Resolution:
Description:
============
After upgrading the default Java Runtime (JRE) version shipped with TIBCO BusinessEvents, JVM running TIBCO BusinessEvents (BE) Inference Agent crashes at startup or at random. The crash generates hs_err_pidxxx.log files.


Environment:
==========
TIBCO BusinessEvents Release 3.x, 4.x
Java Runtime - JRE release 6.0_23 or above.


Symptoms:
=========
After the upgrade of JRE, the inference engine JVM is crashes and is creates a JVM fatal crash report file named as hs_err_pidxxx.log, with the following entries.

#  SIGSEGV (0xb) at pc=0xffffffff76af2ce8, pid=xxxx, tid=402
#
# JRE version: 6.0_23-b05
# Java VM: Java HotSpot(TM) 64-Bit Server VM
# Problematic frame:
# J  com.tibco.cep.util.CodegenFunctions.stringEQ(Ljava/lang/String;Ljava/lang/String;)Z



Cause:

=====
The issue is with the JRE release. Oracle has acknowledged the same and issued a fix in later releases of JRE. As per the Oracle Release Notes, the issue is fixed in JRE 6u27-rev(b22)  and in JRE 7 (JRE 7 release notes also has this). See References section for more details.


Resolution:
=========
The recommendation is to use the JRE version certified/bundled with the TIBCO BusinessEvents release or use a JRE release which fixes this issue.


WorkAround:

===========

As a workaround you can use the JVM Parameter: -XX:CompileCommand=exclude,com/tibco/cep/util/CodegenFunctions,stringEQ, in your &ltbe engine>.TRA file



References:

==========

http://www.oracle.com/technetwork/java/javase/documentation/overview-156328.html

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=2213282 -- JRE 1.6 patch 27 .

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7041100 -- in JRE 7.0