Rohit Kumar created SLING-3370:
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Summary: Bootdelegation support for third party library
Key: SLING-3370
URL: https://issues.apache.org/jira/browse/SLING-3370
Project: Sling
Issue Type: Improvement
Components: Launchpad
Affects Versions: Launchpad Base 2.5.0
Reporter: Rohit Kumar
Requirement:
1) Bootdelegate third party library in SLing OSGI framework.
2) Bootdelegated classes and resources should be looked up from configured
third party jars only. Similar classes from parent classloaders should not leak
into system. This case arises usually in Web deployment scenario.
Infact we want to bootdelegate RSA library and at the same time prevent
interference from parent classloaders in Web deployment model.
Approach:
1) We extend SlingLauncherClassloader to scan a predefined path (say
<launchpadhome>/lib/etx) for jar files and add them to its classpath. This is
done at startup. SlingLauncherClassloader will try to load class from its
classpath before trying parent classloaders. Currently it is done for
org.apache.sling.launchpad.base.jar.
2) The packages can be configured for bootdelegation using sling properties:
sling.bootdelegation.class.<any bootdelegated class>=<bootdelegated
package>
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