Nightly running results show that except des-cbc-md5, all other encryption types fails using the most recent jdk build. These result can be divided into three categories:
1. des-cbc-md5
This test succeeded without any failure.
2. des3-cbc-sha1, aes128-cts, rc4-hmac, des-cbc-crc
These four tests failed with the following exceptions:
Exception in thread "main" javax.security.auth.login.LoginException: Encryption
type NULL is not supported/enabled
        at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Kr
b5LoginModule.java:658)
        at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.ja
va:512)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at javax.security.auth.login.LoginContext.invoke(LoginContext.java:769)
        at javax.security.auth.login.LoginContext.access$000(LoginContext.java:1
86)
        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:6
80)
        at javax.security.auth.login.LoginContext.login(LoginContext.java:579)
        at BackendServer.main(BackendServer.java:186)
Caused by: KrbException: Encryption type NULL is not supported/enabled
        at sun.security.krb5.EncryptionKey.findKey(EncryptionKey.java:466)
        at sun.security.krb5.KrbAsReq.init(KrbAsReq.java:380)
        at sun.security.krb5.KrbAsReq.<init>(KrbAsReq.java:299)
        at sun.security.krb5.KrbAsReq.<init>(KrbAsReq.java:100)
        at sun.security.krb5.Credentials.sendASRequest(Credentials.java:417)
        at sun.security.krb5.Credentials.acquireTGT(Credentials.java:397)
        at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Kr
b5LoginModule.java:629)
        ... 12 more
3. aes256-cts
This test failed with the following exceptions.
Exception in thread "main" javax.security.auth.login.LoginException: No supporte
d encryption types listed in default_tkt_enctypes
        at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Kr
b5LoginModule.java:658)
        at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.ja
va:512)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at javax.security.auth.login.LoginContext.invoke(LoginContext.java:769)
        at javax.security.auth.login.LoginContext.access$000(LoginContext.java:1
86)
        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:6
80)
        at javax.security.auth.login.LoginContext.login(LoginContext.java:579)
        at BackendServer.main(BackendServer.java:186)
Caused by: KrbException: No supported encryption types listed in default_tkt_enc
types
        at sun.security.krb5.internal.crypto.EType.getDefaults(EType.java:221)
        at sun.security.krb5.KrbAsReq.init(KrbAsReq.java:384)
        at sun.security.krb5.KrbAsReq.<init>(KrbAsReq.java:299)
        at sun.security.krb5.KrbAsReq.<init>(KrbAsReq.java:80)
        at sun.security.krb5.Credentials.sendASRequest(Credentials.java:415)
        at sun.security.krb5.Credentials.acquireTGT(Credentials.java:377)
        at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Kr
b5LoginModule.java:629)
        ... 12 more

The configuration files of these tests are of the following formats(xxxx stands for one specific encryption type):
[libdefaults]
        default_realm = AMD-01.SFBAY.SUN.COM
        default_tgs_enctypes = xxxx
        default_tkt_enctypes = xxxx
        permitted_enctypes = xxxx
        forwardable = true
[realms]
        AMD-01.SFBAY.SUN.COM = {
        kdc = amd-01.sfbay.sun.com
        admin_server = amd-01.sfbay.sun.com
        }

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