[jira] [Created] (YARN-6293) Investigate Java 7 compatibility for new YARN UI

["Li Lu (JIRA)" <ji...@apache.org>]

Li Lu created YARN-6293:
---------------------------

             Summary: Investigate Java 7 compatibility for new YARN UI
                 Key: YARN-6293
                 URL: https://issues.apache.org/jira/browse/YARN-6293
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Li Lu


Right now when trying the YARN new UI with Java 7, I can get the following warning:
{code}
[INFO] --- maven-enforcer-plugin:1.4.1:enforce (dist-enforce) @ hadoop-yarn-ui ---
[WARNING] Rule 1: org.apache.maven.plugins.enforcer.RequireJavaVersion failed with message:
Detected JDK Version: 1.7.0-67 is not in the allowed range [1.8,).
{code}

While right now this warning does not cause any troubles for trunk integration, when some users would like to package the new UI with some branch-2 based code, the JDK requirement would block the effort. So the question here is, is there any specific component in new UI codebase that prevent us using Java 7? I remember it should be a JS based implementation, right? 



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