/** {@inheritDoc} */
public <V, T extends Throwable> V call(Callable<V, T> callable)
throws IOException, T, InterruptedException {
UserRequest<V, T> request = null;
try {
request = new UserRequest<V, T>(this, callable);
UserResponse<V, T> r = request.call(this);
return r.retrieve(this, UserRequest.getClassLoader(callable));
// re-wrap the exception so that we can capture the stack trace of the caller.
} catch (ClassNotFoundException e) {
IOException x = new IOException("Remote call on " + name + " failed");
x.initCause(e);
throw x;
} catch (Error e) {
IOException x = new IOException("Remote call on " + name + " failed");
x.initCause(e);
throw x;
} finally {
// since this is synchronous operation, when the round trip is over
// we assume all the exported objects are out of scope.
// (that is, the operation shouldn't spawn a new thread or altter
// global state in the remote system.
if (request != null) request.releaseExports();
}
}
