protected void executeInPolicyContextLoader(ClassLoader classloader, Procedure procedure) {
        ClassLoader oldCtxLoader = Thread.currentThread().getContextClassLoader();
        try {
            Thread.currentThread().setContextClassLoader(classloader);
            procedure.execute();
        } finally {
            Thread.currentThread().setContextClassLoader(oldCtxLoader);
        }
    }
Send abort signal to all policies.
gateway/engine/core/src/main/java/io/apiman/gateway/engine/policy/Chain.java