FULL PRODUCT VERSION :
java version "1.5.0_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)
Java HotSpot(TM) Client VM (build 1.5.0_05-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows XP Service Pack1

A DESCRIPTION OF THE PROBLEM :
JarEntry.getCertificates() is returning null for a class file iwhen a valid certificate exists. The same test on JDK 1.3 and JDK 1.4 returns the certificate from the jar file.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
The attachment to the Jira bug DERBY-553 at Apache Derby has the code to reproduce the problem.

http://issues.apache.org/jira/browse/DERBY-553

Attachment: cert15_repro.jar

Unjar and follow the README.txt

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
For just (jdk142)

java -cp . cert15 file:dcl_emc2s.jar

Entry: META-INF/EMCCTO.SF
  no certificates
Entry: META-INF/EMCCTO.DSA
  no certificates
Entry: META-INF/
  no certificates
Entry: article/
  no certificates
Entry: article/release.txt
1 certificates
  [
[
  Version: V1
  Subject: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  Signature Algorithm: SHA1withDSA, OID = 1.2.840.10040.4.3

  Key: IBMJCE DSA Public Key:
1369357455684227651099409138014984629173887494125957258336670286186212859602995
4417945383834221707472511153942143233305201210772956708316837732015570095623732
8506597177247015828958873371906623219045221495693320553318427620135136893603481
231771972765428767912357849162321695586848491978028631172699284428192

  Validity: [Wrom: NHGSWZIDREXCAXZOWCONEUQZAAFXI
               To: Wed Nov 30 08:05:04 PST 2005]
  Issuer: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  SerialNumber: [1125590704]

]
  Algorithm: [SHA1withDSA]
  Signature:
0000: 30 2c 02 14 03 4b d5 61 c8 af 78 d3 88 a3 12 02 0....K.a..x.....
0010: ac 96 72 42 09 da 5f e8 02 14 13 9d 79 02 46 8d ..rB........y.F.
0020: 2f 96 49 86 a1 f0 cf e5 a4 8b 81 8e 1f e9 ..I...........

]
Entry: emc.java
1 certificates
  [
[
  Version: V1
  Subject: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  Signature Algorithm: SHA1withDSA, OID = 1.2.840.10040.4.3

  Key: IBMJCE DSA Public Key:
1369357455684227651099409138014984629173887494125957258336670286186212859602995
4417945383834221707472511153942143233305201210772956708316837732015570095623732
8506597177247015828958873371906623219045221495693320553318427620135136893603481
231771972765428767912357849162321695586848491978028631172699284428192

  Validity: [Wrom: SHJEXXIMQZUIVOTQNQEMSFDULHPQQ
               To: Wed Nov 30 08:05:04 PST 2005]
  Issuer: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  SerialNumber: [1125590704]

]
  Algorithm: [SHA1withDSA]
  Signature:
0000: 30 2c 02 14 03 4b d5 61 c8 af 78 d3 88 a3 12 02 0....K.a..x.....
0010: ac 96 72 42 09 da 5f e8 02 14 13 9d 79 02 46 8d ..rB........y.F.
0020: 2f 96 49 86 a1 f0 cf e5 a4 8b 81 8e 1f e9 ..I...........

]
Entry: org/
  no certificates
Entry: org/apache/
  no certificates
Entry: org/apache/derbyTesting/
  no certificates
Entry: org/apache/derbyTesting/databaseclassloader/
  no certificates
Entry: org/apache/derbyTesting/databaseclassloader/emc.class
1 certificates
  [
[
  Version: V1
  Subject: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  Signature Algorithm: SHA1withDSA, OID = 1.2.840.10040.4.3

  Key: IBMJCE DSA Public Key:
1369357455684227651099409138014984629173887494125957258336670286186212859602995
4417945383834221707472511153942143233305201210772956708316837732015570095623732
8506597177247015828958873371906623219045221495693320553318427620135136893603481
231771972765428767912357849162321695586848491978028631172699284428192

  Validity: [Wrom: WOYIYZUNNYCGPKYLEJGDGVCJVTLBX
               To: Wed Nov 30 08:05:04 PST 2005]
  Issuer: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  SerialNumber: [1125590704]

]
  Algorithm: [SHA1withDSA]
  Signature:
0000: 30 2c 02 14 03 4b d5 61 c8 af 78 d3 88 a3 12 02 0....K.a..x.....
0010: ac 96 72 42 09 da 5f e8 02 14 13 9d 79 02 46 8d ..rB........y.F.
0020: 2f 96 49 86 a1 f0 cf e5 a4 8b 81 8e 1f e9 ..I...........

]
Entry: org/apache/derbyTesting/databaseclassloader/graduate.txt
1 certificates
  [
[
  Version: V1
  Subject: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  Signature Algorithm: SHA1withDSA, OID = 1.2.840.10040.4.3

  Key: IBMJCE DSA Public Key:
1369357455684227651099409138014984629173887494125957258336670286186212859602995
4417945383834221707472511153942143233305201210772956708316837732015570095623732
8506597177247015828958873371906623219045221495693320553318427620135136893603481
231771972765428767912357849162321695586848491978028631172699284428192

  Validity: [Wrom: FGGMEPYOQKEDOTWFAOBUZXUWLSZLK
               To: Wed Nov 30 08:05:04 PST 2005]
  Issuer: CN=EMC CTO, OU=EMC APP, O=Easy Mail Company, C=US
  SerialNumber: [1125590704]

]
  Algorithm: [SHA1withDSA]
  Signature:
0000: 30 2c 02 14 03 4b d5 61 c8 af 78 d3 88 a3 12 02 0....K.a..x.....
0010: ac 96 72 42 09 da 5f e8 02 14 13 9d 79 02 46 8d ..rB........y.F.
0020: 2f 96 49 86 a1 f0 cf e5 a4 8b 81 8e 1f e9 ..I...........



ACTUAL -
For just (jdk1.5)

java -cp . cert15 file:dcl_emc2s.jar

Entry: META-INF/EMCCTO.SF
  no certificates
Entry: META-INF/EMCCTO.DSA
  no certificates
Entry: META-INF/
  no certificates
Entry: article/
  no certificates
Entry: article/release.txt
  no certificates
Entry: emc.java
  no certificates
Entry: org/
  no certificates
Entry: org/apache/
  no certificates
Entry: org/apache/derbyTesting/
  no certificates
Entry: org/apache/derbyTesting/databaseclassloader/
  no certificates
Entry: org/apache/derbyTesting/databaseclassloader/emc.class
  no certificates
Entry: org/apache/derbyTesting/databaseclassloader/graduate.txt
  no certificates

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
http://issues.apache.org/jira/browse/DERBY-553

Attachment: cert15_repro.jar
---------- END SOURCE ----------

Release Regression From : 1.4.2_10
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.