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- SystemClasses cannot be overridden by webapp context classloaders. The defaults are; {"java.","javax.servlet.","javax.xml.","org.mortbay.","org.xml.","org.w3c.", "org.apache.commons.logging.", "org.apache.log4j."}
- ServerClasses (on the container classpath) cannot be seen by webapp context classloaders but can be overridden by the webapp. The defaults are: { "-org.mortbay.naming.","-org.mortbay.util.","org.mortbay.", "org.slf4j."};
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