RFR (XS) 8188828 Intermittent ClassNotFoundException: jdk.test.lib.Platform for compiler tests

[Ioi Lam]

There are several possibilities. One is to pre-compile a bunch of 
libraries during the build time, and put them in the classpath using the 
jtreg -cpa: option.

Another possibility is to change jtreg to better express the dependency 
between different classes compiled by jtreg.

Thanks

- Ioi


On 10/8/17 6:33 PM, David Holmes wrote:
> Hi Ioi,
>
> This seems like a temporary workaround - fine for now - but what is 
> the real fix here? It's crazy that one test library class can't use 
> another class from the same test library!
>
> Thanks,
> David
>
> On 7/10/2017 6:19 AM, Ioi Lam wrote:
>> Please review this very simple change:
>>
>> https://bugs.openjdk.java.net/browse/JDK-8188828
>> http://ioilinux.us.oracle.com/webrev/jdk10/8188828_compiler_test_class_not_found.v01/ 
>>
>>
>> The dependency of
>>
>>      FileInstaller -> Utils -> JDKToolLauncher -> Platform
>>
>> has caused many intermittent ClassNotFoundException in the hotspot 
>> nightly runs.
>> While this fix does not address the root cause (proper dependencies 
>> are not
>> specified in the test cases -- which we are planning to fix), we will 
>> hopefully
>> see much fewer occurrences of this annoying failure scenario.
>>
>> Thanks a lot to Igor for suggesting the simple fix!
>>
>> - Ioi
>>