[
https://issues.apache.org/jira/browse/KYLIN-2464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15882437#comment-15882437
]
liyang commented on KYLIN-2464:
-------------------------------
Merged. Thanks Cheng!
> Leveraging interface declaration to avoid runtime errors
> --------------------------------------------------------
>
> Key: KYLIN-2464
> URL: https://issues.apache.org/jira/browse/KYLIN-2464
> Project: Kylin
> Issue Type: Bug
> Reporter: Wang Cheng
> Priority: Minor
> Fix For: v2.0.0
>
> Attachments:
> 0001-KYLIN_2464-replace-ConcurrentHashMap-with-Concurrent.patch
>
>
> There are some runtime errors happened when code is compiled with high Java
> version and runs on low Java version, for example:
> Exception in thread "main" java.lang.NoSuchMethodError:
> java.util.concurrent.ConcurrentHashMap.keySet()Ljava/util/concurrent/ConcurrentHashMap$KeySetView;
> at org.apache.kylin.cube.CubeManager.getInstance(SourceFile:110)
> at
> org.apache.kylin.tool.CubeMigrationCheckCLI.checkCube(CubeMigrationCheckCLI.java:141)
> at
> org.apache.kylin.tool.CubeMigrationCheckCLI.execute(CubeMigrationCheckCLI.java:121)
> at
> org.apache.kylin.tool.CubeMigrationCLI.checkMigrationSuccess(CubeMigrationCLI.java:170)
> at
> org.apache.kylin.tool.CubeMigrationCLI.moveCube(CubeMigrationCLI.java:156)
> at
> org.apache.kylin.tool.CubeMigrationCLI.moveCube(CubeMigrationCLI.java:165)
> at
> io.kyligence.kap.tool.release.KapReleaseCLI.main(KapReleaseCLI.java:66)
> It's a better idea that declaring a variable to be an interface.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
