5.6. Onward
Custom class loaders allow you to define your own strategy for locating code and resources. You can make your own rules, as long as you can take a Java class name and turn it into a byte array in the binary class format. With custom class loaders you might load classes from an object database, from source control, or over a custom network protocol.
Protocol handlers split the responsibility of class loading into two distinct tasks. A URLClassLoader instance performs security work, assigning the CodeSource that will be used to associate the class with its runtime permissions. A protocol handler defines a URL protocol for locating resources that you can plug in anywhere the Java platform uses URLs. For many custom class loading tasks, ...
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