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https://issues.apache.org/jira/browse/SSHD-1032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17160809#comment-17160809
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Evgeny Pasynkov commented on SSHD-1032:
---------------------------------------
Nope, the buffer is not reused. The write loop looks like this (in Kotlin): -
it just reads data portion from pipe and sends it into SSH channel
{code:java}
do {
val buffer = ByteArray(8192)
val read = pipe.read(buffer)
if (read > 0) {
try {
ioOut.writePacket(ByteArrayBuffer(buffer, 0, read,
true)).awaitWrite()
} catch (ex: Throwable) {
throw IOException("Error writing $read bytes. Channel: ${ioOut}",
ex)
}
}
} while (read > 0)
{code}
I will do exhaustive testing tomorrow with debug logging enabled, and hopefully
will provide logs with more details
> java.lang.ArrayIndexOutOfBoundsException arraycopy
> --------------------------------------------------
>
> Key: SSHD-1032
> URL: https://issues.apache.org/jira/browse/SSHD-1032
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.5.0
> Reporter: Evgeny Pasynkov
> Priority: Major
>
> When invoking writePacket, I quite often get the following exception:
> {noformat}
> Caused by: java.lang.ArrayIndexOutOfBoundsException arraycopy: last source
> index 32768 out of bounds for byte[8192]
> at java.base/java.lang.System.arraycopy(Native Method)
> at
> org.apache.sshd.common.util.buffer.ByteArrayBuffer.putRawBytes(ByteArrayBuffer.java:230)
>
> at
> org.apache.sshd.common.channel.ChannelAsyncOutputStream.createSendBuffer(ChannelAsyncOutputStream.java:229)
>
> at
> org.apache.sshd.common.channel.ChannelAsyncOutputStream.doWriteIfPossible(ChannelAsyncOutputStream.java:164)
>
> at
> org.apache.sshd.common.channel.ChannelAsyncOutputStream.writePacket(ChannelAsyncOutputStream.java:70){noformat}
> This never happened in 2.4.0, so it is definitely a regression
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