Cannot locate/load certificate by PKCS#11 certificate name

[mouse07410]

I expect to be able to locate and load certificates (and actually, their related private keys) using their alias as reported by Java keytool, and OpenSC pkcs15-tool -c and pkcs11-tool -O. For example:

$ pkcs11-tool -O
Using slot 0 with a present token (0x0)
Public Key Object; RSA 2048 bits
  label:      PIV AUTH pubkey
  ID:         01
  Usage:      encrypt, verify, wrap
Certificate Object, type = X.509 cert
  label:      Certificate for PIV Authentication
  ID:         01
Public Key Object; RSA 2048 bits
  label:      SIGN pubkey
  ID:         02
  Usage:      encrypt, verify
Certificate Object, type = X.509 cert
  label:      Certificate for Digital Signature
  ID:         02
Public Key Object; RSA 2048 bits
  label:      KEY MAN pubkey
  ID:         03
  Usage:      encrypt, wrap
Certificate Object, type = X.509 cert
  label:      Certificate for Key Management
  ID:         03
. . . . .
$

and

$ pkcs15-tool -c
Using reader with a card: Yubico Yubikey NEO OTP+U2F+CCID
X.509 Certificate [Certificate for PIV Authentication]
    Object Flags   : [0x0]
    Authority      : no
    Path           : 
    ID             : 01
    Encoded serial : 02 04 57A9DFB6
X.509 Certificate [Certificate for Digital Signature]
    Object Flags   : [0x0]
    Authority      : no
    Path           : 
    ID             : 02
    Encoded serial : 02 04 578E91A9
X.509 Certificate [Certificate for Key Management]
    Object Flags   : [0x0]
    Authority      : no
    Path           : 
    ID             : 03
    Encoded serial : 02 04 578E9212
X.509 Certificate [Certificate for Card Authentication]
    Object Flags   : [0x0]
    Authority      : no
    Path           : 
    ID             : 04
    Encoded serial : 02 04 578E924A
$

But trying to do

   String aliasCert = "Certificate for Key Management";
   if (ks.isCertificateEntry(aliasCert))
      System.out.println("Got certificate entry for alias " + aliasCert);
   . . . . .

never prints that line. Somehow it insists on locating certificates by DN plus index (03 for Key Management).

SunPKCS11-based code always find the entries using the above aliasCert. Is there any problem/reason why opensc-java doesn't...?