Can't find solution to launch exception

[Silicon_E]

Recently, I have not been able to launch the game on Windows 8. The logo comes up, but then I get a window that reads:

Unable to Launch Application

Java 8.91

Name: Haven and Hearth
Publisher: Seatribe
Location: game.havenandhearth.com

Exception: Unexpected end of file from server

ava.net.SocketException: Unexpected end of file from server
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.access$200(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$9.run(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$9.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessController.doPrivilegedWithCombiner(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.checkUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.isUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getJreResource(Unknown Source)
at com.sun.javaws.LaunchDownload._downloadExtensionsHelper(Unknown Source)
at com.sun.javaws.LaunchDownload.downloadExtensionsHelper(Unknown Source)
at com.sun.javaws.LaunchDownload.downloadExtensions(Unknown Source)
at com.sun.javaws.Launcher.prepareLaunchFile(Unknown Source)
at com.sun.javaws.Launcher.prepareAllResources(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Launch File:
<?xml version="1.0" encoding="utf-8" ?>
<jnlp codebase="http://game.havenandhearth.com/java/" spec="1.0+">
<information>
<title>Haven and Hearth</title>
<vendor>Seatribe</vendor>
<description>The Haven game</description>
<homepage href="http://www.havenandhearth.com/" />
<icon href="icon.gif" />
<icon kind="splash" href="splash.gif" />
</information>
<security>
<all-permissions />
</security>
<resources>
<j2se version="1.8+" max-heap-size="512M" />
<java version="1.8+" max-heap-size="512M" />
<jar href="hafen.jar" />
<extension name="jogl" href="http://game.havenandhearth.com/java/hafen-res.jnlp" />
<extension name="jogl" href="http://game.havenandhearth.com/java/jogl2/jogl-all-awt.jnlp" />
<property name="jnlp.haven.resurl" value="http://game.havenandhearth.com/hres/" />
<property name="jnlp.haven.defserv" value="game.havenandhearth.com" />
<property name="jnlp.haven.authck" value="e2617ddffcdd820c9b2ff7554d0f156cd444b5f5de4bc25e130f990b805d9399" />
<property name="jnlp.haven.errorurl" value="http://game.havenandhearth.com/java/error" />
<property name="jnlp.haven.fullscreen" value="off" />
<property name="jnlp.haven.authuser" value="Silicon_E" />
</resources>
<application-desc />
</jnlp>

[jorb]

Might be some sort of connection problem. Paged loftar.

[MagicManICT]

I know I'm not loftar, but I might have a couple things to try or at least check until he chimes in.

This appears to be a connection issue. You might try verifying your connection is stable by pinging the game server (game.havenandhearth.com) and/or flushing Haven from your Java cache so that it redownloads. An error in a file would cause the same.

I'll also note that there may be a security feature blocking something. I don't think it should be Java as it would prevent the app from even loading, let alone starting and the logo pop up. It may be a 3rd party security program you run or even Windows Defender itself. Make sure Java and Haven can connect to the right servers and allow for use of ports TCP 1871 and UDP 1870.

Loftar may have other suggestions or the actual solution of neither of these work.

[loftar]

ava.net.SocketException: Unexpected end of file from server

Is this the same error you get each time? If so, it's definitely some kind of connectivity error, but I can't really say what. Really unreliable WiFi? Some weird proxy settings?

[Granger]

Strange virus scanner?

[Silicon_E]

Is this the same error you get each time?

I tried launching the game several times from WiFi as well as a wired connection, and each time I got the same error.

Really unreliable WiFi? Some weird proxy settings?

My computer has reliable WiFi and is using the default Windows 8 proxy settings; not using a proxy server.

More Info:
I have successfully launched and played the game more than a few times, and only recently did this problem come up. I also just updated to Java 8.91, which might be borking something. Other than that, all that has changed is the Patch Patch.

[MagicManICT]

I have successfully launched and played the game more than a few times, and only recently did this problem come up. I also just updated to Java 8.91, which might be borking something. Other than that, all that has changed is the Patch Patch.

I never like to recommend that person roll back to an older version of something like Java, but it is worth a try in this case to see if it resolves. Could be a bug in Java itself interacting with something specific to your system. Double check your security settings and such just to be sure, too.

[Silicon_E]

I never like to recommend that person roll back to an older version of something like Java, but it is worth a try in this case to see if it resolves.

Tried reverting to version 7, but I still get the same result.

[Granger]

You might try verifying your connection is stable by pinging the game server (game.havenandhearth.com) and/or flushing Haven from your Java cache so that it redownloads. An error in a file would cause the same.

[loftar]

You might try verifying your connection is stable by pinging the game server (game.havenandhearth.com) and/or flushing Haven from your Java cache so that it redownloads. An error in a file would cause the same.