apache / apache/dubbo

Alibaba dubbo 2.6.6 is upgraded to apache dubbo 2.7.22, "default." compatibility issue

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Description

2.6.6 com.alibaba.dubbo.common.URL#getParameter(java.lang.String)
![image](https://user-images.githubusercontent.com/26109828/227867083-92510f22-c3de-4848-9163-520bf15a59a6.png)

2.7.22 org.apache.dubbo.common.URL#getParameter(java.lang.String)
![image](https://user-images.githubusercontent.com/26109828/227865810-840bfe8c-46c9-452a-b165-ef7ec21b8ac1.png)

org.apache.dubbo.common.utils.UrlUtils#isMatch
![image](https://user-images.githubusercontent.com/26109828/227866203-1b449d8e-b136-41f6-a874-c0dd72cec699.png)

Is it compatible with the method of getting URL parameters in 2.6.6 in version 2.7.22
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是否能在2.7.22版本中兼容2.6.6获取URL参数的方法

Contributor guide

Open the contributing guide

Research direction

Compare com.alibaba.dubbo.common.URL#getParameter(java.lang.String) in 2.6.6 with org.apache.dubbo.common.URL#getParameter(java.lang.String) in 2.7.22, then read org.apache.dubbo.common.utils.UrlUtils#isMatch. Determine whether the parameter behavior is compatible and document the result or the specific incompatibility.

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Assessment

Tech stack
java
Domain
distributed-systems
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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