe' (CLR v4.0.30319: RTMS.Agents.Browser.exe): Loaded 'IKVM.OpenJDK.Core-ikvm-runtime-injected'.

[asbjornu]

I wouldn't expect this project to receive an update before IKVM is ported to .NET Core. See #35 for details.