Name: js5519 Date: 11/09/99


I cannot reproduce this in a simple test case I can send along.
However, I can reproduce it in our environment, and I tried it with
the JDK1.2.2 community source as well.

We have a server with two custom classloaders that follow the JDK1.2
loader hierarchy mechanism: subLoader->superLoader->systemLoader

This works in most cases, but for one case throws an exception:
"java.lang.LinkageError: Class java/lang/String violates loader constraints"

Adding a zero argument constructor (the class being loaded that
triggers this has none by default) that does System.out.println("HI")
makes the exception go away.

I looked at the JDK1.2.2 source a bit and found that
    src/share/javavm/runtime/classresolver.c (v. 1.173)
seemed to be the culprit, not always correctly setting the links or
pointers when a constraint structured gets resized.

I downloaded the 1.3beta version of classresolver.c (v. 1.175), which
only differs by a few lines and in this area, and, when compiled into
my JDK 1.2.2 tree, seems to fix the problem.

Will this fix show up in the JDK1.2.X line?
(Review ID: 97615)
======================================================================