What is the parent class loader of the class loader defining the class from JDK 
8 tools.jar?  Is it null?

Mandy

> On Oct 8, 2015, at 2:08 PM, Keimpe Bronkhorst <keimpe.bronkho...@oracle.com> 
> wrote:
> 
> Alan,
> 
> I'm running JDeveloper with jigsaw build 
> 1.9.0-ea-jigsaw-nightly-h3477-20150929-b83. Compiling in-process using JSR199 
> with a Javac from JDK8 tools.jar is working fine.
> 
> Keimpe
> 
> 
> On 10/8/2015 2:27 PM, Alan Bateman wrote:
>> 
>> On 08/10/2015 20:45, Keimpe Bronkhorst wrote:
>>> Alan,
>>> If the user's project's JDK has a higher version than the JDK of 
>>> JDeveloper, the compile is done out-of-process. Otherwise an in-process 
>>> JSR199 is attempted.
>>> Yes, -source/-target/-Xbootclasspath (and now -release) for cross-compiling 
>>> is another way, but it doesn't use the Javac of the user's project's JDK. 
>>> The user can easily set up a cross-compile in JDeveloper, but some users 
>>> want to use the actual Javac of their project's JDK.
>> I don't want to comment on trying to mixing different versions of JDK 
>> modules in the same VM but I'm curious whether your loading of tools.jar in 
>> the target VM continues to work when you run it on jake and when targeting a 
>> JDK 8 or older. I would expect it should work as before, assuming of course 
>> that your custom class loader that is loading from the targets tools.jar 
>> isn't doing parent-first delegation. The latter point is important because a 
>> consequence of the JEP 220 work is that types that were previously in 
>> tools.jar are always visible when running a class path application on the 
>> JDK.
>> 
>> -Alan
> 

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