src/main/java/com/cloudbees/sdk/extensibility/ExtensionLoaderModule.java
public void init(Class<? extends T> impl, Class<T> extensionPoint) {
        this.impl = impl;
        this.extensionPoint = extensionPoint;
    }
public void init(Class<? extends T> impl, Class<T> extensionPoint) {
        this.impl = impl;
        this.extensionPoint = extensionPoint;
    }
Called by {@link ExtensionFinder} to initialize this module.