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JNLP "Access Denied" URL

Posted on 2007-04-10
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Last Modified: 2008-01-09
I have a java app that makes a connection to a webserver. It requests a .jar file that contains 1 file.  The URL is as follows: jar://myserver/test.jar!/fact_list.txt . This works fine when it is run as an application. HOwever, when I try to run it as a .jnlp file I encounter a error:
java.security.AccessControlException: access denied (java.net.SocketPermission 199.43.2.201:8080 connect,resolve)
      at java.security.AccessControlContext.checkPermission(Unknown Source)
      at java.security.AccessController.checkPermission(Unknown Source)
      at java.lang.SecurityManager.checkPermission(Unknown Source)
      at java.lang.SecurityManager.checkConnect(Unknown Source)
      at sun.net.www.http.HttpClient.openServer(Unknown Source)
      at sun.net.www.http.HttpClient.<init>(Unknown Source)
      at sun.net.www.http.HttpClient.New(Unknown Source)
      at sun.net.www.http.HttpClient.New(Unknown Source)
      at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
      at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
      at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
      at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
      at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
      at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
      at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
      at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
      at sun.net.www.protocol.jar.JarURLConnection.getInputStream(Unknown Source)
      at fdw.EditorLookUpSettings.loadVendors(EditorLookUpSettings.java:28)
      at fdw.DefineRatio.<init>(DefineRatio.java:24)
      at visualcomponents.FDW_Application.main(FDW_Application.java:14)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at com.sun.javaws.Launcher.executeApplication(Unknown Source)
      at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
      at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
      at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
      at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
      at com.sun.javaws.Launcher.run(Unknown Source)
      at java.lang.Thread.run(Unknown Source)

I have not signed the .jar file that contains my application. I didn't think I needed to sign it because it is trying to access the same server from which it was downloaded. Any ideas on what I am missing?

Anthony
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Question by:anthony0007
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Expert Comment

by:CEHJ
ID: 18884657
Is the server redirecting?
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Author Comment

by:anthony0007
ID: 18884670
No, it works fine when I run it as an application.
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Expert Comment

by:CEHJ
ID: 18884694
Well redirects would be followed OK  by an application. Is that address public so we can test it?
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Author Comment

by:anthony0007
ID: 18884894
Sorry, its not. I will need to see my administrator to find a public server. However, I don't think it is a redirecting issue. I notice that the address I am accessing is http://199.43.2.201:8080/fdw/test.html and the address in the  exception is the same:

java.security.AccessControlException: access denied (java.net.SocketPermission 199.43.2.201:8080 connect,resolve)
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LVL 86

Expert Comment

by:CEHJ
ID: 18884942
What is the actual jnlp file url?
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Accepted Solution

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objects earned 500 total points
ID: 18885742
try changing the url to use the same hostname and port as the jnlp was loaded with.
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Author Comment

by:anthony0007
ID: 18900862
yep, that worked. thanks!
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LVL 86

Expert Comment

by:CEHJ
ID: 18902151
>>yep, that worked. thanks!

I thought you said you were already doing that? (see below)

>>because it is trying to access the same server from which it was downloaded
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