[PATCH] Link to the Sun JVM bug mentioned in OffsetCache

This bug has now been published by Sun. We should link to the database entry so we can find more detail later.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
  "Shawn O. Pearce" <spearce@spearce.org> wrote:
  > Robin Rosenberg <robin.rosenberg.lists@dewire.com> wrote:
  > > > diff --git a/org.spearce.jgit/src/org/spearce/jgit/lib/OffsetCache.java b/org.spearce.jgit/src/org/spearce/jgit/lib/OffsetCache.java
  > > > +	private void gc() {
  > > > +		R r;
  > > > +		while ((r = (R) queue.poll()) != null) {
  > > > +			// Sun's Java 5 and 6 implementation have a bug where a Reference
  > > > +			// can be enqueued and dequeued twice on the same reference queue
  > > > +			// due to a race condition within ReferenceQueue.enqueue(Reference).
  > > 
  > > Reference to the official Sun bug? Might help if someone wants to
  > > implement a flag to avoid this (if necessary...)
  > 
  > Actually, this is a new bug.  I tried looking through BugParade
  > but nobody has mentioned or discovered this before.
  > 
  > I submitted a bug report yesterday, but they have yet to publish it.

  And here it is.

 .../src/org/spearce/jgit/lib/OffsetCache.java      |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)