[jdk9] RFR: 8158802: com.sun.jndi.ldap.SimpleClientId produces wrong hash code

[Ivan Gerasimov]

Hello!

It was noticed that objects of an internal class SimpleClientId that are 
equal (in terms of equals() method) can have different hash codes.
This happens when the password is represented with an array, so 
passwd.hashCode() produces unique value even when the content is same.

Some minor cleanup was done in the sibling file to remove an 
intermediate hash value.

Would you please help review the fix?

BUGURL: https://bugs.openjdk.java.net/browse/JDK-8158802
WEBREV: http://cr.openjdk.java.net/~igerasim/8158802/00/webrev/

With kind regards,
Ivan