RFR: 8303102: jcmd: ManagementAgent.status truncates the text longer than O_BUFLEN

[David Holmes]

On Thu, 23 Feb 2023 05:16:52 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> Implementation of the "ManagementAgent.status" indirectly depends on the size of "O_BUFLEN".
> 
> The root cause is usage of [print_cr()](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/utilities/ostream.cpp#L153) which may [truncate](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/utilities/ostream.cpp#L101) the output.
> 
> The solution is similar to the [JDK-8263640](https://bugs.openjdk.org/browse/JDK-8263640). see discussion about that approach https://github.com/openjdk/jdk/pull/4616

Change seems reasonable. Can we get an actual regression test to verify this?

test/jdk/sun/management/jmxremote/startstop/JMXStatusTest.java line 36:

> 34: /**
> 35:  * @test
> 36:  * @bug 8023093 8138748 8142398 8303102

As this test doesn't explicitly test/check the issue in 8303102 I don't think it needs to belisted on the @bug line. (And if it does then the copyright year needs t be updated too).

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PR: https://git.openjdk.org/jdk/pull/12724