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Posted to dev@mnemonic.apache.org by "Zhen Li (Jira)" <ji...@apache.org> on 2021/05/21 05:39:00 UTC
[jira] [Resolved] (MNEMONIC-640) [JDK14] Upgrade issue about object
is not an instance of declaring class
[ https://issues.apache.org/jira/browse/MNEMONIC-640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhen Li resolved MNEMONIC-640.
------------------------------
Resolution: Fixed
https://github.com/apache/mnemonic/pull/216
> [JDK14] Upgrade issue about object is not an instance of declaring class
> ------------------------------------------------------------------------
>
> Key: MNEMONIC-640
> URL: https://issues.apache.org/jira/browse/MNEMONIC-640
> Project: Mnemonic
> Issue Type: Sub-task
> Components: Example, JDK Upgrade
> Affects Versions: 0.15.0
> Reporter: Wang, Gang
> Assignee: Zhen Li
> Priority: Major
> Fix For: 0.15.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
>
> The following issue is caused by deprecated buffer cleaner on higher version of JDK11, it needs to be investigated and refactor the code logic according to new method for native memory backed bytebuffer cleaning.
> {code:java}
> Manually destroy Buffer at 759EBB3D.
> Reclaim Memory Buffer: 759EBB3D Size: 1329017
> Exception in thread "main" java.lang.IllegalArgumentException: object is not an instance of declaring class
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at org.apache.mnemonic.SysMemAllocator$1.reclaim(SysMemAllocator.java:106)
> at org.flowcomputing.commons.resgc.ResCollector.destroyRes(ResCollector.java:158)
> at org.flowcomputing.commons.resgc.ResHolder.destroy(ResHolder.java:132)
> at org.flowcomputing.commons.resgc.ResHolder.destroy(ResHolder.java:118)
> at org.apache.mnemonic.examples.Main.main(Main.java:155)
> {code}
>
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