RFR(M): JDK-8165805 - [TESTBUG] CDS needs to support JVMTI CFLH - test development

Ioi Lam ioi.lam at oracle.com
Sat Sep 10 09:15:23 UTC 2016

Hi Misha,

These 3 files aren't specific to CDS.


Maybe they should be moved tohotspot/test/testlibrary/jvmti, i.e., in 
the same directory as libSimpleClassFileLoadHook.c? (The .c file is a a 
native agent where your new code implements a Java agent).


     In the runTest() method, the "// create an archive" part is executed
     for every test case. However, it seems the same archive can be used
     for all 4 test cases, so for efficiency it's better to create the
     archive only one time (instead of 4).

The rest of the code looks good.

- Ioi

On 9/9/16 7:31 PM, Mikhailo Seledtsov wrote:
> Please review the tests that accompany the changes for
>     "JDK-8078644 - CDS needs to support JVMTI CFLH"
>     The tests include several test cases that are produced by combination
>     of transforming related classes: super/sub class and 
> interface/implementor.
>     The classes reside in CDS archive. Tests check to ensure that correct
>     transformation is performed, classes are loaded from the archive 
> only when appropriate,
>     and that test process using the archive completes w/o errors/crashes.
>     Details:
>     The main class is TransformRelatedClasses.java; start review with 
> this class.
>     Other classes are:
>       - TransformSuperAndSubClasses.java, 
> TransformInterfaceAndImplementor.java
>         the "actual tests", but really just test headers calling into 
> TransformRelatedClasses.java
>       - TransformTestCommon.java - common methods for transformation 
> tests
>       - TestEntry.java - an entry into combinatorial test table 
> representing a single test case
>       - CDSTestUtils.java, TransformUtil.java - utility classes that 
> are common  CDS
>         tests
>       - TransformerAgent.java - agent that performs transformation 
> (comes with .mf file)
>     JBS: https://bugs.openjdk.java.net/browse/JDK-8165805
>     Webrev: http://cr.openjdk.java.net/~mseledtsov/8165805.00/
>     Testing:
>         Ran these tests on a standard set of platforms thru automated 
> test system.
> Thank you,
> Misha

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