ADDITIONAL SYSTEM INFORMATION :
Have the problem on Windows and OSX

A DESCRIPTION OF THE PROBLEM :
A webstart application that has the possibility to start offline doesn't start and throws exception when the computer is offline.

REGRESSION : Last worked in version 8u162

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create webstart application with <offline-allowed/> in jnlp descriptor. Install the application. Turn computer offline. Start application

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Application should start
ACTUAL -
Unable to launch the application.

Exception :
java.net.UnknownHostException: www.xyxyxyxyx.be (fictive domain)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:673)
	at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
	at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
	at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1040)
	at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1038)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1037)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
	at sun.net.www.protocol.http.HttpURLConnection.access$200(HttpURLConnection.java:91)
	at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1484)
	at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1482)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1481)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
	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.getResource(Unknown Source)
	at com.sun.deploy.model.ResourceProvider.getResource(Unknown Source)
	at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResourcesHelper(Unknown Source)
	at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareResources(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(Thread.java:748)
    

CUSTOMER SUBMITTED WORKAROUND :
None found

FREQUENCY : always