fix(AbstractProxyInvoker):fix NPE problem(apache#788)

cuteason · qinliujie · commit 6011b360e3dc · 2017-11-02T16:31:33.000+08:00
NPE bug fixed.
diff --git a/dubbo-rpc/dubbo-rpc-api/src/main/java/com/alibaba/dubbo/rpc/proxy/AbstractProxyInvoker.java b/dubbo-rpc/dubbo-rpc-api/src/main/java/com/alibaba/dubbo/rpc/proxy/AbstractProxyInvoker.java
@@ -81,8 +81,8 @@ public Result invoke(Invocation invocation) throws RpcException {
 
     @Override
     public String toString() {
-        return getInterface() + " -> " + getUrl() == null ? " " : getUrl().toString();
+        return getInterface() + " -> " + (getUrl() == null ? " " : getUrl().toString());
     }
 
 
-}
+}

Original file line number	Diff line number	Diff line change
`@@ -81,8 +81,8 @@ public Result invoke(Invocation invocation) throws RpcException {`
`81`	`81`
`82`	`82`	`@Override`
`83`	`83`	`public String toString() {`
`84`		`- return getInterface() + " -> " + getUrl() == null ? " " : getUrl().toString();`
	`84`	`+ return getInterface() + " -> " + (getUrl() == null ? " " : getUrl().toString());`
`85`	`85`	`}`
`86`	`86`
`87`	`87`
`88`		`-}`
	`88`	`+}`