java 1.5 KINIT error

[FM]

Hello,

I'm trying to use kinit with kerberos but :
 > bin/kinit user at REALM

Password for userf at REALM:password
Exception: krb_error 31 Integrity check on decrypted field failed (31) 
Integrity check on decrypted field failed
KrbException: Integrity check on decrypted field failed (31)
        at sun.security.krb5.internal.crypto.v.b(DashoA12275:154)
        at sun.security.krb5.internal.crypto.v.b(DashoA12275:125)
        at sun.security.krb5.EncryptedData.decrypt(DashoA12275:157)
        at sun.security.krb5.KrbAsRep.<init>(DashoA12275:82)
        at sun.security.krb5.KrbAsReq.getReply(DashoA12275:345)
        at sun.security.krb5.KrbAsReq.getReply(DashoA12275:303)
        at sun.security.krb5.internal.tools.Kinit.<init>(DashoA12275:252)
        at sun.security.krb5.internal.tools.Kinit.main(DashoA12275:106)

Is someone using java + kerberos ?

Thanks !