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https://issues.apache.org/jira/browse/PHOENIX-5022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16699936#comment-16699936
 ] 

James Taylor edited comment on PHOENIX-5022 at 11/27/18 5:31 AM:
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Looks like a general problem with phoenix-queryserver, very easy to repro:
 * Ensure you're using Java 1.7
 * 
 cd to phoenix-queryserver
 * 
 run mvn test

This produces the following error:
{code:java}
[ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-surefire-plugin:2.20:test (default-test) on 
project phoenix-queryserver: Execution default-test of goal 
org.apache.maven.plugins:maven-surefire-plugin:2.20:test failed: 
java.lang.UnsupportedClassVersionError: 
org/apache/calcite/avatica/server/RemoteUserExtractionException : Unsupported 
major.minor version 52.0 -> [Help 1]{code}
Any ideas, [~elserj]? Marked as blocker unless we're fine not supporting 
phoenix-queryserver.


was (Author: jamestaylor):
Looks like a general problem with phoenix-queryserver, very easy to repro:
 * Ensure you're using Java 1.7
 * 
cd to phoenix-queryserver
 * 
run mvn test

This produces the following error:
{code:java}
[ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-surefire-plugin:2.20:test (default-test) on 
project phoenix-queryserver: Execution default-test of goal 
org.apache.maven.plugins:maven-surefire-plugin:2.20:test failed: 
java.lang.UnsupportedClassVersionError: 
org/apache/calcite/avatica/server/RemoteUserExtractionException : Unsupported 
major.minor version 52.0 -> [Help 1]{code}
Any ideas, [~elserj]?

> For 1.x branches, phoenix-queryserver encounters build failure
> --------------------------------------------------------------
>
>                 Key: PHOENIX-5022
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5022
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: Josh Elser
>            Priority: Blocker
>             Fix For: 4.15.0
>
>
> It's likely been masked by frequent failures/flappers in phoenix-core, but 
> we're (maybe) finally able to run all the tests successfully. Maybe a Java 8 
> dependency snuck in again?
>  
> From this build: [https://builds.apache.org/job/Phoenix-omid2/150/console]
>  
> [ERROR] Failed to execute goal 
> org.apache.maven.plugins:maven-surefire-plugin:2.20:test (default-test) on 
> project phoenix-queryserver: Execution default-test of goal 
> org.apache.maven.plugins:maven-surefire-plugin:2.20:test failed: 
> java.lang.UnsupportedClassVersionError: 
> org/apache/calcite/avatica/server/HttpServer$Builder : Unsupported 
> major.minor version 52.0 -> [Help 1]



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