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https://issues.apache.org/jira/browse/HADOOP-15080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16279604#comment-16279604
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SammiChen commented on HADOOP-15080:
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Hi [~chris.douglas], [[email protected]] and [~mackrorysd], thanks all for
the information here. I also have gone through the discussion in LEGAL-349.
Here I want to further explain the dependency chain. The decision we made this
time might be the guide for further issues.
Currently aliyun oss sdk requires json-lib as compile dependency on maven
repository. Assume we change the dependency scope to "test" as it should be.
Here is the dependency chain after that.
{noformat}
compile dependency
test dependency
Hadoop oss storage support module ----------------------------------> aliyun
oss sdk ----------------------------------> json-lib
{noformat}
json-lib is used in oss sdk test functions, not used in any Hadoop oss storage
support module code, including test code. Hadoop project doesn't import any
class from json-lib, and not include it in any pom.xml file. So basically the
impact is if when you build Hadoop, maven will download the json-lib library to
your local maven repository. That's all.
>From the discussion in LEGAL-349, clearly it's prohibited if json-lib is
>directly used in Hadoop oss storage support module test code. I'm not sure if
>the above case is allowed or not.
In the meanwhile, jersey-json is picked to replace json-lib. It is currently
the number one used json library in Hadoop. So we assume it's safe to use. If
anyone do have other opinion, please let me known ASAP. I will go on with
solution 2, try to deliver the new oss sdk to catch up the RC. Thanks
[~andrew.wang]!
> Cat-X dependency on org.json via derived json-lib
> -------------------------------------------------
>
> Key: HADOOP-15080
> URL: https://issues.apache.org/jira/browse/HADOOP-15080
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/oss
> Affects Versions: 3.0.0-beta1
> Reporter: Chris Douglas
> Priority: Blocker
> Attachments: HADOOP-15080-branch-3.0.0.001.patch
>
>
> The OSS SDK has a dependency on json-lib. In LEGAL-245, the org.json library
> (from which json-lib may be derived) is released under a
> [category-x|https://www.apache.org/legal/resolved.html#json] license.
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