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From "Paul Sandoz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9608) Support Java 9
Date Wed, 31 May 2017 00:41:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16030429#comment-16030429
] 

Paul Sandoz commented on CASSANDRA-9608:
----------------------------------------

The JMX RMI connector was moved into it's own module, java.management.rmi. See:

  https://bugs.openjdk.java.net/browse/JDK-8173607

As a result the class com.sun.jmx.remote.internal.RMIExporter was moved to the package com.sun.jmx.remote.internal.rmi.

The Cassandra class org.apache.cassandra.utils.JMXServerUtils depends on RMIExporter.

In total JMXServerUtils depends on the following internal classes:

  com.sun.jmx.remote.internal.RMIExporter
  com.sun.jmx.remote.security.JMXPluggableAuthenticator
  sun.rmi.registry.RegistryImpl
  sun.rmi.server.UnicastServerRef2


> Support Java 9
> --------------
>
>                 Key: CASSANDRA-9608
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9608
>             Project: Cassandra
>          Issue Type: Task
>            Reporter: Robert Stupp
>            Priority: Minor
>
> This ticket is intended to group all issues found to support Java 9 in the future.
> From what I've found out so far:
> * Maven dependency {{com.sun:tools:jar:0}} via cobertura cannot be resolved. It can be
easily solved using this patch:
> {code}
> -        <dependency groupId="net.sourceforge.cobertura" artifactId="cobertura"/>
> +        <dependency groupId="net.sourceforge.cobertura" artifactId="cobertura">
> +          <exclusion groupId="com.sun" artifactId="tools"/>
> +        </dependency>
> {code}
> * Another issue is that {{sun.misc.Unsafe}} no longer contains the methods {{monitorEnter}}
+ {{monitorExit}}. These methods are used by {{o.a.c.utils.concurrent.Locks}} which is only
used by {{o.a.c.db.AtomicBTreeColumns}}.
> I don't mind to start working on this yet since Java 9 is in a too early development
phase.



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