RFR [jdk8] : 8193807 : AIX: avoid UnsatisfiedLinkError by providing empty basic implementations of getSystemCpuLoad and getProcessCpuLoad

[Volker Simonis]

Hi Matthias,

the change looks good!
I can sponsor it once we get the approval.

Also forwarded to buil-dev for the minimal build change.

Thank you and best regards,
Volker


On Wed, Dec 20, 2017 at 9:50 AM, Baesken, Matthias
<matthias.baesken at sap.com> wrote:
> Hello  , Mark reported  this issue on AIX  with OpenJDK8 :
>
>>
>>I'm getting an unsatisfied link error when using logstash on AIX but I suspect the issue is with AIX or the JRE, the exception is:
>>
>> java.lang.UnsatisfiedLinkError: sun.management.OperatingSystemImpl.getProcessCpuLoad()D
>>                  getProcessCpuLoad at sun/management/OperatingSystemImpl.java:-2
>>                             <init> at org/logstash/instrument/monitors/ProcessMonitor.java:40
>>                             detect at org/logstash/instrument/monitors/ProcessMonitor.java:79
>>                           generate at org/logstash/instrument/reports/ProcessReport.java:15
>>
>> this is the line in logstash:
>>
>> this.cpuProcessPercent = scaleLoadToPercent(unixOsBean.getProcessCpuLoad());
>>
>> https://github.com/elastic/logstash/blob/master/logstash-core/src/main/java/org/logstash/instrument/monitors/ProcessMonitor.java
>>
>>
>> Could anybody help steer me in the right direction?
>>
>
> This fix addresses  the missing  getSystemCpuLoad and getProcessCpuLoad  on AIX  .
> JDK8 is only affected , JDK9 and higher is not affected .
>
> Could I get a  review for this change   ?
>
>
> Change :
>
> http://cr.openjdk.java.net/~mbaesken/webrevs/8193807/
>
> Bug :
>
> https://bugs.openjdk.java.net/browse/JDK-8193807
>
>
> Thanks, Matthias