boolean function ( ) { return this . exception != null ; }
for use in async rpc clients concode_field_sep IOException exception concode_elem_sep AtomicReference<RpcCallback<Object>> cancellationCb concode_elem_sep AtomicReference<RpcCallback<IOException>> failureCb concode_elem_sep boolean cancelled concode_elem_sep Integer callTimeout concode_field_sep String errorText concode_elem_sep boolean isCanceled concode_elem_sep void startCancel concode_elem_sep void setCallTimeout concode_elem_sep boolean hasCallTimeout concode_elem_sep void notifyOnFail concode_elem_sep void reset concode_elem_sep int getCallTimeout concode_elem_sep void setFailed concode_elem_sep void setFailed concode_elem_sep void notifyOnCancel