JDK-6818072 : Load Ductus using Class.forName if exist instead of using the service loader
  • Type: Enhancement
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 7
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2009-03-16
  • Updated: 2011-05-18
  • Resolved: 2011-05-18
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JDK 7
7 b58Fixed
Related Reports
Relates :  
JDK-6798873 - Reduce the number of classes loaded and class dependencies
Relates :  
JDK-6610080 - Create a viable OpenJDK RenderingEngine plugin
Relates :  
JDK-6476534 - Need to implement pluggable architecture of CMM code
Relates :  
JDK-6566807 - Need pluggable interface to facilitate OpenJDK replacement of encumbered Ductus components
Description
Pluggable interfaces for rendering engine and CMM are added in JDK 7 to enable OpenJDK replacement of encumbered code and use service loader to load the specified provider.

For Sun's JDK build, Ductus rendering engine and Kodak CMS are included and we can avoid using the service loader and instead, load the class directly if exist.  This will remove the dependency on the service loader.
Comments
EVALUATION This bug was fixed before 2009/4/15 prior to JDK 7 m3 deadline. As the next integration for 2D is b58, this bug fix needs m3 approval. Webrev at: http://cr.openjdk.java.net/~mchung/6818072/webrev.03/
20-04-2009
SUGGESTED FIX http://hg.openjdk.java.net/jdk7/jdk7/rev/e61d93fc8ed1
15-04-2009
EVALUATION The image.io heavily uses the service loader mechanism to load the providers supplied in the application classpath. So we will fix this for the Ductus rendering engine. Attempt to load Ductus library; if not exist, use service loader to lookup the rendering engine as in the existing implementation.
25-03-2009
EVALUATION Use Class.forName to load the ductus and kodak CMM libraries. Fall back to use ServiceLoader if class not found.
16-03-2009