RFR: 8139430

[Mandy Chung]

Hi Shura,

Thanks for doing it and it’s good to see the unnecessary dependency to java.management eliminated.

The new jdk.testlibrary.management package name is fine.  It’s okay to keep the class name InputArguments as Jaroslav suggests and it’s easier to tell what this class is about.

There is a copy of ProcessTools and InputArguments in the hotspot repository under
   hotspot/test/testlibrary/jdk/test/lib/

Are we planning to remove this duplicated copy?  If not, same patch should be applied to those copy.  It’s fine to separate this and push the hotspot test library change via hotspot-rt repo.  Christian can probably sponsor the patch for you.

I’ll sponsor the jdk change and push it to jdk9/dev once you send me an updated patch.

Mandy


> On Nov 9, 2015, at 10:12 AM, Alexandre (Shura) Iline <alexandre.iline at oracle.com> wrote:
> 
> Hi
> 
> I have just realized that an NPE could also be possible in test/lib/testlibrary/jdk/testlibrary/Platform.java so it should be updated also:
> http://cr.openjdk.java.net/~shurailine/8139430/webrev.04/
> 
> Shura
> 
>> On Nov 9, 2015, at 8:54 PM, Alexandre (Shura) Iline <alexandre.iline at oracle.com> wrote:
>> 
>> Hi,
>> 
>> This is one of the ways to fix 8139430: http://cr.openjdk.java.net/~shurailine/8139430/webrev.03
>> 
>> Could you please take a look on it?
>> 
>> A few comments. 
>> 
>> The biggest dependency on java.management was in jdk.testlibrary.ProcessTools.getProcessId() method. I have changed the method to use the new process API, which helped to avoid updating a lot of code.
>> 
>> I am moving the rest library code which depended on java.management and jdk.management  to a new “management" subpackage of the jdk library: jdk.testlibrary.management. Another possibility I have considered is “ext” or “extended” subpackage, which would have all the classes which depend on anything but java.base. With “ext” there would be no way to keep the desired granularity with the test modules dependencies.
>> 
>> The methods which worth moving fit well into two classes: 
>> jdk.testlibrary.management.ThreadMXBeanTool - to include a couple of method which previously belonged to the TestThread utility methods.
>> jdk.testlibrary.management.RuntimeMXBeanTool - previously named as jdk.testlibrary.InputArguments
>> 
>> None of moved/renamed test library methods were used anywhere in tests, so no test updates needed:
>> jdk.testlibrary.InputArguments is not used, instead every test which needs that functionality directly calls RuntimeMXBean.getInputArguments()
>> jdk.testlibrary.TestThread.waitUntilBlockingOnObject(Thread, Thread.State, Object) and jdk.testlibrary.TestThread.waitUntilInNative(Thread) also were not used as there is a similar class outside of the test library:
>> ./closed/com/oracle/jfr/common/jrockit/TestThread.java
>> 
>> Please let me know what you think.
>> 
>> Shura
>