Why is JBoss Negotiation throwing a KrbException: Checksum failed exception?

Issue

• Why is JBoss Negotiation throwing a KrbException: Checksum failed exception?

2012-04-12 09:50:40,252 INFO  [STDOUT] (http-192.168.1.2-8080-2) principal's key obtained from the keytab
2012-04-12 09:50:40,252 INFO  [STDOUT] (http-192.168.1.2-8080-2) Acquire TGT using AS Exchange
2012-04-12 09:50:40,259 INFO  [STDOUT] (http-192.168.1.2-8080-2)        [Krb5LoginModule] authentication failed 
Checksum failed
2012-04-12 09:50:40,259 ERROR [org.jboss.security.negotiation.toolkit.SecurityDomainTestServlet] (http-192.168.1.2-8080-2) testDomain Failed
javax.security.auth.login.LoginException: Checksum failed
    at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:696)
    at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:542)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at javax.security.auth.login.LoginContext.invoke(LoginContext.java:769)
    at javax.security.auth.login.LoginContext.access$000(LoginContext.java:186)
    at javax.security.auth.login.LoginContext$4.run(LoginContext.java:683)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
    at javax.security.auth.login.LoginContext.login(LoginContext.java:579)
    at org.jboss.security.negotiation.toolkit.SecurityDomainTestServlet.testDomain(SecurityDomainTestServlet.java:108)
    at org.jboss.security.negotiation.toolkit.SecurityDomainTestServlet.doGet(SecurityDomainTestServlet.java:77)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451)
    at java.lang.Thread.run(Thread.java:619)
Caused by: KrbException: Checksum failed
    at sun.security.krb5.internal.crypto.Des3CbcHmacSha1KdEType.decrypt(Des3CbcHmacSha1KdEType.java:77)
    at sun.security.krb5.internal.crypto.Des3CbcHmacSha1KdEType.decrypt(Des3CbcHmacSha1KdEType.java:69)
    at sun.security.krb5.EncryptedData.decrypt(EncryptedData.java:168)
    at sun.security.krb5.KrbAsRep.<init>(KrbAsRep.java:87)
    at sun.security.krb5.KrbAsReq.getReply(KrbAsReq.java:448)
    at sun.security.krb5.Credentials.sendASRequest(Credentials.java:401)
    at sun.security.krb5.Credentials.acquireTGT(Credentials.java:350)
    at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:672)
    ... 36 more
Caused by: java.security.GeneralSecurityException: Checksum failed
    at sun.security.krb5.internal.crypto.dk.DkCrypto.decrypt(DkCrypto.java:365)
    at sun.security.krb5.internal.crypto.Des3.decrypt(Des3.java:56)
    at sun.security.krb5.internal.crypto.Des3CbcHmacSha1KdEType.decrypt(Des3CbcHmacSha1KdEType.java:75)
    ... 43 more