[HADOOP-11267] TestSecurityUtil fails when run with JDK8 because of empty principal names

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.7.0, 2.6.3, 3.0.0-alpha1
• Component/s: security, test
• Target Version/s: 2.7.0
• Hadoop Flags: Reviewed
• Assignee: Stephen Chu
• Reporter: Stephen Chu
• Created: 04/Nov/14 22:49
• Updated: 30/Aug/16 01:31
• Resolved: 05/Nov/14 23:34

Description

Running TestSecurityUtil on JDK8 will fail:

java.lang.IllegalArgumentException: Empty nameString not allowed
	at sun.security.krb5.PrincipalName.validateNameStrings(PrincipalName.java:171)
	at sun.security.krb5.PrincipalName.<init>(PrincipalName.java:393)
	at sun.security.krb5.PrincipalName.<init>(PrincipalName.java:460)
	at javax.security.auth.kerberos.KerberosPrincipal.<init>(KerberosPrincipal.java:120)
	at org.apache.hadoop.security.TestSecurityUtil.isOriginalTGTReturnsCorrectValues(TestSecurityUtil.java:57)

In JDK8, PrincipalName checks that its name is not empty and throws an IllegalArgumentException if it is empty. This didn't happen in JDK6/7.