@Override
            public Object call() throws Exception {
                String[] result = new String[2];
                result[0] = threadLocalContext.get();
                result[1] = (String) RpcInternalContext.getContext().getAttachment("_testKey");
                return result;
            }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
core/api/src/test/java/com/alipay/sofa/rpc/context/RpcInternalContextTest.java