Cloned component shares same policy provider list as original component causing
duplicated policy providers
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Key: TUSCANY-3988
URL: https://issues.apache.org/jira/browse/TUSCANY-3988
Project: Tuscany
Issue Type: Bug
Affects Versions: Java-SCA-2.0
Reporter: Greg Dritschler
Priority: Minor
Scenario: A composite "X" has multiple implementation.composite components
that point to the same composite Y.
Problem: Components in Y have duplicated implementation policy providers.
Detailed explanation: CompositeCloneBuilderImpl clones each occurrence of Y
which clones the components under it. However RuntimeComponentImpl does not
have a clone method, so its policy provider list is simply copied to the clone.
When CompositeActivatorImpl creates implementation policy providers for each
component in Y, it is not updating a unique list, but rather a list that is
shared with the other clones, causing the duplication.
Proposed solution: Add a clone method to RuntimeComponentImpl that initializes
a new policy provider list.
@Override
public Object clone() throws CloneNotSupportedException {
RuntimeComponentImpl clone = (RuntimeComponentImpl)super.clone();
clone.policyProviders = new ArrayList<PolicyProvider>();
return clone;
}
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