Can't create protocol session with SessionStatProxy

[abliznyuk]

Problem

Creation of session proxy failed when in application uses target class proxies.

It happens because environment changes (by default used class interfaces proxies). E.g. add Spring Cloud components that use target class proxies.

How to reproduce

In context set property target-class-proxy=true.

Exception throws in DirectProtocolGateway when proxy casts to protocol type:
https://github.com/ametiste-oss/ametiste-lambda-platform/blob/master/lambda-platform-pgw/src/main/java/org/ametiste/laplatform/protocol/gateway/DirectProtocolGateway.java#L199

private <T extends Protocol> T proxySession(Protocol obj, SessionStatProxy sessionStatProxy, Class<T> protocolType) {
    T session = protocolType.cast(java.lang.reflect.Proxy.newProxyInstance(
            obj.getClass().getClassLoader(),
            obj.getClass().getInterfaces(),
            sessionStatProxy
    ));
    return session;
}

Stacktrace:

2016-09-06 00:23:55.198 ERROR 42606 --- [pool-3-thread-1] o.a.r.i.e.l.LocalLineExecutionGateway    : Error during task operation execution : mod-shredder-op-shredding-stale

java.lang.ClassCastException: Cannot cast com.sun.proxy.$Proxy131 to org.ametiste.routine.infrastructure.protocol.taskpool.TaskPoolProtocol
    at java.lang.Class.cast(Class.java:3369) ~[na:1.8.0_91]
    at org.ametiste.laplatform.protocol.gateway.DirectProtocolGateway.proxySession(DirectProtocolGateway.java:199) ~[lambda-platform-pgw-0.2.6.jar:na]
    at org.ametiste.laplatform.protocol.gateway.DirectProtocolGateway.protocolOptions(DirectProtocolGateway.java:158) ~[lambda-platform-pgw-0.2.6.jar:na]
    at org.ametiste.laplatform.protocol.gateway.DirectProtocolGateway.session(DirectProtocolGateway.java:54) ~[lambda-platform-pgw-0.2.6.jar:na]
    at org.ametiste.laplatform.protocol.ProtocolGateway.session(ProtocolGateway.java:24) ~[lambda-platform-pgw-0.2.6.jar:na]

It happens because protocol instance obj is Proxy too (e.g. metric aspects proxies, com.sun.proxy.$Proxy). So java.lang.reflect.Proxy.newProxyInstance creates proxy for Proxy target class and as result we get ClassCastException in cast method.