FULL PRODUCT VERSION :
JDK1.7.0_45

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
In JDK1.7.0_45, CertificateFactory.getInstance("X.509").generateCertificates(in) do not throw CertificateException for invalid input. But in jdk1.6.0_45, it can throw CertificateException for invalid input.
See following JUnit test code:
@org.junit.Test
public void testGenerateCertificates() throws Exception {
byte[] invalidCertBytes = "this is not valid x509 certficate byte array"
.getBytes();
CertificateFactory cf = CertificateFactory.getInstance("X.509");
/*
 * Following suppose throw CertificateException. For jdk1.6.0_45_32bit,
 * following code can throw CertificateException. But for
 * jdk1.7.0_45_64bit, it just return a empty collection.
 */
Collection<? extends Certificate> certs = cf
.generateCertificates(new ByteArrayInputStream(invalidCertBytes));
System.out.println(certs.isEmpty());
}

REGRESSION.  Last worked in version 6u45

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the JUnit test code against JDK1.7.0_45.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Throw CertificateException
ACTUAL -
Return a empty collection.

REPRODUCIBILITY :
This bug can be reproduced always.