RFR: JDK-8074395: Random build failures in javadoc on Solaris

[Tim Bell]

Hello Erik:

> JPRT builds on Solaris randomly fails. The failures look like the 
> typical problem of over allocating resources on Solaris. This time it 
> seems like it's too many instances of javadoc that overloads the machine.
>
> My suggested fix is to use the JAVA_SMALL flags for all javadoc 
> invocations except the main one for the core apis. The main invocation 
> is big and needs a big jvm configuration. All the rest are comparably 
> very small and should be fine with a small configuration. Preliminary 
> testing on my local linux machine shows no performance regression from 
> this change.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8074395
> Webrev: http://cr.openjdk.java.net/~erikj/8074395/webrev.root.01

Looks good to me.

Tim