SPNEGO - GSSManger.createContext() -> 'Operation unavailable'
SPNEGO - when I try this with Java version "1.6.0-rc", I end up with a GSSException with the message "Operation unavailable". How do I get more information about what this exactly means?
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Specifically, I have a string starting with -
YIIGPwYGKwYBBQUCoIIGMzCCBi+gJDAiBgkqhkiC9xIBAgIGCSqGSIb3EgECAgYKKwYBBAGCNwICCq...
This includes an usage of the OID "1.3.6.1.5.5.2" (Microsoft SPNEGO). I decode this string (BASE64) and feed the resulting byte-array into this method of mine:
protected GSSContext getContext(byte[] in)
throws
GSSException
{
GSSContext res=null;
{
if (in!=null)
{
try
{
GSSManager manager=GSSManager.getInstance();
Oid[] mechs=manager.getMechs();
System.out.println("Mechs:> "+mechs+", "+Arrays.toString(mechs));
res=manager.createContext(in);<- CODE FAILS HERE!
}
catch(GSSException ex)
{
ex.printStackTrace(System.out);
}
}
}
return res;
}
At runtime, this code fails with this output:
Mechs:> [Lorg.ietf.jgss.Oid;@14f0fb4, [1.3.6.1.5.5.2, 1.2.840.113554.1.2.2]
GSSException: Operation unavailable
at sun.security.jgss.GSSManagerImpl.getMechanismContext(Unknown Source)
at sun.security.jgss.GSSContextImpl.<init>(Unknown Source)
at sun.security.jgss.GSSManagerImpl.createContext(Unknown Source)
at <my code>
...
What does "Operation unavailable" mean?
What exactly is the complaint?
Anything to turn on to get some real debug-information?
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Regards
Morten Sabroe Mortensen
