JDK-6819110 : Lazily load Sun digest provider for jar verification
  • Type: Enhancement
  • Component: security-libs
  • Sub-Component: java.security
  • Affected Version: 7
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2009-03-18
  • Updated: 2010-04-02
  • Resolved: 2009-04-11
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Resolved: Release in which this issue/RFE has been resolved.
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JDK 6 JDK 7
6u14Fixed 7 b55Fixed
Related Reports
Relates :  
JDK-6998860 - Signed jar file verification is currently creating many extra new Sun providers.
Relates :  
JDK-6798873 - Reduce the number of classes loaded and class dependencies
Description
To verify a jar file entry, sun.security.util.ManifestEntryVerifer instance will be created. ManifestEntryVerifier's static initializer calls sun.security.jce.Providers.getSunProvider() that loads and initializes several security classes which are not nnecessarily needed at startup.

So call Providers.getSunProvider() when
Comments
SUGGESTED FIX public class ManifestEntryVerifier { private static final Debug debug = Debug.getInstance("jar"); - private static final Provider digestProvider = Providers.getSunProvider(); - /** the created digest objects */ HashMap<String, MessageDigest> createdDigests; /** the digests in use for a given entry*/ ArrayList<MessageDigest> digests; @@ -125,11 +123,11 @@ if (digest == null) { try { digest = MessageDigest.getInstance - (algorithm, digestProvider); + (algorithm, Providers.getSunProvider()); createdDigests.put(algorithm, digest); } catch (NoSuchAlgorithmException nsae) { // ignore } }
18-03-2009
EVALUATION Fix to call Providers.getSunProvider() when it's used.
18-03-2009