ClassLoader issues with SDO
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Key: TUSCANY-67
URL: http://issues.apache.org/jira/browse/TUSCANY-67
Project: Tuscany
Type: Bug
Components: Java Spec APIs, Java SDO Implementation
Reporter: Jeremy Boynes
The SDO spec makes extensive use of INSTANCE static fields on the helper
interfaces which results in a solution that is complex to use and error prone
in any environment where more than one ClassLoader is involved.
We should work with the spec group to formulate a model that is easier for
people to use in today's more complex environments (including build frameworks
like Maven and Ant, IDE environments like Eclipse, server environments like
Tomcat and Geronimo, application frameworks like Spring, etc. etc.). I will
open a sub-task specfically for this.
We should also ensure that the Tuscany implementation of SDO is easy to use in
these environments irrespective of what the spec says. We need to define a set
of APIs that make it easy to handle multiple type spaces in the same JVM and/or
ClassLoader without requiring the user to play tricks with the Thread's context
classloader (which they may not even have permission to do). We should also
ensure any usage of SDO by the SCA runtime uses these APIs, reserving the
default SDO type space for user applications.
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