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https://issues.apache.org/jira/browse/DIRMINA-1084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16427969#comment-16427969
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Dhinakaran Arumugam commented on DIRMINA-1084:
----------------------------------------------
OK.. got it. Thanks.
> 100% CPU when using IoBuffer.shrink() method in some cases
> ----------------------------------------------------------
>
> Key: DIRMINA-1084
> URL: https://issues.apache.org/jira/browse/DIRMINA-1084
> Project: MINA
> Issue Type: Bug
> Components: SSL
> Affects Versions: 2.0.7
> Environment: Any
> Reporter: Dhinakaran Arumugam
> Priority: Major
>
> {code:java}
> "socket_c2s_ssl-thread-6" daemon prio=10 tid=0x82f5a000 nid=0x1355 runnable
> [0x7d618000]
> java.lang.Thread.State: RUNNABLE
> at
> org.apache.mina.core.buffer.AbstractIoBuffer.shrink(AbstractIoBuffer.java:317)
> at
> org.apache.mina.filter.ssl.SslHandler.fetchOutNetBuffer(SslHandler.java:406)
> at
> org.apache.mina.filter.ssl.SslHandler.writeNetBuffer(SslHandler.java:642)
> at
> org.apache.mina.filter.ssl.SslFilter.initiateClosure(SslFilter.java:665)
> at org.apache.mina.filter.ssl.SslFilter.filterClose(SslFilter.java:627)
> - locked <0x9f31fb80> (a org.apache.mina.filter.ssl.SslHandler)
> {code}
> When one tries to shrink a buffer which minimal capacity is set to 0, and set
> the size to 0, it enter into an infinite loop.
> Bug https://issues.apache.org/jira/browse/DIRMINA-988 has created in 2.0.8 it
> was a similar bug, but the code is slightly different in 2.0.7. But the
> problem is same. We should acknowledge this issue is present in 2.0.7.
> This is due to this loop :
> {code:java}
> while (newCapacity >>> 1 >= minCapacity) {
> newCapacity >>>= 1;
> }
> {code}
>
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