Rdn.compareTo() method is not invertable
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Key: DIRSHARED-3
URL: https://issues.apache.org/jira/browse/DIRSHARED-3
Project: Directory Shared
Issue Type: Bug
Affects Versions: 0.9.10
Reporter: Stefan Seelmann
Priority: Minor
Fix For: 0.9.11
The API doc of Comparable.compareTo() states:
"The implementor must ensure sgn(x.compareTo(y)) == -sgn(y.compareTo(x)) for
all x and y."
I think the Rdn.compareTo() method doesn't fulfill this contract for some
special multi-valued RDNs:
Case1: mv-RDNs with same types but different values
RDN1: a=b+a=c
RDN2: a=b+a=y
Case2: mv-RDNs with complete different types
RDN1: a=b+c=d
RDN2: e=f+g=h
In both cases RDN1.compareTo(RDN2) returns 1 and also RDN1.compareTo(RDN2)
returns 1, but it must be something like 1 and -1.
BTW: Why does the LDAP/X.500 spec allows such mv-RDNs? Grrrr
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