[incubator-dubbo] branch master updated: simplify map empty judgment (#3376)

[yiji]

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yiji pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-dubbo.git


The following commit(s) were added to refs/heads/master by this push:
     new 7f262f9  simplify map empty judgment (#3376)
7f262f9 is described below

commit 7f262f960b830db3b80d35451f259430ae56b1c8
Author: yì jí <y...@apache.org>
AuthorDate: Tue Jan 29 13:38:51 2019 +0800

    simplify map empty judgment (#3376)
---
 .../src/main/java/org/apache/dubbo/rpc/protocol/AbstractInvoker.java  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 
a/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/protocol/AbstractInvoker.java
 
b/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/protocol/AbstractInvoker.java
index d59af2b..4cd9148 100644
--- 
a/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/protocol/AbstractInvoker.java
+++ 
b/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/protocol/AbstractInvoker.java
@@ -134,11 +134,11 @@ public abstract class AbstractInvoker<T> implements 
Invoker<T> {
         }
         RpcInvocation invocation = (RpcInvocation) inv;
         invocation.setInvoker(this);
-        if (attachment != null && attachment.size() > 0) {
+        if (attachment != null && !attachment.isEmpty()) {
             invocation.addAttachmentsIfAbsent(attachment);
         }
         Map<String, String> contextAttachments = 
RpcContext.getContext().getAttachments();
-        if (contextAttachments != null && contextAttachments.size() != 0) {
+        if (contextAttachments != null && !contextAttachments.isEmpty()) {
             /**
              * invocation.addAttachmentsIfAbsent(context){@link 
RpcInvocation#addAttachmentsIfAbsent(Map)}should not be used here,
              * because the {@link RpcContext#setAttachment(String, String)} is 
passed in the Filter when the call is triggered