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From "Ralph Goers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-1359) Add support for Java 9 StackWalker API in ReflectionUtil
Date Mon, 13 Mar 2017 23:58:41 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-1359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15923236#comment-15923236
] 

Ralph Goers commented on LOG4J2-1359:
-------------------------------------

https://bugs.openjdk.java.net/browse/JDK-8176593 has been created for the performance issue
with Throwable.

I am working on the search performance test as the current method is forced to consume the
whole stack. Also, it was recommended to move the creation of the StackWalker out of the test.
 There was at least one place where this was done in the original tests and I will fix it
there as well.

> Add support for Java 9 StackWalker API in ReflectionUtil
> --------------------------------------------------------
>
>                 Key: LOG4J2-1359
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1359
>             Project: Log4j 2
>          Issue Type: Improvement
>          Components: API
>         Environment: Java 1.9+
>            Reporter: Matt Sicker
>            Assignee: Ralph Goers
>              Labels: jdk9
>
> [StackWalker|http://download.java.net/jdk9/docs/api/java/lang/StackWalker.html]
> Based on the functional nature of this API, supporting it may require compiling at least
one class using javac 1.9 and reflectively loading it in ReflectionUtil similar to how Spring
supports newer JDK APIs.
> Without support for StackWalker, ReflectionUtil will fall back to using a slower API
in Java 1.9. This is because the Reflection class is a sun-internal class which are no longer
exported to non-JDK code without setting special command line flags.



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