[jira] [Comment Edited] (HTRACE-399) Exclude jackson from test dependency on htrace-core4 to avoid infinite loop on creating dependency-reduced-pom

["Masatake Iwasaki (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HTRACE-399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013444#comment-16013444 ] 

Masatake Iwasaki edited comment on HTRACE-399 at 5/17/17 3:08 AM:
------------------------------------------------------------------

Though htrace-zipkin has similar dependency on htrace-core4, there was no issue.
{noformat}
    <dependency>
      <groupId>org.apache.htrace</groupId>
      <artifactId>htrace-core4</artifactId>
      <version>${project.version}</version>
    </dependency>
    <dependency>
      <groupId>org.apache.htrace</groupId>
      <artifactId>htrace-core4</artifactId>
      <version>${project.version}</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
{noformat}

The issue seems to be related to 'provided' scope depnedency in htrace-hbase.
{noformat}
    <dependency>
      <groupId>org.apache.htrace</groupId>
      <artifactId>htrace-core4</artifactId>
      <version>${project.version}</version>
      <scope>provided</scope>
    </dependency>
{noformat}

Since I don't like classes of htrace-core4 is copied into shaded jar of htrace-hbase, I would like to keep this being 'provided'.



was (Author: iwasakims):
Though htrace-zipkin has similar dependency on htrace-core4, there was no issue.
{noformat}
    <dependency>
      <groupId>org.apache.htrace</groupId>
      <artifactId>htrace-core4</artifactId>
      <version>${project.version}</version>
    </dependency>
    <dependency>
      <groupId>org.apache.htrace</groupId>
      <artifactId>htrace-core4</artifactId>
      <version>${project.version}</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
{noformat}

The issue seems to be related to 'provided' scope depnedency in htrace-hbase.
{noformat}
    <dependency>
      <groupId>org.apache.htrace</groupId>
      <artifactId>htrace-core4</artifactId>
      <version>${project.version}</version>
      <scope>provided</scope>
    </dependency>
{noformat}

Since I don't like classes of htrace-core4 is copied into shaded jar of htrace-hbase, I would not like to this scope to 'compile'.


> Exclude jackson from test dependency on htrace-core4 to avoid infinite loop on creating dependency-reduced-pom
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: HTRACE-399
>                 URL: https://issues.apache.org/jira/browse/HTRACE-399
>             Project: HTrace
>          Issue Type: Bug
>          Components: htrace-hbase
>            Reporter: Masatake Iwasaki
>            Assignee: Masatake Iwasaki
>         Attachments: HTRACE-399.001.patch
>
>
> This is follow-up of HTRACE-234. As it is descrived in MSHADE-148, depending both of main and test jar of htrace-core4 causes the infinite loop on creating dependency-reduced-pom. I found that the loop is on adding jackson-core and jackson-databind to exclusions. Excluding jackson from test dependency to htrace-core4 fixed the issue. Since htrace-core4 has its own relocated jackson, htrace-hbase does not need the transitive dependency.



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