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Bug 365610

Summary:	Framework should ensure weaving hooks are presented with byte code in a class cache environment
Product:	[Eclipse Project] Equinox	Reporter:	Thomas Watson <tjwatson>
Component:	Framework	Assignee:	Thomas Watson <tjwatson>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	sykesm.oss, tjwatson
Version:	3.7
Target Milestone:	3.7.2
Hardware:	All
OS:	All
Whiteboard:
Bug Depends on:	361390
Bug Blocks:

Description Thomas Watson

2011-12-05 10:05:21 EST

Cloning bug to backport to 3.7.2.


+++ This bug was initially created as a clone of Bug #361390 +++

Build Identifier: 3.7.0.v20110613

When working with Apache Aries in an environment running on an IBM J9 JVM, the 'class data sharing' adapter for eclipse is returning a shared class cache token to the framework out of a class loading hook.  The token is then getting passed to the OSGi weaving hooks where the weavers are falling because the class bytes are invalid.

Perhaps there should be a mechanism where the framework attempts to verify that the byte code returned from load hook has a proper byte code magic of 'CAFEBABE' before passing it to the weaving hooks?


Reproducible: Always

Steps to Reproduce:
1. Run equinox on an IBM JDK with the CDS framework extension
2. Enable a weaving hook
3. Note that the weaving hook does not get class bytes by the shared class cache token

Comment 1 Thomas Watson

2011-12-05 10:52:19 EST

I released the fix to 3.7.2 with the following commit:

http://git.eclipse.org/c/equinox/rt.equinox.framework.git/commit/?h=R3_7_maintenance&id=63ae272ea29e707045e07d3fe188b0382c46de9f