Using non-parallel custom class loaders for Layer configurations

[Mandy Chung]

> On Sep 9, 2016, at 8:44 AM, David M. Lloyd <david.lloyd at redhat.com> wrote:
> 
> On 09/08/2016 06:48 PM, Mandy Chung wrote:
>> 
>>> On Sep 8, 2016, at 3:29 PM, David M. Lloyd <david.lloyd at redhat.com> wrote:
>>> 
>>> Would it be possible to include a method like this (pretty old patch I had laying around):
>>> 
>>> diff --git a/jdk/src/java.base/share/classes/java/lang/ClassLoader.java b/jdk/src/java.base/share/classes/java/lang/ClassLoader.java
>>> index 1bb1580..3def10e 100644
>>> --- a/jdk/src/java.base/share/classes/java/lang/ClassLoader.java
>>> +++ b/jdk/src/java.base/share/classes/java/lang/ClassLoader.java
>>> @@ -469,6 +477,15 @@ public abstract class ClassLoader {
>>>        return lock;
>>>    }
>>> 
>>> +    /**
>>> +     * Determine whether this class loader is parallel-capable.
>>> +     *
>>> +     * @return {@code true} if the class loader is parallel-capable, {@code false} otherwise
>>> +     */
>>> +    protected final boolean isParallelCapable() {
>>> +        return ParallelLoaders.isRegistered(getClass());
>>> +    }
>>> +
>> 
>> This seems a fine method to add.  I think it can be a public method (I don’t see any reason it has to be protected)
> 
> Great!  Since it's such a small method though, would it be possible to just roll this change into some other changeset?  I can't really contribute the change in any form other than a patch right now.

I file a RFE and Brent Christian has agreed to work on it and will go through JDK 9 FC approval request. 
  https://bugs.openjdk.java.net/browse/JDK-8165793

Mandy